Tax
At-Risk Rules (IRC §465)
Tax rules limiting deductible losses to the amount an owner has actually 'at risk' in the business: cash invested plus recourse debt they're personally liable for.
Section 465 prevents owners from deducting losses funded by non-recourse debt where they have no personal financial exposure. Most relevant to real-estate partnerships, equipment-leasing structures, and any activity where a bank's or seller's loan is secured only by the underlying asset, not by the owner personally.
An owner's 'at-risk amount' starts at cash contributed, increases with allocable income and additional contributions, and decreases with distributions and allocable losses. Recourse debt for which the owner is personally on the hook adds to the at-risk amount; non-recourse debt generally does not (with the significant carveout for 'qualified non-recourse financing' secured by real property, which the code specifically restores).
Disallowed losses don't disappear; they carry forward indefinitely and become deductible if and when the owner has additional at-risk amount. This is why partnership K-1s often show large suspended losses that release when the partner puts in additional capital, personally guarantees a new loan, or the underlying asset is disposed of in a fully taxable sale.
Three limitation gates apply in sequence to partnership and S-corp losses: (1) basis under IRC §704(d) or §1366(d), (2) at-risk under §465, and (3) passive-activity under §469. A loss must clear ALL THREE to reach the individual's return; the lowest cap binds. Missing one of these on a K-1 without a separate at-risk workpaper is the fastest way to overclaim a loss the IRS will disallow on exam.
Common pitfalls
- Confusing basis (the §704(d) limit) with at-risk amount (the §465 limit); both apply, and the lower limit binds
- Including non-recourse debt in at-risk amount without checking the 'qualified non-recourse financing' carveout for real estate
- Not tracking at-risk amount separately by activity, which is required when an owner has multiple ventures
- Losing the suspended at-risk loss on a disposition because the workpaper was never maintained; the deduction is real but the substantiation isn't
- Guaranteeing a partnership loan late in the year without a Form 8082 or partnership-agreement amendment; the personal guarantee needs to be documented to shift the debt to recourse for the guarantor
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