For the 2025 U.S. federal tax year, a single taxpayer's aggregate trade or business deductions exceed aggregate trade or business gross income and gains by $400,000, an amount that exceeds the IRC Section 461(l) threshold applicable to single filers for 2025. Under IRC Section 461(l), what happens to the portion of this business loss that exceeds the threshold?
- The excess is permanently disallowed and may never be deducted in any future tax year, regardless of the taxpayer's business income in later years
- The excess is immediately deductible against the taxpayer's nonbusiness income for 2025 as long as the taxpayer materially participates in the business generating the loss
- The excess is carried back two years and applied against the taxpayer's business income in those prior years before any amount may be carried forward
- The excess is disallowed as a current-year business loss and is instead treated as a net operating loss carried forward to the following tax year, where it becomes subject to the separate NOL rules, including the 80%-of-taxable-income limitation on NOL deductions
Why D? And why not the others?
Correct answer: D. The excess is disallowed as a current-year business loss and is instead treated as a net operating loss carried forward to the following tax year, where it becomes subject to the separate NOL rules, including the 80%-of-taxable-income limitation on NOL deductions
IRC Section 461(l) disallows the portion of a noncorporate taxpayer's net aggregate business loss that exceeds the annually indexed threshold ($313,000 for a single filer for 2025) for the current tax year; rather than simply vanishing or offsetting nonbusiness income immediately, the disallowed excess is instead treated as part of the taxpayer's net operating loss and carried forward to the next tax year, where it is absorbed under the ordinary NOL rules of IRC Section 172, including the limitation that generally caps an NOL deduction at 80% of taxable income for the year it is used. The option describing permanent disallowance is wrong because the excess is converted into a usable NOL carryforward rather than being lost forever. The option allowing an immediate offset against nonbusiness income in the current year is wrong because that is precisely the excess amount Section 461(l) disallows for the current year regardless of material participation; the limitation applies even to a materially participating owner. The option describing a two-year carryback is wrong because Section 461(l) provides no carryback mechanism; the disallowed amount only carries forward as an NOL under the post-2017 NOL rules, which themselves generally disallow carrybacks.
Source: Instructions for Form 461 (2025), Limitation on Business Losses (irs.gov/pub/irs-pdf/i461.pdf)