Excess Business Loss
Estimate the individual §461(l) limit only after the business-loss rules that come before Form 461.
How much business loss can §461(l) defer?
For an individual, the excess is aggregate trade-or-business deductions minus aggregate trade-or-business income or gain minus the annual threshold, after earlier loss limitations. Employee W-2 wages do not enter either side of this calculation.
- 2026 threshold for this filing status: $256,000
- Married filing jointly receives twice the nonjoint threshold
- The disallowed excess enters the NOL system
Return facts
Enter the Form 461 amount after the confirmed limitations below.
Collected to show the statutory exclusion; wages do not reduce the excess loss.
Were the prior rules applied?
Where this estimate stops
Section 461(l) is applied after several other loss limitations, so a standalone gross-loss input can overstate the usable deduction. This tool is for individual/noncorporate returns, assumes the entered Form 461 aggregates already reflect entity and capital-item rules, and does not compute a later-year NOL deduction.
Questions
When is the excess-business-loss limit applied?
Apply basis, at-risk, and passive-activity limits first, then make the Form 461 capital-gain and capital-loss adjustments. This estimator suppresses its result until those steps are confirmed.
Do W-2 wages count as business income for §461(l)?
No. Section 461(l) and the Form 461 instructions disregard deductions, gross income, and gains from performing services as an employee.
Is an excess business loss lost?
No. The disallowed excess becomes an NOL carryforward for the following tax year. Later-year NOL use is a separate calculation.
Is §461(l) permanent?
P.L. 119-21 removed the January 1, 2029 sunset for tax years beginning after December 31, 2026. The limitation already applies for the 2025 and 2026 years offered here.
Related business-deduction tools
Sources & References
Primary references used for this content
IRC §461(l)(3) — excess-business-loss formula
Primary authority for §461(l), Form 461 ordering, annual thresholds, permanence, or NOL treatment
View on law.cornell.edu
IRC §461(l)(2) — NOL treatment
Primary authority for §461(l), Form 461 ordering, annual thresholds, permanence, or NOL treatment
View on law.cornell.edu
IRC §461(l)(3) — employee services excluded
Primary authority for §461(l), Form 461 ordering, annual thresholds, permanence, or NOL treatment
View on law.cornell.edu
Instructions for Form 461 — definition and employee services
Primary authority for §461(l), Form 461 ordering, annual thresholds, permanence, or NOL treatment
View on irs.gov
Instructions for Form 461 — ordering of limitations
Primary authority for §461(l), Form 461 ordering, annual thresholds, permanence, or NOL treatment
View on irs.gov
Instructions for Form 461 — NOL carryover
Primary authority for §461(l), Form 461 ordering, annual thresholds, permanence, or NOL treatment
View on irs.gov
Rev. Proc. 2024-40 — 2025 threshold
Primary authority for §461(l), Form 461 ordering, annual thresholds, permanence, or NOL treatment
View on irs.gov
Rev. Proc. 2025-32 — 2026 threshold
Primary authority for §461(l), Form 461 ordering, annual thresholds, permanence, or NOL treatment
View on irs.gov
P.L. 119-21 — §461(l) made permanent
Primary authority for §461(l), Form 461 ordering, annual thresholds, permanence, or NOL treatment
View on govinfo.gov
P.L. 119-21 — permanence effective date
Primary authority for §461(l), Form 461 ordering, annual thresholds, permanence, or NOL treatment
View on govinfo.gov
IRS Publication 536 — publication status
Primary authority for §461(l), Form 461 ordering, annual thresholds, permanence, or NOL treatment
View on irs.gov
Instructions for Form 172 — current NOL guidance
Primary authority for §461(l), Form 461 ordering, annual thresholds, permanence, or NOL treatment
View on irs.gov
✓Rules checked September 7, 2026 against IRC §461(l), current Form 461 and Form 172 instructions, Rev. Procs. 2024-40 and 2025-32, and P.L. 119-21.
Disclaimer: This calculator provides estimates for educational purposes only. Not tax, legal, or financial advice. Results may vary based on your specific circumstances. Consult a qualified CPA or tax professional for personalized guidance.