Schedule C Loss Carryforward: Limits, NOL Rules, and Reporting

A Schedule C loss carryforward is the portion of a self-employment loss you could not deduct this year because a federal limitation blocked it, saved for use in a future year. Which carryforward you end up with depends on which limitation did the blocking: the at-risk rules, the passive activity rules, or the excess business loss cap that converts leftover loss into a net operating loss. Each type sits on a different form, releases under different conditions, and comes with different strings attached when you finally claim it.

First, the Activity Has to Be a Business

None of the carryforward rules apply if the IRS treats your activity as a hobby. Under Section 183, an activity not engaged in for profit cannot generate deductions beyond the gross income it produces, and it cannot create a loss to carry anywhere.¹

The safe harbor is a rebuttable presumption of profit motive if the activity shows a profit in at least three of the last five tax years.² Miss that and you can still prove profit motive through how you run the operation, your expertise, and the time you put in, but the burden is on you. Everything below assumes you clear that bar.

The Three Limitations, in Order

A Schedule C loss runs through a fixed sequence: at-risk first, passive activity second, excess business loss third. Each test starts with whatever survived the previous one, and each blocked amount becomes a different kind of carryforward.

At-Risk Limitation

Section 465 caps your deductible loss at the amount you actually have at economic risk in the business. That generally includes cash you invested, the adjusted basis of property you contributed, and borrowed money for which you are personally liable. Nonrecourse debt normally does not count.³

Any loss above your at-risk amount is suspended indefinitely and tracked on Form 6198.⁴ It becomes deductible only when your at-risk amount goes back up, typically because you put in more money or the activity generates income in a later year. This is not an NOL. It stays tied to the specific activity.

Passive Activity Loss Limitation

What survives the at-risk test then meets Section 469. If your Schedule C business is passive, meaning you do not materially participate, the loss can only offset income from your other passive activities. It cannot touch wages, interest, dividends, or nonpassive business income.⁵

Most sole proprietors clear this hurdle easily. The IRS recognizes seven material participation tests, and satisfying any one makes the activity nonpassive. The common one is more than 500 hours of work in the activity during the year.⁶ If you cannot meet any test, the loss beyond your passive income is suspended on Form 8582 and carries forward indefinitely. It gets released when you generate enough passive income later or when you dispose of your entire interest in a fully taxable transaction.⁷

Excess Business Loss Limitation

The loss that clears both prior tests then faces Section 461(l). This provision caps the total net business loss a noncorporate taxpayer can deduct in a single year. Business losses across all your activities, minus your total business income, cannot exceed an annual threshold. Anything above the cap is reclassified as a net operating loss carryforward.⁸

For 2026, the threshold under Revenue Procedure 2025-32 is $256,000 for single filers and $512,000 for joint filers, down from the 2025 figures of $313,000 and $626,000 because recent legislation reset the inflation baseline. The calculation goes on Form 461. The excess business loss rule was originally scheduled to sunset after 2028 but is now permanent under the One Big Beautiful Bill Act.⁹

How the NOL Amount Is Actually Calculated

The NOL is not the negative number at the bottom of your 1040. The tax code strips out personal and nonbusiness items so what carries forward reflects only the business economic loss. When you compute the NOL, you have to make several adjustments:¹⁰

Add back the portion of your standard or itemized deductions that exceeds your nonbusiness income. Nonbusiness deductions cannot create or enlarge an NOL.
Add back nonbusiness capital losses beyond nonbusiness capital gains.
Remove any NOL deduction claimed from a prior year.
Remove the Section 199A qualified business income deduction.

The worksheet in Publication 536 and Schedule A of Form 1045 walks through the mechanics.¹¹ The end result is usually smaller than the raw negative on your return.

Using the NOL in Future Years

NOLs arising in tax years after 2017 carry forward indefinitely. There is no expiration.¹²

The tradeoff is the 80% cap. In any carryforward year, your NOL deduction cannot exceed 80% of taxable income figured before the NOL deduction and before the Section 199A deduction. You will always owe tax on at least 20% of the year’s income when you draw on an NOL, and whatever the cap prevents you from using rolls to the next year.¹²

Carryback is generally gone. The only exception for Schedule C filers is a farming loss, which can still be carried back two years.¹²

Where Each Carryforward Goes on Your Return

Putting a carryforward on the wrong form is one of the more common filing errors, and each type has its own place.

An NOL deduction goes on Schedule 1 (Form 1040), Part I, Line 8a as a negative number, reducing your AGI.¹³ Attach a statement showing the origin year of the loss, how you computed it, how much you have used in each intervening year, and what remains. Without that statement, expect a notice or a disallowed deduction.

A suspended passive activity loss does not touch Schedule 1. You bring it forward on the current year’s Form 8582, where it offsets any current-year passive income; leftover amounts stay suspended.⁷

A suspended at-risk loss stays on Form 6198. When your at-risk amount rises in a later year, the previously blocked loss flows through the form and becomes deductible up to the new basis.⁴

Two Traps: Self-Employment Tax and QBI

An NOL carryforward does not reduce self-employment tax. SE tax is calculated on current-year net earnings from self-employment, and the statute defining those earnings excludes the NOL deduction. If you show $40,000 of Schedule C profit in a year you also apply a $40,000 NOL, your income tax may fall to near zero, but you still owe SE tax on the full $40,000.

The Section 199A qualified business income deduction interacts with carryforwards in a way that surprises people. While a loss is suspended by the at-risk, passive activity, or excess business loss rules, it is not counted in your QBI calculation for that year. When it is finally released, it comes through as a qualified net loss carryforward from that trade or business and reduces the QBI available for the 199A deduction in the release year.¹⁴ A large released loss can wipe out your QBI deduction for the year you claim it.

What Happens If You Close or Sell the Business

Suspended losses tied to the activity behave very differently from an NOL when the business ends.

If you dispose of your entire interest in a passive activity in a fully taxable transaction, all accumulated suspended passive losses are released at once and treated as nonpassive. They can then offset wages, investment income, or any other income on that year’s return. Partial dispositions do not trigger this release. A sale to a related party under Sections 267(b) or 707(b)(1) does not release the losses until the related party resells to an unrelated buyer. A gift transfers the suspended losses into the recipient’s basis and you lose the deduction. At death, the losses are deductible only to the extent they exceed the basis step-up.¹⁵

Suspended at-risk losses do not get the same automatic release. They come free only to the extent a sale or other event raises your at-risk amount. Sell at a gain and the gain typically absorbs them. Walk away with nothing and the suspended amount may be permanently lost.

An NOL carryforward is different. It is not tied to a specific activity, so closing the business has no effect on it. The NOL stays available indefinitely against income from any source, subject to the 80% cap in each year you use it.

Records You Need to Keep

The IRS does not track your remaining NOL for you. If you claim a carryforward deduction years later and cannot document it, expect it to be disallowed.

Keep the original loss-year return, the Schedule C, and every supporting form used to compute the limitation (Form 6198, Form 8582, Form 461). Keep the NOL computation worksheet showing every add-back. Maintain a running ledger by year with the original loss amount, taxable income before the NOL deduction, the 80% limitation, the deduction actually claimed, and the balance remaining.¹⁰

The retention window is not the usual three years. You must keep NOL records for three years after you either fully absorb the carryforward or it otherwise expires.¹⁶ A large NOL that takes ten years to use up means holding the origin-year file for at least thirteen. Losing those records is losing the deduction.

1
Office of the Law Revision Counsel. 26 USC 183 – Activities Not Engaged in for Profit
2
Internal Revenue Service. Is Your Hobby a For-Profit Endeavor?
3
Office of the Law Revision Counsel. 26 US Code 465 – Deductions Limited to Amount at Risk
4
Internal Revenue Service. Instructions for Form 6198
5
Office of the Law Revision Counsel. 26 USC 469 – Passive Activity Losses and Credits Limited
6
Internal Revenue Service. Instructions for Form 8582 (2025) – Section: Tests for Individuals
7
Internal Revenue Service. About Form 8582, Passive Activity Loss Limitations
8
Office of the Law Revision Counsel. 26 US Code 461 – General Rule for Taxable Year of Deduction
9
Internal Revenue Service. Instructions for Form 461
10
Internal Revenue Service. Publication 536 – Net Operating Losses (NOLs) for Individuals, Estates, and Trusts
11
Internal Revenue Service. Form 1045 Application for Tentative Refund
12
Office of the Law Revision Counsel. 26 US Code 172 – Net Operating Loss Deduction
13
Internal Revenue Service. Schedule 1 (Form 1040) – Additional Income and Adjustments to Income
14
Internal Revenue Service. Instructions for Form 8995-A – Section: Qualified Business Income
15
Office of the Law Revision Counsel. 26 USC 469 – Passive Activity Losses and Credits Limited – Section: Dispositions of Entire Interest in Passive Activity
16
Internal Revenue Service. Instructions for Form 172