The at-risk rules answer a straightforward question: how much could you actually lose? Deductions from an activity are limited to that amount.
The principle is that you should not deduct losses exceeding your economic exposure. If you invested ten thousand and borrowed ninety thousand on terms where you are not personally liable, you can lose ten thousand — so that is broadly what you can deduct.
What changed in 2026
- The rules themselves stayed stable. This is long-standing law.
- Complex financing structures kept it relevant. Arrangements involving guarantees and layered debt continued to require analysis.
- Interaction ordering got better documented. The sequence of limitations became more widely understood.
- Tracking discipline improved. More practitioners maintained explicit at-risk schedules alongside basis schedules.
What counts as at risk
Included: cash you contributed, the adjusted basis of property you contributed, and amounts borrowed for which you are personally liable — recourse debt.
Excluded: amounts borrowed on a non-recourse basis, where the lender's only remedy is the property itself, and amounts protected against loss by guarantees, stop-loss agreements, or similar arrangements.
The important exception is qualified nonrecourse financing for real property — broadly, borrowing from a genuine commercial lender secured by real property on ordinary commercial terms. That generally counts toward the at-risk amount despite being non-recourse, which is why real estate is treated more favourably than most other activities under these rules.
Without that exception, most leveraged real estate would produce deductions capped at the cash invested, which would substantially change the economics.
Three limitations in sequence
Losses pass through several gates, in order, and understanding the sequence prevents confusion about which one is blocking a deduction.
| Order |
Limitation |
Question |
| 1 |
Basis |
Do you have basis in the activity? |
| 2 |
At-risk |
Do you have economic exposure? |
| 3 |
Passive activity |
Do you have passive income to offset? |
A loss must survive all three to be currently deductible. Losses blocked at each stage are suspended and carried forward, and they are tracked separately at each level.
That means a suspended loss might be waiting for basis, for at-risk amount, or for passive income — and the fix differs. Contributing capital increases basis and at-risk amount; generating passive income addresses the third gate; neither helps with the others.
Confusing basis and at-risk amount is the common error. They start similar and diverge, particularly where non-recourse debt is involved — debt may increase basis while not increasing the at-risk amount.
The amount changes annually
Your at-risk amount is not fixed at investment. It moves.
Increases with additional contributions, additional recourse borrowing, and income from the activity.
Decreases with losses allowed, distributions received, and conversion of recourse debt to non-recourse.
That last one deserves attention: refinancing recourse debt into non-recourse debt can reduce your at-risk amount, potentially below zero, which triggers recapture of previously allowed losses. That is a genuine trap in refinancing decisions, and it is not obvious.
Maintaining a running at-risk schedule per activity, alongside the basis schedule, is what makes this manageable. Reconstructing years of at-risk amounts retrospectively is unpleasant and sometimes impossible.
Common mistakes
- Treating basis and at-risk as the same. They diverge, particularly with non-recourse debt.
- Assuming all borrowing increases the at-risk amount. Non-recourse generally does not.
- Refinancing to non-recourse without checking. Can trigger recapture.
- Not tracking the amount annually. Reconstruction is difficult.
- Confusing which limitation blocked a loss. Different fixes.
- Overlooking the real property exception. It substantially changes real estate treatment.
- Assuming guarantees always increase the at-risk amount. Guarantees for related parties may not count.
FAQ
Does this affect ordinary rental property?
Generally the qualified nonrecourse financing exception means conventional mortgage borrowing counts, so at-risk is frequently not the binding constraint for typical rentals. Passive loss rules usually are.
What happens to losses blocked at this stage?
Suspended and carried forward until your at-risk amount increases, then allowed to the extent of the increase.
Can my at-risk amount go negative?
Not as a deductible position — if events reduce it below zero, previously allowed losses may be recaptured as income.
How does this apply to partnerships?
It applies at the partner level, based on each partner's own exposure. Two partners in the same partnership can have different at-risk amounts depending on how debt is allocated and guaranteed.
Where to go next
For the limitation that applies after this one, read passive activity losses. For the deductions frequently caught by both, cost segregation, and for the basis concept underneath, cost basis explained.
This is general information, not tax advice. At-risk calculations are activity-specific and interact with other limitations; consult a qualified preparer.