NOL Deductions Can Ease the Pain of Business Losses

Sarah B

For income tax purposes, a business loss generally occurs when a business’s deductions for the year exceed its revenue. Any business, whether new or established, can face losses. Fortunately, the net operating loss (NOL) deduction can turn the pain of a loss this year into tax savings for next year and, perhaps, beyond.


How to Qualify

Tax inequities can exist between businesses with stable income and those with fluctuating income. The NOL deduction helps address those inequities. It essentially lets the latter average out their income and losses over the years and pay tax accordingly.


For a business to qualify for the NOL deduction, the loss generally must be caused by deductions related to your business (Schedule C and F losses or Schedule K-1 losses from partnerships or S corporations), casualty and theft losses from a federally declared disaster, or rental property (Schedule E).


Determination of an NOL generally doesn’t include:


  • Capital losses in excess of capital gains,
  • Exclusion for gains from the sale or exchange of qualified small business stock,
  • Nonbusiness deductions in excess of nonbusiness income,
  • The NOL deduction, and
  • The Section 199A qualified business income deduction.


Individuals and C corporations are eligible for the NOL deduction. While partnerships and S corporations generally aren’t eligible, their partners and shareholders can claim individual NOLs based on their separate shares of business income and deductions.


Limits Apply

NOL deductions can’t offset more than 80% of taxable income for the year. Any excess NOLs can be carried forward indefinitely.


Suppose your NOL carryforward is more than your taxable income for the year you carry it to. If so, you may have an NOL carryover. That’s the excess of the NOL deduction over your modified taxable income for the carry-forward year. If your NOL deduction includes multiple NOLs, you must apply them against your modified taxable income in the same order you incurred them, beginning with the earliest.


“Excess” Business Losses

Under the Tax Cuts and Jobs Act (TCJA), an excess business loss limitation went into effect in 2021. That limitation applies at the partner or shareholder level, for partnerships or S corporations, after applying the outside basis, at-risk and passive activity loss limitations.


Under the excess business loss rule, noncorporate taxpayers’ business losses can offset only business-related income or gain, plus other income (such as salary, self-employment income, interest, dividends and capital gains) up to an inflation-adjusted threshold. For 2025, that threshold is $313,000, or $626,000 for married couples filing jointly. For 2026, the limit is reduced to $256,000 and $512,000, respectively. Any “excess” losses are carried forward and treated as NOLs.


Under the TCJA, the excess business loss limitation had been scheduled to expire after December 31, 2026. However, the Inflation Reduction Act extended it through 2028, and 2025 legislation has made it permanent.


Next Steps

When it comes to business losses, the rules are complex, especially the interaction between NOLs and other potential tax breaks. Contact the office for help charting your best path forward.

By Sarah Bolton January 7, 2026
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January 15 Employers: Deposit nonpayroll withheld income tax for December 2025 if the monthly deposit rule applies. Individuals: Pay the fourth installment of 2025 estimated taxes (Form 1040-ES) if not paying income tax through withholding or not paying sufficient income tax through withholding. February 2 Employers: File 2025 Form W-2 (Copy A) and transmittal Form W-3 with the Social Security Administration. Employers: File a 2025 return for federal unemployment taxes (Form 940) and pay any tax due if all the associated taxes weren’t deposited on time and in full. Employers: Report Social Security and Medicare taxes and income tax withholding for the fourth quarter of 2025 (Form 941) if all of the associated taxes due weren’t deposited on time and in full. Employers: Provide 2025 Form W-2 to employees. Businesses: Provide 2025 Form 1098, Form 1099-MISC (except for those with a February 18 deadline), Form 1099-NEC and Form W-2G to recipients. Individuals: File a 2025 income tax return (Form 1040 or Form 1040-SR) and pay the tax to avoid penalties for underpaying the January 15 installment of estimated taxes. February 10 Employers: File a 2025 return for federal unemployment taxes (Form 940) if all associated taxes due were deposited on time and in full. Employers: Report Social Security and Medicare taxes and income tax withholding for the fourth quarter of 2025 (Form 941) if all associated taxes due were deposited on time and in full. Individuals: Report January tip income of $20 or more to employers (Form 4070). 
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Starting in 2026, personal casualty loss deductions will no longer be limited to federally declared disasters. Certain state-declared disasters will also be eligible. For a disaster to qualify, the governor (or D.C. mayor) and the U.S. Treasury Secretary must agree that the damage is severe enough to apply these rules. Now more taxpayers affected by natural disasters or by fires, floods or explosions, regardless of the cause, may qualify.  Note that taxpayers can still claim personal casualty losses not attributable to federally or state-declared disasters, but only to the extent of any personal casualty gains. Need guidance? Contact the office for help.