Carryforward losses on a federal tax return sit on three main forms depending on the type of loss: capital loss carryovers appear on Schedule D (Form 1040), net operating losses show up on Schedule 1 (Form 1040), and passive activity losses land on Form 8582. Smaller categories, including Section 179, qualified business income, charitable contributions, foreign tax credits, and the prior-year minimum tax credit, each have their own form. The actual dollar figure you enter almost always traces back to a worksheet or form filed with the prior year’s return, so locating a carryforward on this year’s return usually starts with last year’s paperwork.
Capital Loss Carryovers on Schedule D
Capital loss carryovers are the most common type individual filers deal with. When investment losses in a prior year exceeded gains, only $3,000 of the excess ($1,500 if married filing separately) could be deducted against other income, and whatever remained rolled into the next year.1Office of the Law Revision Counsel. 26 USC 1211 – Limitation on Capital Losses There is no expiration on individual capital loss carryovers; they keep rolling until absorbed.2Office of the Law Revision Counsel. 26 USC 1212 – Capital Loss Carrybacks and Carryovers
On the current year’s Schedule D, look in two places:
- Part I, Line 6 for the short-term capital loss carryover (assets held one year or less)
- Part II, Line 14 for the long-term capital loss carryover (assets held longer than one year)
Both amounts get combined with the year’s transactions in their respective categories, and after netting, Line 21 caps the current-year deduction at $3,000. Anything unused rolls forward again.3Internal Revenue Service. Schedule D (Form 1040) 2025
Where the Carryover Number Comes From
The figures on Lines 6 and 14 come from the Capital Loss Carryover Worksheet in the prior year’s Schedule D instructions, titled “Capital Loss Carryover Worksheet—Lines 6 and 14.”4Internal Revenue Service. Instructions for Schedule D (Form 1040) 2025 Tax software usually generates this worksheet automatically and saves it with the return.
Inside the worksheet, Line 8 is the short-term carryover and Line 13 is the long-term carryover. Those are the amounts to carry over. The other lines are intermediate steps in the math, not the final figures.5Internal Revenue Service. 2025 Instructions for Schedule D (Form 1040) – Capital Gains and Losses Without the worksheet, reconstructing the number requires the prior year’s Schedule D lines 7, 15, 16, and 21 along with that year’s taxable income.
Net Operating Loss Carryforwards on Schedule 1
Net operating losses arise when allowable business deductions exceed gross income for the year. For NOLs generated in tax years beginning after 2020, the loss carries forward only (with a narrow exception for certain farming losses). The carryforward is reported on Schedule 1 (Form 1040), Part I, Line 8a, entered as a negative number to reduce total income.6Internal Revenue Service. 2025 Schedule 1 (Form 1040)
An important limit: for NOLs arising after 2020, the deduction can only offset up to 80% of current-year taxable income. Whatever isn’t used continues rolling forward, with no expiration.
To compute the available amount, the IRS uses Form 172 (Net Operating Losses for Individuals, Estates, and Trusts). When claiming an NOL deduction on a carryforward year, attach a Form 172 for each NOL year to Form 1040.7Internal Revenue Service. Instructions for Form 172 (12/2024) Part II of Form 172 walks through the carryover calculation, with Line 10 showing the amount that moves to the next year. If carryforwards from multiple years are in play, the IRS expects a breakdown showing which year each loss originated and how much remains.
Passive Activity Loss Carryovers on Form 8582
Rental real estate and other passive activities generate their own carryforwards. When a passive loss couldn’t be fully deducted in a prior year, the unallowed portion carries forward and appears on Form 8582.8Internal Revenue Service. Form 8582 – Passive Activity Loss Limitations (2025) Prior-year unallowed losses show up in two spots:
- Line 1c for rental real estate activities with active participation, pulled from Part IV, column c of the form’s worksheets
- Line 2c for all other passive activities, pulled from Part V, column c
These carryforwards keep accumulating until absorbed by passive income or released through a complete disposition of the activity. When the entire activity is sold or otherwise fully disposed of in a taxable transaction, all accumulated unallowed losses from that activity release at once and become non-passive, meaning they can offset any type of income.9Office of the Law Revision Counsel. 26 USC 469 – Passive Activity Losses and Credits Limited There is no expiration on passive activity carryforwards.
Other Carryforwards and Where Each One Lives
Beyond the big three, several other carryforwards each have their own home on the return.
Section 179 Deduction Carryover
When a Section 179 expense deduction was limited by business income in a prior year, the disallowed amount carries forward on Form 4562 (Depreciation and Amortization), Line 10. Any amount still disallowed after applying the current year’s income limit carries forward again on Line 13.10Internal Revenue Service. Form 4562 – Depreciation and Amortization These carryforwards do not expire.
Qualified Business Income Loss Carryforward
A net loss from a qualified trade or business in a prior year reduces the QBI deduction in future years. On Form 8995 (the simplified version), the carryforward appears on Line 3. The instructions note that the qualified portion of the loss carryforward should be included even if the business that generated it no longer exists.11Internal Revenue Service. Instructions for Form 8995 (2025)
Charitable Contribution Carryovers
Contributions that exceeded the AGI percentage limits in a prior year carry forward for up to five years, then expire. Deduct the carryover on Schedule A (Form 1040), Line 11 or 12, depending on the type of contribution. Current-year contributions get priority within each category, and among carryovers, the oldest is used first.12Internal Revenue Service. Publication 526, Charitable Contributions
Foreign Tax Credit Carryover
Unused foreign tax credits can be carried back one year or forward ten years. Track them on Form 1116 and its Schedule B, which breaks down the unused credit by year and category.13Internal Revenue Service. FTC Carryback and Carryover
Prior-Year AMT Credit
If alternative minimum tax was paid in a prior year, Form 8801 calculates how much of that payment converts to a credit against regular tax this year. Line 26 shows any credit that carries forward to the following year.14Internal Revenue Service. Form 8801 – Credit for Prior Year Minimum Tax
How the Numbers Reach Form 1040
After the underlying forms are done, the results consolidate on Form 1040 in two key places. Capital gains and losses from Schedule D flow to Form 1040, Line 7a. If Schedule D shows a net loss, Line 7a is capped at $3,000 (or $1,500 if married filing separately), even when the total carryforward is much larger.15Internal Revenue Service. 1040 (2025) The unused portion becomes next year’s carryforward.
Net operating losses and other Schedule 1 items flow to Form 1040, Line 8 through Schedule 1’s Line 10 total. For a quick snapshot of how carryforward losses affected the bottom line, Lines 7a and 8 of Form 1040 are where to look.
When the Prior-Year Worksheet Is Missing
Every carryforward figure depends on the prior year’s calculation. When records are lost or the preparer has changed, the IRS provides tax return transcripts covering the current year and three prior years through an online IRS account, by calling 800-908-9946, or by mailing Form 4506-T. For older years, a tax account transcript requested on Form 4506-T reaches further back.16Internal Revenue Service. Transcript Types for Individuals and Ways to Order Them
Transcripts show what the IRS has on file but don’t always reproduce every worksheet. A return transcript will show Schedule D totals but may not reproduce the carryover worksheet line by line, so the worksheet may need to be rebuilt manually from prior Schedule D figures.
What Happens If a Year Got Skipped
Carryforwards cannot skip years. A capital loss carryforward from 2022 that was left off the 2023 return can’t simply be dropped onto the 2025 return. The IRS requires carryforwards to move through each intervening year in sequence, which means amending each skipped year on Form 1040-X to include the carryforward, recalculating how much was absorbed against that year’s income, and determining the balance that remains.17Internal Revenue Service. About Form 1045, Application for Tentative Refund
The same sequencing applies to NOL carryforwards and other loss types. Each year’s return is a link in the chain, and the IRS expects an unbroken record showing how the loss was applied or preserved from year to year.