A net operating loss (NOL) can appear when allowable deductions from a trade or business (and certain other items under IRS rules) exceed your gross income for the year. For many individuals, that shows up after a rough Schedule C year, a partnership or S-corp K-1 loss you can actually use, or a casualty of the types the code still allows. An NOL is not the same as a capital-loss carryforward, and it is not automatic every time a side hustle loses money on paper.
Filing workflow: Filing taxes for beginners. Side-income framing: W-2 vs 1099 tax basics and Self-employment tax basics.
NOL vs nearby loss ideas
| Concept | Typical stage | What it limits or allows (high level) |
|---|---|---|
| Passive activity loss | Before you freely use rental/business losses against wages | PAL rules may suspend losses |
| Capital loss | Investment sales | Gains first, then limited ordinary offset + carryforward |
| QBI deduction | After you have qualified business income | QBI basics - a deduction against income, not an NOL generator by itself |
| NOL | After allowable business (and related) losses exceed income under NOL computation rules | May create a carryforward that can reduce taxable income in later years (post-TCJA rules generally limit individuals to carryforwards, with an taxable-income percentage cap in many years - confirm current law) |
Hobby-loss and at-risk rules can deny or defer losses before an NOL discussion even starts. Keep books that show a profit motive and real basis.
Educational post-TCJA cues (confirm current year)
- Many individual NOLs arising in recent years are carried forward rather than carried back (exceptions exist for certain farming and insurance cases - out of scope detail).
- The amount of NOL you can use in a carryforward year is often limited to a percentage of taxable income computed under IRS worksheets (commonly discussed as 80% for many post-2017 NOLs - verify the year’s Form 1045 / Schedule A NOL instructions and Publication 536).
- State NOL rules can differ from federal; do not assume conformity.
This guide does not compute your Form 1045 or Schedule 1 NOL worksheets.
Worked example: Schedule C wipeout year
Casey has $55,000 W-2 wages and a Schedule C consulting practice. In Year 1, after ordinary and necessary expenses, Schedule C shows a $70,000 loss. After applying at-risk and other limits, assume the loss is allowable. On the full Form 1040 computation (illustrative):
- Wage income is more than offset by the business loss and other adjustments on the NOL worksheet path.
- Casey’s tax software flags a federal NOL carryforward into Year 2 rather than a full refund of all prior-year tax (no automatic multi-year carryback in this simplified story).
- In Year 2, Casey’s profitable Schedule C plus wages create taxable income; only a portion of the NOL may offset that year’s taxable income because of the percentage limitation - the rest continues forward.
Casey also owes attention to self-employment tax in profitable years and does not confuse an NOL with the standard vs itemized choice.
What to track
- Separate books for each activity (Schedule C, K-1 entities).
- Basis and at-risk amounts before you “spend” a loss.
- Prior-year NOL carryforward worksheets when you switch software or preparers.
- Whether losses are suspended under passive activity rules first - suspended PAL is not yet an NOL.
Checklist
- Confirm the loss is from a qualifying activity with basis/at-risk support.
- Run (or have a preparer run) the IRS NOL worksheets - do not eyeball “wages minus Schedule C.”
- Distinguish NOL carryforwards from capital-loss and PAL carryforwards.
- Check the taxable-income percentage limit in the carryforward year.
- Re-read Publication 536 / current-year instructions; rules shifted after TCJA and can shift again.
Educational only. Not tax, legal, or accounting advice. NOL computations, carryback exceptions, and percentage limits are technical and change; confirm with current IRS Publication 536 and a qualified tax professional for your facts.