UK Income Tax & National Insurance

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HMRC reduces the Personal Allowance by £1 for every £2 of adjusted net income above £100,000; at £110,000 of adjusted net income, that is £10,000 over the threshold, producing a £5,000 reduction that brings the standard £12,570 allowance for 2026/27 down to £7,570, which is exactly what the first option describes. The third option is wrong because £125,140 is the point where the allowance reaches zero, not where the taper begins; tapering starts at £100,000. The fourth option wrongly assumes an all-or-nothing cliff edge rather than the gradual £1-per-£2 withdrawal HMRC actually applies as income rises. The second option is wrong because there is no marginal relief that increases the allowance in this income range; rather, the interaction of the withdrawn allowance with the underlying 40% tax band is precisely what creates the well-known 60% effective marginal tax rate that applies to income between £100,000 and £125,140.

Source: GOV.UK: Income Tax rates and Personal Allowances — how the Personal Allowance is reduced

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For 2026/27, income from £50,271 up to £125,140 falls within the higher rate band and is taxed at 40%, making the third option correct. The basic rate of 20% applies only to income from £12,571 up to £50,270, a lower band that ends well before £125,140, so describing the £50,271-£125,140 range as basic rate misapplies the wrong band's rate to it. The additional rate of 45% only applies to income above £125,140, so applying it to income that tops out at £125,140 overstates the rate for this range. The Personal Allowance covers only the first £12,570 of income before any taper; income in the £50,271-£125,140 range is far above the allowance and is fully taxable, so treating it as covered by the allowance is incorrect.

Source: GOV.UK: Income Tax rates and Personal Allowances — current rates and thresholds

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Class 1 employee National Insurance for 2026/27 charges 0% below the Primary Threshold, 8% on earnings between the Primary Threshold and the Upper Earnings Limit of £967 per week, and only 2% on any earnings above the UEL, so the rate actually falls rather than rises for the top slice of pay, which the second option correctly states and which often surprises people who expect National Insurance to keep increasing like a conventional progressive tax band. The first option is wrong because earnings above the UEL remain subject to National Insurance, just at the lower 2% rate, rather than being exempt altogether. The fourth option is wrong because the rate drops to 2% above the UEL rather than staying at 8%. The third option is wrong because UK National Insurance, like income tax, is calculated on a marginal, slice-by-slice basis across the relevant thresholds, not by pushing an entire week's pay into one single rate once any threshold is crossed.

Source: GOV.UK: National Insurance rates and categories — Class 1 employee National Insurance rates

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Since compulsory Class 2 National Insurance was removed for the lower-profits band, self-employed individuals with profits at or above the relevant threshold of £7,105 have their National Insurance record treated as paid automatically at no cost, but those below it, like this individual at £6,000, receive no automatic credit and must actively choose to pay voluntary Class 2 contributions if they want that year to count towards their state pension and other contributory benefits, which is what the fourth option correctly describes. The second option is wrong because Class 2 is no longer compulsory at any profit level under the current rules. The third option is wrong because Class 4 is a separate charge that only applies to profits above its own lower profits limit and has no mechanism for crediting the basic National Insurance record in place of Class 2. The first option is wrong because profits below the threshold do not generate an automatic credit; a voluntary payment is required to secure it.

Source: GOV.UK: Self-employed National Insurance rates — Class 2 contributions and voluntary payment

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Marriage Allowance for 2026/27 lets a partner who does not use all of their Personal Allowance transfer a fixed £1,260 of it to a spouse or civil partner, which reduces the recipient's tax bill by up to £252 in the year (£1,260 taxed at the 20% basic rate they would otherwise have paid on it) — the statement describing exactly this £1,260 transfer and £252 saving is correct. The option citing a £3,250 transfer and £650 saving mixes up the fixed Marriage Allowance transfer amount with the unrelated Blind Person's Allowance figure and an incorrect resulting saving. The option claiming the allowance is unavailable is wrong because the recipient partner's £45,000 income falls squarely within the basic rate band (£12,571 to £50,270), which is exactly the band Marriage Allowance is designed to benefit; it would only be barred if the recipient were a higher or additional rate taxpayer. The option requiring both partners to have income below the Personal Allowance misstates the rule: only the transferring partner needs unused allowance, while the receiving partner must be a basic rate taxpayer, not also below the Personal Allowance.

Source: GOV.UK: Marriage Allowance — how it works and eligibility

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Blind Person's Allowance for 2026/27 is worth £3,250 and is added on top of the standard Personal Allowance rather than replacing or offsetting it, so a qualifying individual with no allowance to transfer combines £3,250 with the standard £12,570 to get £15,820 of tax-free income before any tax is due, which is what the first option correctly describes. The option claiming it replaces the Personal Allowance entirely is wrong because Blind Person's Allowance is always additive, layering on top of whatever Personal Allowance the individual is otherwise entitled to. The option requiring the standard Personal Allowance to be tapered to zero first is wrong because Blind Person's Allowance is available regardless of income level and regardless of whether any taper applies at all; it has no such precondition. The option describing a pound-for-pound reduction is wrong because there is no mechanism by which claiming Blind Person's Allowance shrinks the standard Personal Allowance — the two allowances simply stack together.

Source: GOV.UK: Blind Person's Allowance — rates and how it's added to your Personal Allowance

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For 2026/27 the tax-free dividend allowance is £500, and dividend income above it for a basic rate taxpayer is taxed at the ordinary dividend rate of 10.75%, so the £2,000 in this scenario has £500 covered by the allowance and the remaining £1,500 taxed at 10.75%, matching the option describing exactly that split and rate. The option treating dividends like employment income is wrong because dividends are taxed under their own separate allowance and rate structure, never at the 20% employment basic rate. The option claiming a permanent £2,000 tax-free amount is wrong because the dividend allowance has been reduced over several years and now sits at £500, not £2,000. The option describing a £1,000 allowance and an 8.75% rate is wrong because those were the figures that applied in earlier tax years; from 6 April 2026 the allowance is £500 and the ordinary rate rose to 10.75%.

Source: GOV.UK: Tax on dividends — dividend allowance and rates for 2026/27; GOV.UK: Changes to tax rates for property, savings and dividend income

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HMRC's trading allowance shelters up to £1,000 of gross trading income each tax year; because £900 is at or below that £1,000 ceiling, the allowance covers it in full, no tax is due, and HMRC's guidance says that in general someone in this position does not need to tell HMRC about it or register for Self Assessment, which is exactly what the correct option describes. The option requiring registration and full taxation is wrong because the allowance applies to gross trading income up to and including £1,000, not only above it. The option allowing both actual expenses and the full allowance against the same income is wrong because the trading allowance and a deduction for actual expenses are mutually exclusive against the same income; a taxpayer must choose one or the other, never both together. The option denying the allowance to hobby-turned-business income is wrong because the trading allowance applies to trading income generally and has no special exclusion for activities that started as a hobby.

Source: GOV.UK: Tax-free allowances on property and trading income

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The property allowance lets an individual shelter up to £1,000 of gross property income a year tax-free; because the £1,000 allowance exceeds the £700 of gross income in this scenario, it covers the income in full, leaving nothing to report, but HMRC's rules do not permit also deducting the £150 of actual expenses on top of the allowance, so the option describing full relief without a separate expense deduction is correct. The option requiring the £150 of expenses to be deducted instead is wrong because claiming the property allowance is an alternative to deducting expenses, not a requirement to use expenses first. The option allowing both the full allowance and the expenses together is wrong because the allowance and actual expenses are mutually exclusive against the same income, exactly as with the trading allowance. The option restricting the property allowance to residential letting only is wrong because the allowance applies broadly to property income, including casual income such as driveway or parking letting, not solely to residential tenancies.

Source: GOV.UK: Tax-free allowances on property and trading income

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The Personal Savings Allowance tiers by tax band: £1,000 tax-free for basic rate taxpayers, £500 for higher rate taxpayers, and nothing for additional rate taxpayers, so the basic rate taxpayer's £800 is fully covered, the higher rate taxpayer covers £500 of their £800 leaving £300 taxable, and the additional rate taxpayer has the entire £800 taxable — precisely what the first option states. The option giving everyone the same £1,000 allowance is wrong because the allowance shrinks as tax band rises and disappears entirely for additional rate taxpayers. The option reserving the allowance for additional rate taxpayers only is wrong because it is the additional rate taxpayer who receives no allowance at all, the opposite of this claim. The option restricting the allowance to interest earned inside a Cash ISA is wrong because Cash ISA interest is already tax-free in its own right and does not use up the Personal Savings Allowance; the allowance instead applies to interest from ordinary, non-ISA savings and accounts.

Source: GOV.UK: Tax on savings interest — Personal Savings Allowance

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The High Income Child Benefit Charge, from 6 April 2024 onward, starts at £60,000 of adjusted net income and withdraws Child Benefit at 1% for every £200 of income above that threshold, reaching a 100% charge at £80,000; at £70,000 the taxpayer is £10,000 over the threshold, and £10,000 divided by £200 gives 50 lots of 1%, so the charge equals 50% of the Child Benefit received, exactly as the correct option states. The option treating any income over £60,000 as an immediate 100% charge is wrong because the withdrawal is gradual across the £60,000-£80,000 band, not an instant cliff edge. The option claiming no charge until £80,000 is wrong because the charge begins accruing as soon as income passes £60,000, well before £80,000. The option using a £100-per-1%-step rate is wrong because that steeper taper applied only before 6 April 2024; the current rule uses £200 per 1%, which is why the threshold band was widened to £60,000-£80,000 rather than the older £50,000-£60,000 range.

Source: GOV.UK: High Income Child Benefit Charge

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For 2026/27, Class 4 National Insurance for the self-employed charges 6% on profits between the lower profits limit of £12,570 and the upper profits limit of £50,270, and 2% on any profit above £50,270, so on £60,000 of profits the band from £12,570 to £50,270 is charged at 6% and the remaining £9,730 above £50,270 is charged at 2%, matching the correct option exactly. The option applying a flat 6% to the whole £60,000 is wrong because it ignores that profit below £12,570 is not charged at all and profit above £50,270 drops to the lower 2% rate rather than staying at 6%. The option citing a 9% main rate is wrong because 9% was an earlier rate that has since been reduced to 6% for the main Class 4 band. The option claiming no charge above the upper profits limit is wrong because profit above that limit is still charged, just at the reduced 2% rate rather than being exempt.

Source: GOV.UK: Self-employed National Insurance rates — Class 4 contributions

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Class 1 employer (secondary) National Insurance for 2026/27 uses its own, lower secondary threshold of £96 per week, above which employers pay a flat 15% with no upper limit at which the rate steps down, so on £2,000 of weekly pay the employer pays 15% on everything above £96, matching the first option. The option claiming employer contributions stop above the Upper Earnings Limit is wrong because the Upper Earnings Limit governs only where the employee's own rate drops from 8% to 2%; it has no equivalent ceiling for the employer's flat-rate charge, which keeps applying at 15% however high pay goes. The option applying the employee's tiered 8%/2% structure to the employer is wrong because employer contributions use a single flat rate above their own threshold, not a two-tier structure. The option using £242 as the employer's starting threshold is wrong because £242 per week is the employee's Primary Threshold; the employer's secondary threshold is the separate, lower figure of £96 per week.

Source: GOV.UK: Rates and thresholds for employers 2026 to 2027 — Class 1 National Insurance

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From 6 April 2026 the government raised the ordinary dividend rate from 8.75% to 10.75% and the upper (higher rate band) dividend rate from 33.75% to 35.75%, a 2 percentage point rise on each, while leaving the additional rate unchanged at 39.35%, so a shareholder whose dividend income sits in the higher rate band in both years sees their rate rise by exactly 2 percentage points, matching the second option. The option claiming no change occurred is wrong because 8.75% and 33.75% were the rates that applied only up to the 2025/26 tax year, before this rise took effect. The option describing a fall to 31.75% is wrong because the rate change was an increase, not a reduction, and moved in the opposite direction from what this option describes. The option claiming the dividend allowance was abolished is wrong because the £500 dividend allowance itself was untouched by this change; only the rates charged on dividend income above the allowance increased.

Source: GOV.UK: Changes to tax rates for property, savings and dividend income

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The government staggered these changes: the dividend rate rise took effect from 6 April 2026, but the matching 2 percentage point increases to savings income tax rates and the new property income tax rates were announced to take effect a year later, from 6 April 2027, so for the 2026/27 tax year covered by this return the previous, lower savings and property rates still apply, exactly as the correct option describes. The option claiming all three changes started together on 6 April 2026 is wrong because only the dividend rate rise took effect on that date; savings and property changes were deliberately deferred by a further year. The option claiming the changes were cancelled is wrong because they remain scheduled to take effect from 6 April 2027, not abandoned. The option describing retroactive application from 6 April 2025 is wrong both on direction and date: the changes are prospective and take effect after the dividend change, not before it.

Source: GOV.UK: Changes to tax rates for property, savings and dividend income

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HMRC's adjusted net income calculation requires relief-at-source pension contributions to be grossed up by adding back the basic rate tax relief the provider already claimed, so a £4,000 net contribution becomes £5,000 once grossed up, and that £5,000 grossed-up figure — not the £4,000 actually paid — is what gets deducted from net income, taking £108,000 down to £103,000, exactly as the correct option describes. The option ignoring the contribution entirely is wrong because relief-at-source contributions are explicitly included in the adjusted net income adjustment precisely to extend basic rate relief into a reduction of adjusted net income for Personal Allowance taper purposes. The option deducting only the £4,000 net amount is wrong because it skips the required grossing-up step, understating the true reduction to adjusted net income. The option claiming the contribution increases adjusted net income has the direction backwards; pension contributions reduce adjusted net income, they do not add to it.

Source: GOV.UK: Adjusted net income guidance — pension contributions and Gift Aid

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Under Gift Aid, a charity reclaims basic rate tax on a donation, grossing up the £100 net gift to £125 (£100 x 100/80); for a taxpayer whose income sits above the basic rate band, HMRC gives the extra relief above basic rate not by cash refund on the net amount but by extending both the basic rate and higher rate bands by the full £125 grossed-up figure, so £125 that would have been taxed at 40% is instead taxed at only 20%, a 20 percentage point saving worth £25, which the taxpayer claims back through Self Assessment. The option claiming the charity's reclaim already delivers the full higher-rate benefit is wrong because the charity can only reclaim the basic rate portion; any relief above that rate must be claimed personally by the donor. The option requiring the grossed-up amount to be added to taxable income has the mechanism backwards: the relief works by expanding the rate bands the donor benefits from, not by increasing their income figure. The option denying any grossing up because the gift was paid net is wrong because Gift Aid donations are always treated as if grossed up at the basic rate for tax relief purposes, regardless of whether the gift itself was handed over net or gross.

Source: GOV.UK: Tax relief when you donate to a charity — Gift Aid; HMRC Self Assessment Helpsheet HS342 (Charitable giving)

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The Rent a Room Scheme lets someone letting furnished accommodation in their only or main home earn up to £7,500 a year tax-free (or £3,750 each if the income is shared between joint owners, not halved simply because income is high); since £6,000 is below the £7,500 limit and there is no other letting income, the exemption applies automatically without the individual needing to submit a claim, unless they instead choose to opt out and be taxed on income less actual expenses. The option restricting the scheme to unfurnished lettings is wrong because the Rent a Room Scheme specifically applies to furnished accommodation; it is not a furnished-versus-unfurnished distinction that removes the £7,500 limit. The option allowing both the Rent a Room limit and the property income allowance together is wrong because HMRC does not allow the property allowance to be claimed on income that is already covered by, or eligible for, Rent a Room relief; the two are mutually exclusive on the same income. The option halving relief once income passes £3,750 is wrong because £3,750 is only relevant when the income is split between two or more people sharing the same source, not a scaling-down threshold that applies to a sole recipient.

Source: GOV.UK: Rent a room in your home

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Student loan repayments are charged at 9% only on income above the borrower's own plan-specific threshold, not on gross salary as a whole, so the size of the repayment depends entirely on how much of the £30,000 salary sits above each threshold: the Plan 2 graduate has only £615 above their £29,385 threshold, producing a repayment of roughly £55 a year, while the Plan 5 graduate has £5,000 above their much lower £25,000 threshold, producing a repayment of £450 a year — far more than the Plan 2 graduate, matching the correct option. The option claiming both graduates repay the same amount ignores that the 9% rate applies only above each plan's threshold, not to the full salary. The option claiming Plan 2 produces a larger repayment gets the comparison backwards, since Plan 2's higher threshold shields more of the salary from the charge. The option claiming neither graduate repays anything is wrong because £30,000 exceeds both plans' thresholds, so both graduates have at least some income exposed to the 9% rate; there is no separate £50,000 threshold that exempts them.

Source: GOV.UK: Repaying your student loan — what you'll repay

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The tapered annual allowance applies where threshold income exceeds £200,000 AND adjusted income exceeds £260,000; here threshold income of £210,000 clears the £200,000 gateway and adjusted income of £280,000 clears the £260,000 gateway, so the taper applies. The standard £60,000 annual allowance is then reduced by £1 for every £2 that adjusted income exceeds £260,000: the £20,000 excess produces a £10,000 reduction, leaving an annual allowance of £50,000, down to a statutory floor of £10,000 if the reduction would otherwise go further. The option treating £280,000 as the trigger point is wrong because the taper's adjusted income gateway is £260,000, not £280,000. The option assuming the minimum £10,000 applies is wrong because the taper only reduces the allowance by £10,000 in this case, well above the £10,000 floor, not down to it. The option requiring threshold income itself to exceed £260,000 is wrong because the two gateways use different figures: threshold income only needs to exceed £200,000, while it is adjusted income that must exceed £260,000 for the taper to bite.

Source: GOV.UK: Tax on your private pension contributions — annual allowance and tapered annual allowance

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Scottish Income Tax applies its own set of bands and rates to the non-savings, non-dividend income of Scottish taxpayers; for 2026/27 income from £43,663 to £75,000 falls within the Scottish Higher Rate band and is charged at 42%, two percentage points above the 40% Higher Rate that applies to the equivalent band of non-savings, non-dividend income for a taxpayer resident elsewhere in the UK, matching the correct option. The option claiming the same 40% rate applies is wrong because Scottish rates diverge from the rest of the UK specifically on earned and other non-savings, non-dividend income, which is exactly the category described here. The option extending the 42% rate to dividend and savings income is wrong because Scottish Income Tax rates and bands apply only to non-savings, non-dividend income; savings interest and dividends are taxed at the same rates UK-wide regardless of where the taxpayer lives. The option placing this income in the Scottish Basic Rate band is wrong because, despite Scotland's extra bands, £43,663-£75,000 sits within the Scottish Higher Rate band, not the lower Basic Rate band that ends well before that range.

Source: GOV.UK: Scottish Income Tax

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Class 1A National Insurance is charged on the cash equivalent of most taxable benefits an employer provides, at the same 15% rate as the employer's Class 1 secondary rate, applied to the full value of the benefit with no threshold or lower limit reducing the chargeable amount; for an £8,000 benefit, that means £8,000 x 15% is due, exactly as the correct option describes. The option applying a £5,000 secondary threshold is wrong because that threshold governs ordinary Class 1 secondary contributions on cash earnings, not Class 1A, which has no equivalent threshold at all. The option applying the employee's tiered 8%/2% Class 1 rates is wrong because Class 1A is an employer-only charge calculated at a single flat rate, not the two-tier structure used for employee contributions. The option making Class 1A conditional on the employee's total pay exceeding the Upper Earnings Limit is wrong because Class 1A liability depends solely on the value of the benefit provided, independent of the employee's own earnings or National Insurance position.

Source: GOV.UK: CWG5 — Class 1A National Insurance contributions on benefits in kind, 2026 to 2027

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HMRC values a company car benefit by multiplying the car's P11D value (broadly its list price plus most accessories) by an 'appropriate percentage' that is set according to the car's CO2 emissions, with fully electric and very low-emission cars using their electric-only range to place them in the lowest percentage bands, so a lower-emission or electric car produces a smaller taxable benefit even on an identical list price, matching the correct option. The option describing a fixed flat amount for every car is wrong because the appropriate percentage varies specifically to reflect each car's emissions profile, producing different taxable values for different cars. The option taxing the full P11D value with no percentage reduction is wrong because the percentage step is exactly what scales the P11D value down to the actual chargeable benefit; without it, every company car would be taxed identically regardless of emissions. The option basing the value solely on business mileage is wrong because the benefit-in-kind charge is for the availability of private use, not a mileage-based calculation, and business mileage does not itself determine the taxable amount.

Source: GOV.UK: Expenses and benefits: company cars; GOV.UK: Calculate tax on employees' company cars

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HMRC's late Self Assessment filing penalties escalate in stages: an initial £100 flat penalty applies as soon as the 31 January deadline is missed, even if no tax is owed; once the return is 3 months late, daily penalties of £10 accrue, capped at a maximum of £900; once it reaches 6 months late, a further penalty of 5% of the tax due or £300 (whichever is greater) is charged; and at 7 months late, all of those stages have already been triggered, so the correct option's description of the £100 penalty, the daily-penalty stage, and the 5%-or-£300 stage having all applied is accurate. The option requiring no penalty as long as tax is eventually paid is wrong because these are filing penalties, triggered by the return being late, entirely separate from any late-payment penalties or interest on the tax itself. The option describing only a single flat £100 penalty regardless of delay length is wrong because the £100 is just the first stage; further daily and percentage-based penalties accrue the longer the return remains outstanding. The option describing a single one-off 5% charge is wrong because it ignores the earlier £100 flat penalty and the daily penalty stage that both precede and accompany the 5%-or-£300 charge.

Source: GOV.UK: Self Assessment tax returns — Penalties

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On the normal cumulative PAYE basis, an employee's tax is worked out using their total pay and total allowance used so far in the tax year, so unused allowance from an earlier period rolls forward into later periods; on a Week 1/Month 1 (non-cumulative) basis, by contrast, HMRC ignores everything paid and taxed earlier in the tax year and instead calculates each period's tax using only that single week's or month's slice of the Personal Allowance and bands, as if that pay period stood alone, which is exactly what the correct option describes. The option claiming it applies a higher rate as a penalty is wrong because the non-cumulative basis does not change the rates or bands used, only the period over which allowance and income are assessed; any over- or under-payment that results is incidental, not a deliberate penalty. The option claiming it gives a larger Personal Allowance is wrong because the 1257L figure represents the same annual allowance divided the normal way into weekly or monthly slices; W1/M1 does not add any extra allowance. The option claiming it has no practical effect is wrong because ignoring prior pay and tax can produce a materially different, and often incorrect, result compared with the cumulative basis until HMRC issues a corrected code.

Source: GOV.UK: Emergency tax codes

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A valid salary sacrifice arrangement contractually reduces the employee's cash earnings before National Insurance is worked out, so the sacrificed amount falls outside the earnings on which both the employee's Class 1 contributions and the employer's Class 1 secondary contributions are calculated, meaning both parties pay National Insurance on a lower figure than before the sacrifice, exactly as the correct option describes. The option claiming no effect on either party is wrong because the whole point of a valid sacrifice, given effect through a genuine contractual variation, is to reduce the cash earnings that both employee and employer National Insurance are charged on. The option claiming only the employer benefits is wrong because the employee's own Class 1 liability is calculated on the same reduced post-sacrifice earnings, so the employee's National Insurance also falls. The option restricting the effect to earnings above the Upper Earnings Limit is wrong because salary sacrifice reduces the National Insurance base at whatever earnings level the sacrifice occurs; it is not gated behind any particular earnings threshold.

Source: GOV.UK: Salary sacrifice and the effects on PAYE

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HMRC allows a Marriage Allowance claim to be backdated for up to four earlier tax years on top of a claim for the current year, provided the couple was eligible for the allowance in each of those earlier years, which is what the correct option states. The option denying any backdating is wrong because HMRC explicitly permits backdated claims covering several earlier years, not just the current year going forward. The option limiting backdating to one previous year is wrong because it confuses Marriage Allowance's own four-year backdating window with the unrelated one-year amendment window that applies to correcting an already-filed Self Assessment return. The option claiming backdating is unlimited is wrong because HMRC caps how far back a claim can reach at four tax years; eligibility in years beyond that window cannot be claimed for, however long the couple was married or in a civil partnership.

Source: GOV.UK: Marriage Allowance — how it works

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The starting rate for savings offers up to £5,000 of savings interest at 0%, but that £5,000 band is reduced pound for pound by any non-savings income (such as wages or pension income) that sits above the Personal Allowance; here £14,000 of non-savings income exceeds the £12,570 Personal Allowance by £1,430, so the £5,000 band shrinks to £3,570, meaning £3,570 of the £4,000 savings interest can use the starting rate band, with this calculation done separately from, and before, the Personal Savings Allowance is applied to whatever interest is left. The option claiming the band is undiminished until non-savings income reaches £50,270 is wrong because the reduction is measured against the Personal Allowance of £12,570, not the much higher basic rate threshold. The option claiming the band disappears entirely once any non-savings income exceeds the Personal Allowance is wrong because the reduction is pound for pound and gradual, not an all-or-nothing cut-off; the band only reaches zero once non-savings income reaches £17,570. The option claiming savings income itself reduces the band is wrong because it is non-savings income, not the savings interest being assessed, that erodes the starting rate band.

Source: GOV.UK: Tax on savings interest — starting rate for savings

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Married Couple's Allowance is available here because at least one partner was born before 6 April 1935, exactly the birth-date condition that separates it from Marriage Allowance, which is only available where neither partner was born before that date. Unlike the Personal Allowance, Married Couple's Allowance does not reduce taxable income directly; instead HMRC applies it as a 'tax reducer', taking a fixed 10% of the allowance amount straight off the tax bill itself, which is what the correct option describes. The option treating it as an addition to the couple's combined Personal Allowance is wrong because that describes how an income-based allowance works, not how this specific relief is calculated; Married Couple's Allowance never changes the income figure used to calculate tax. The option describing a direct cash payment separate from the tax calculation is wrong because the relief is given through the tax system itself, via Self Assessment or an adjusted PAYE code, not as a standalone payment. The option describing an extended higher rate threshold is wrong because that describes how Gift Aid's higher-rate relief works, not Married Couple's Allowance, which always operates as a flat-rate reduction in the tax bill regardless of the recipient's marginal rate.

Source: GOV.UK: Married Couple's Allowance

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HMRC's Gift Aid carry-back rule lets a donor elect, in their original Self Assessment return for the earlier year and only if that return is submitted by its filing deadline, to treat a donation made after that year ended as if it had been made in the earlier year instead — exactly why a taxpayer who was higher rate in 2026/27 but expects to drop to basic rate in 2027/28 would want to use it, since carrying the donation back preserves the higher-rate relief that would otherwise be lost. The election also requires that enough tax was actually paid in the earlier year to cover what the charity will reclaim on the donation; a donor who paid too little tax in that year cannot carry back an amount exceeding that ceiling. The option claiming this happens automatically is wrong because carry-back is never automatic; it requires a specific election made by the taxpayer within the return itself. The option describing an amendment made after the deadline is wrong because carry-back can only be claimed in the original return filed by the deadline, not in a later amendment once that deadline has passed. The option requiring the relief to stay in the year the donation was physically paid is wrong because the entire purpose of the carry-back election is to override the default year of relief, which is exactly what a carry-back claim changes.

Source: GOV.UK: Tax relief when you donate to a charity — Gift Aid; HMRC Self Assessment Helpsheet HS342 (Charitable giving)

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Because the 2025/26 bill was £4,000 — well above the £1,000 threshold below which payments on account aren't required — and none of it was collected at source, well below the 80%-collected-at-source threshold that would also exempt the taxpayer, payments on account apply in full. Each payment on account is set at half of the previous year's Self Assessment liability, so two payments of £2,000 each fall due on 31 January 2027 and 31 July 2027, with any difference between those payments and the actual 2026/27 liability settled through a balancing payment once that liability is finalised — precisely what the correct option describes. The option requiring the full £4,000-based amount in one lump sum is wrong both on amount, since payments on account split the liability in half rather than demanding the whole amount at once, and on the threshold, since £1,000 is the minimum bill size that triggers payments on account, not a point above which a single payment applies instead. The option describing two payments of the full £4,000 each is wrong because it ignores that each payment on account is only half of the prior year's liability, not the full amount repeated twice. The option claiming no payments on account are required is wrong because it inverts the 80%-collected-at-source exemption: this taxpayer had 0% collected at source, far below 80%, so the exemption does not apply and payments on account are required.

Source: GOV.UK: Understand your Self Assessment tax bill — Payments on account

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Under a net pay arrangement, pension contributions come out of pay before Income Tax is calculated, so a higher rate taxpayer's full 40% relief is built in automatically through payroll with nothing further to claim. Under relief at source, the pension provider can only reclaim basic rate tax directly from HMRC and add it to the pot; the extra relief between basic rate and higher (or additional) rate is not applied automatically, and the taxpayer must claim it themselves, typically through Self Assessment or by contacting HMRC directly, which is exactly the contrast the correct option describes. The option claiming both scheme types handle full relief automatically is wrong because it ignores that relief at source structurally cannot deliver more than basic rate relief through the contribution mechanism itself. The option reversing which scheme requires the extra claim has the mechanism backwards: it is relief at source, not net pay, that leaves higher-rate relief for the taxpayer to claim personally. The option claiming both scheme types always require a separate claim above basic rate is wrong because net pay arrangements give full marginal-rate relief automatically with no separate claim needed at any rate band.

Source: GOV.UK / Low Incomes Tax Reform Group: How tax relief is given on pension contributions

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Basis period reform replaced the old rule — under which a trader's taxable profit for a tax year was normally the profit of whichever accounting period ended within that tax year — with a 'tax year basis', under which profit for a tax year is the profit actually arising in that tax year itself, 6 April to 5 April, regardless of the trader's own accounting date. A trader who still draws up accounts to 30 June must now apportion profits from two overlapping accounting periods to build up the tax-year figure, exactly as the correct option describes, rather than simply using one accounting period's profit as before. The option requiring the trader to change their accounting date to 5 April is wrong because the reform does not force any change to a business's own accounting date; a trader may keep a non-tax-year accounting date and simply apportion profits each year instead. The option claiming nothing has changed for this trader is wrong because it is precisely traders whose accounting date does not already match the tax year, like this one, who are most affected by the switch to apportionment; traders already aligned to the tax year saw little practical change. The option describing profits assessed two years in arrears is wrong and describes something closer to the old, now-abolished basis period rules for a new business's opening years, not the current tax-year basis that applies from 2024/25 onwards.

Source: GOV.UK / HMRC: Basis period reform — tax year basis for the self-employed

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EIS income tax relief is given at 30% of the amount subscribed for qualifying shares — £6,000 on a £20,000 investment here — but that relief is conditional on holding the shares for at least 3 years from the date of issue; disposing of them at 18 months, well short of that 3-year minimum, causes the income tax relief already claimed to be withdrawn, exactly as the correct option describes. The option citing 50% relief is wrong because 50% is the rate that applies under the Seed Enterprise Investment Scheme (SEIS) for very early-stage companies, not the standard EIS rate, which is 30%. The option claiming the 3-year rule only affects the Capital Gains Tax exemption, never the income tax relief itself, is wrong because the minimum holding period is a condition of the income tax relief too; breaking it claws back the income tax relief in addition to losing the CGT exemption on any gain. The option requiring the shares to already have been held for 3 years before relief can be claimed at all is wrong because EIS income tax relief can be claimed as soon as the shares are issued and the company provides the compliance certificate; the 3-year holding period is a condition for keeping that relief, not a waiting period before claiming it in the first place.

Source: GOV.UK: Enterprise Investment Scheme — Income Tax relief

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HMRC's Approved Mileage Allowance Payment scheme sets a tiered rate for cars: 55p per mile for the first 10,000 business miles in a tax year, dropping to 25p per mile for every mile after that. Here the employer pays exactly at those tiered rates — 55p on the first 10,000 miles and 25p on the remaining 2,000 — so the total payment matches the total approved amount precisely, meaning there is no excess for HMRC to treat as a taxable benefit and no shortfall for the employee to claim Mileage Allowance Relief against, which is what the correct option describes. The option claiming two different rates can't be paid tax-free is wrong: the tiered structure, with the rate stepping down after 10,000 miles, is exactly how the approved scheme is designed to work, not a technical breach of some flat-rate requirement. The option requiring a separate Mileage Allowance Relief election is wrong because Mileage Allowance Relief only comes into play when an employer pays less than the approved amount, leaving a shortfall for the employee to claim; here the employer already paid the full approved amount directly, so there is no shortfall and nothing further to claim. The option treating the 25p paid on the final 2,000 miles as automatically taxable is wrong because 25p per mile is itself the approved rate for miles beyond the 10,000-mile threshold, not an excess over it; a taxable benefit only arises when the amount actually paid exceeds the approved amount, which does not happen here.

Source: GOV.UK: Rates and allowances — travel, mileage and fuel allowances; GOV.UK: Claim tax relief for your job expenses — Mileage Allowance Relief

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The £10,000 threshold is tested by whether the loan exceeded that amount at any point during the tax year, not by the closing balance alone; because the loan stood at £15,000 for at least part of the year, well above £10,000, a taxable benefit arises for the year even though it had fallen to £9,000 by the end. Under the default averaging method, HMRC takes the loan balance at the start of the tax year and the balance at the end, adds them together, and divides by two — here (£15,000 + £9,000) ÷ 2 = £12,000 — then multiplies that average by the official rate of interest set for the year to arrive at the cash equivalent taxable as a benefit, which is exactly what the correct option describes. The option finding no benefit at all is wrong because it looks only at the year-end balance and ignores that the loan exceeded the £10,000 threshold earlier in the year, which is what actually triggers the charge. The option using only the closing balance is wrong because the averaging method is based on the average of the opening and closing balances together, not the closing balance in isolation. The option requiring the precise day-by-day method is wrong because averaging is the default method that applies automatically; the precise method is only used if the employee elects for it, or HMRC's inspector decides to apply it instead, and a mid-year change in balance alone does not force that switch.

Source: GOV.UK: Rates and allowances — beneficial loan arrangements, HMRC official rates; HMRC Employment Income Manual EIM26221

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Overpayment relief lets a taxpayer reclaim tax overpaid because of a mistake in a return, through a free-standing written claim to HMRC, entirely separate from the ordinary 12-month window for amending a return or the enquiry window that follows filing; its own time limit runs for 4 years from the end of the relevant tax year. The 2022/23 tax year ended on 5 April 2023, so the 4-year overpayment relief window runs until 5 April 2027, comfortably covering a claim made in June 2026, which is why the correct option is right. The option claiming no route remains once the amendment and enquiry windows have closed is wrong because overpayment relief exists precisely as a further, later-running route for correcting mistakes once those earlier windows are shut. The option requiring HMRC to reopen and amend the original return at its own discretion is wrong because overpayment relief works through the taxpayer making their own free-standing claim, not by asking HMRC to exercise a discretionary power over the original return. The option applying the same 12-month time limit as ordinary amendments is wrong because overpayment relief has its own, separate 4-year time limit; it is not tied to the much shorter amendment window.

Source: GOV.UK: HMRC Self Assessment Claims Manual — Overpayment relief: time limits (SACM12155)

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The remittance basis for non-UK domiciled individuals was abolished from 6 April 2025 and replaced with the Foreign Income and Gains (FIG) regime, under which a person who becomes UK resident after at least 10 consecutive tax years of non-UK residence can claim relief from UK tax on their foreign income and gains for up to 4 consecutive UK tax years; having been non-resident for the prior 12 consecutive years comfortably clears that 10-year requirement. Making the claim, however, comes at a cost: a qualifying new resident who claims FIG relief loses their entitlement to the UK Personal Allowance for the tax years the claim covers, which is exactly what the correct option describes. The option claiming the old remittance basis is still available is wrong because the remittance basis was abolished for UK resident individuals from 6 April 2025, with the FIG regime taking its place rather than continuing alongside it. The option claiming no replacement relief exists at all is wrong because the FIG regime is precisely the replacement relief introduced for new residents who meet the 10-year non-residence condition. The option claiming the relief has no effect on the Personal Allowance is wrong because giving up the Personal Allowance for the years claimed is a direct condition attached to making a FIG regime claim, not an unrelated side effect.

Source: GOV.UK / HMRC: Reform of the taxation of non-UK domiciled individuals — the Foreign Income and Gains (FIG) regime

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Post-employment notice pay (PENP) represents the basic pay an employee would have earned had they worked their notice, and it is chargeable to Income Tax as general earnings in full under section 402D ITEPA 2003, attracting ordinary Class 1 NICs from both employer and employee just as if it were a normal salary payment; it never benefits from the separate £30,000 threshold in section 403 ITEPA 2003. The remaining, genuinely non-contractual part of the termination award is what the £30,000 exemption applies to, so of the £36,000 ex-gratia payment, £30,000 is Income-Tax-free and the £6,000 excess is taxed in full; since 6 April 2020, that excess over £30,000 also attracts employer-only Class 1A NICs, with no employee NIC charge on it. The option treating the full £45,000 as one exempt-then-taxed pool is wrong because it ignores that PENP is carved out of the threshold entirely rather than being added to the ex-gratia amount before applying the exemption. The option extending the exemption to the PENP amount is wrong for the same reason: PENP is taxed as earnings regardless of the £30,000 threshold, not sheltered by it. The option charging employee Class 1 NICs on the £6,000 excess is wrong because Parliament deliberately confined the NIC charge on that excess to an employer-only Class 1A liability, distinct from the ordinary Class 1 NICs that do apply, in full, to the PENP element.

Source: GOV.UK: Tax on termination payments; HMRC Employment Income Manual EIM13876 (post-employment notice pay) and EIM13505 (£30,000 threshold)

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The Furnished Holiday Lettings rules ceased to apply for Income Tax (and Capital Gains Tax) purposes from tax years commencing on or after 6 April 2025, so a property that previously qualified as an FHL now simply forms part of the owner's UK (or overseas) property business and is taxed under the same rules as any other residential let, with no special FHL treatment surviving the change. In particular, FHL businesses used to be entitled to capital allowances on plant and machinery such as furniture and white goods, a benefit ordinary property lettings have never had, and that entitlement ends for periods from the abolition date onward. The option describing grandfathering for pre-2025 properties is wrong: the repeal applies by tax year to every property, regardless of when it first qualified as an FHL, with no transitional carve-out preserving the old treatment for existing owners. The option confining the abolition to Capital Gains Tax is wrong because the repeal removed the FHL regime for both Income Tax and Capital Gains Tax from the same commencement point, not Income Tax alone continuing unaffected. The option claiming automatic trade treatment and Business Asset Disposal Relief eligibility going forward is wrong because the repeal does the opposite: it removes the deeming of an FHL business as a trade, which is precisely what previously gave access to reliefs like Business Asset Disposal Relief, so the property is now treated as an ordinary investment letting rather than a trade.

Source: HMRC Property Income Manual PIM4170/PIM4175 and Capital Gains Manual CG73505 (Repeal of Furnished Holiday Lettings rules)

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To carry forward unused Annual Allowance from a particular one of the previous three tax years, HMRC's rules require that the individual was a member of a registered pension scheme at some point during that specific earlier tax year; membership is tested year by year against the year being carried forward from, not against the three-year window as a whole. Here that condition is met for 2023/24 and 2025/26, so unused allowance from those two years is available, but it fails for 2024/25, since the individual had no registered pension scheme membership at any point in that year, so no unused allowance from 2024/25 can be carried forward regardless of how much allowance went unused then. The option requiring unbroken membership across all three years is wrong because each year is assessed independently; a gap in one year blocks carry-forward from that year alone, it does not disqualify the otherwise-available years either side of it. The option applying the membership test only to the current year is wrong because the requirement is specifically about membership during the earlier year being drawn from, not about the year in which the contribution is finally made. The option requiring a formal claim is wrong because carry-forward is automatic: an individual does not need to make any claim to HMRC, and does not need to show it on their tax return unless an Annual Allowance charge actually becomes due.

Source: HMRC Pensions Tax Manual PTM055100 (Annual allowance: carry forward: general) and GOV.UK: Check if you have unused annual allowances on your pension savings

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Under CIS, a contractor deducts the applicable rate only from the labour element of a contract payment, having first excluded any amount the subcontractor actually incurred for materials; here that is 20% (the standard rate for a subcontractor who is registered for CIS and successfully verified) of the £6,000 labour element, giving £1,200, so the subcontractor receives £10,000 minus £1,200, i.e. £8,800, and the contractor pays the £1,200 to HMRC. That deduction is not a final tax charge but a payment on account, set against the subcontractor's own Income Tax and Class 4 NICs liability when they complete their Self Assessment return, with any difference settled at that point. The option applying the rate to the full £10,000 is wrong because materials genuinely incurred by the subcontractor are excluded from the deduction calculation, not folded into it. The option using 30% is wrong because 30% is the higher 'un-matched' rate that applies only to subcontractors who are not registered for CIS or who cannot be verified, not the default rate for a registered, verified subcontractor like this one. The option treating the £1,200 as a final tax charge is wrong because CIS deductions are explicitly payments on account of the subcontractor's eventual Income Tax and Class 4 NICs bill, not a substitute for filing and settling a Self Assessment return.

Source: GOV.UK: What you must do as a CIS contractor — Make deductions and pay subcontractors; HMRC CISR71020 and CISR13080 (rate of deduction)

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A company whose only director is also its sole employee liable for secondary Class 1 NICs is excluded from Employment Allowance outright, which rules out Company A. The exclusion is not cured simply by taking on a second employee: if the director's earnings exceed the secondary threshold while every other employee's earnings fall below it, HMRC's rules still treat the company as ineligible, because the director remains, in substance, the only person the company is paying above the threshold; that is Company B's exact position here, so it is excluded too. Eligibility for a single-director company only arises where at least one other employee, besides the director, is also paid at or above the secondary threshold at some point. The option treating head-count alone as sufficient for Company B is wrong because eligibility turns on how much each person is paid relative to the secondary threshold, not on simply having more than one person on the payroll. The option attributing both companies' eligibility to the 2025 removal of the £100,000 employer-NIC-liability cap is wrong because that change only widened eligibility for larger employers; it left the separate single-director exclusion rule fully intact. The option finding Company A eligible is wrong because a sole director who is their company's only employee above the secondary threshold is precisely the scenario the exclusion was written to catch, not an ordinary eligible small business.

Source: HMRC National Insurance Manual NIM06545 (Employment Allowance: single director limited companies) and GOV.UK: Employment Allowance — Check if you're eligible