Net Operating Loss (NOL) Calculator
Calculate NOL carryforwards, carrybacks, and maximize tax savings with expiration tracking
Current Year Information
Tax Rates
Historical NOLs
Income Projections
NOL Analysis
Understanding Net Operating Losses
A Net Operating Loss (NOL) occurs when a business's allowable tax deductions exceed its taxable income for a tax year. NOLs can be valuable tax assets that reduce future tax liabilities.
Current NOL Rules (Post-2017)
- No Carryback: NOLs arising after 2017 cannot be carried back (except farming)
- Indefinite Carryforward: Post-2017 NOLs can be carried forward indefinitely
- 80% Limitation: NOL deduction limited to 80% of taxable income
- No Expiration: Unlike pre-2018 NOLs, no 20-year expiration
Pre-2018 NOL Rules
- 2-year carryback, 20-year carryforward
- 100% of income offset allowed
- Expire after 20 years if unused
- Special rules for certain industries
Key Considerations
- Section 382: Ownership changes can severely limit NOL usage
- State Rules: States have varying NOL rules and conformity
- AMT: Different rules apply for Alternative Minimum Tax
- Consolidated Returns: Special rules for affiliated groups
Strategic Planning
- Time income recognition to maximize NOL usage
- Consider entity structure changes to optimize usage
- Monitor expiration dates for pre-2018 NOLs
- Plan for ownership changes that might limit NOLs
- Coordinate federal and state NOL strategies
About This Calculator
Calculate Net Operating Loss (NOL) carryforward value, tax savings, and expiration tracking. Analyzes historical NOLs, applies 80% taxable income limitation (2018+ NOLs), tracks indefinite carryforward (no expiration), calculates multi-year tax savings at marginal rates, and identifies expiring pre-2018 NOLs (20-year limit). Supports C-Corp and pass-through entities.
Frequently Asked Questions
How do NOL carryforward rules work under TCJA 2025?
Post-2017 NOLs: unlimited carryforward (no expiration), 80% taxable income limitation per year, no carryback (except 2018-2020 CARES Act). Pre-2018 NOLs: 20-year carryforward, 100% offset, expire in 2037 or earlier. Example: $500k NOL from 2023 + $300k 2025 income = deduct $240k max (80% of $300k), $500k - $240k = $260k carries to 2026.
What is the 80% limitation and how does it affect my taxes?
80% limitation means NOL can only offset 80% of taxable income each year (for post-2017 NOLs). Example: $1M taxable income, $2M NOL carryforward = deduct $800k max (80% of $1M), pay tax on $200k. Remaining $1.2M NOL carries forward indefinitely. This extends NOL utilization over more years vs prior 100% offset.
How much tax can I save with an NOL carryforward?
Tax savings = NOL deduction 脳 marginal tax rate. Example: $500k NOL, 21% C-Corp rate = $105k total tax savings. If spread over 3 years: Year 1 $200k deduction ($42k saved), Year 2 $200k ($42k), Year 3 $100k ($21k). For pass-through: $500k NOL at 37% individual rate = $185k total savings. Time value of money reduces present value if spread over many years.
Do pre-2018 NOLs expire and when?
Yes, pre-2018 NOLs expire after 20 years from origination year. Example: 2010 NOL expires end of 2030. 2017 NOL expires 2037. Track expiration dates carefully鈥攗se oldest NOLs first (FIFO ordering). Post-2017 NOLs never expire (indefinite carryforward) but are subject to 80% limitation. Check if any pre-2018 NOLs will expire unused within 2-3 years and accelerate income to utilize.
Can I carry back NOLs to prior years for refunds?
Generally NO for post-2017 NOLs (TCJA eliminated carryback). Exception: CARES Act allowed 5-year carryback for 2018-2020 NOLs only (expired). Pre-2018 NOLs had 2-year carryback. Example: 2024 $500k NOL cannot be carried back to 2023 for refund, only carried forward. For farming losses: special 2-year carryback still available. File Form 1045 or 1139 for carryback refunds if eligible.
How do state NOL rules differ from federal?
State rules vary widely: some conform to federal TCJA changes, others retain old rules. California: pre-2020 NOLs suspended 2020-2022 (now usable), 80% limitation, $1M cap for some taxpayers. New York: follows federal but has separate NOL tracking. Texas: no income tax, N/A. Recommend: track federal and state NOLs separately, check state-specific limitations/expirations, consider entity domicile changes if large NOLs.