The at-risk rules (Section 465) limit deductible losses from a business or investment to the amount you could actually lose. Losses exceeding your at-risk amount are suspended and carried forward to future years.
At-Risk Amount Calculation — 2026
Your adjusted basis in contributed property
Loans where you are personally liable
Real estate nonrecourse financing from qualified lenders only
Reduces at-risk amount — not truly at risk
How to Calculate Your At-Risk Amount Under Section 465
The at-risk rules under IRC Section 465 prevent taxpayers from deducting losses beyond their actual economic exposure in an activity. This applies to most trade or business activities and certain investment activities.
What Increases Your At-Risk Amount
Your at-risk amount starts with cash and the adjusted basis of property you contributed. Add recourse debt — loans where you are personally liable. For real estate activities, you may also include qualified nonrecourse financing from commercial lenders, government agencies, or unrelated parties. Prior year income from the activity also increases at-risk.
What Reduces Your At-Risk Amount
Deductions you've taken in prior years reduce your at-risk amount. Amounts protected by guarantees, stop-loss arrangements, or nonrecourse debt (outside the real estate exception) are NOT at risk, even if you technically contributed them.
At-Risk Rules vs. Passive Activity Rules
Both rules can limit loss deductions, and both apply to the same activities. A loss must pass the at-risk test FIRST, then the passive activity test. Losses that survive both tests reduce your active or portfolio income as appropriate.
FAQ
What are the at-risk rules under Section 465?
Section 465 limits your deductible losses from a business or investment activity to the amount you have 'at risk' — meaning money you could actually lose if the activity fails. This includes cash contributed, borrowed amounts for which you are personally liable, and your adjusted basis in property contributed. Losses exceeding your at-risk amount are suspended and carried forward to future years.
What counts toward my at-risk amount?
Your at-risk amount includes: cash and adjusted basis of property you contributed, amounts borrowed for which you are personally liable (recourse debt), and your share of qualified nonrecourse financing for real estate activities. It does NOT include amounts protected against loss by guarantees, stop-loss agreements, or similar arrangements.
What is nonrecourse debt?
Nonrecourse debt is a loan where the lender's only recourse in case of default is the collateral — you have no personal liability beyond the asset. Generally, nonrecourse debt does NOT increase your at-risk amount, except for qualified nonrecourse financing secured by real property used in real estate activities.
How do suspended at-risk losses work?
Losses suspended under Section 465 are carried forward indefinitely. They become deductible in a future year when your at-risk amount increases (e.g., you contribute more capital, the activity generates income, or you repay debt). When you fully dispose of the activity, all suspended losses are released and become deductible.
Is this calculator free?
Yes, completely free with no signup required. For educational purposes only — at-risk rules are complex and interact with passive activity rules. Consult a tax professional before filing. 2026 rules shown.