Why It Matters
Here's the short version: the IRS won't let you write off more than you could actually lose. If you put $50,000 of your own money into a deal, you can't deduct $200,000 in losses just because the property is worth that much. Your deductible losses are capped at your at-risk amount. For real estate investors, the good news is that qualified non-recourse financing from banks counts as at-risk — so your conventional mortgage increases your at-risk amount even though you're not personally liable for it. That's a huge advantage that investors in other asset classes don't get.
At a Glance
- What it limits: The total losses you can deduct from any single investment activity
- At-risk amount formula: Cash invested + recourse debt + qualified non-recourse real estate financing
- Real estate exception: Bank-financed mortgages on real property count as at-risk, even if they're non-recourse
- Suspended losses: Excess losses carry forward indefinitely until your at-risk amount increases
- Where it fits: Second gate in the loss limitation hierarchy, after basis limits and before passive activity loss rules
At-Risk Amount = Cash Invested + Recourse Debt + Qualified Non-Recourse RE Financing
How It Works
The basic concept is simple. The IRS says you can only deduct losses up to the amount you could actually lose. Your at-risk amount starts with every dollar of cash you've put into the investment, plus any debt where you're personally on the hook if things go south. In a $200,000 rental property purchased with $40,000 down and a $160,000 mortgage, your starting at-risk amount could be the full $200,000 — if the financing qualifies.
Real estate gets special treatment. In most investments, non-recourse debt (where the lender can only seize the collateral, not come after your personal assets) does NOT count as at-risk. But Section 465(b)(6) carves out a massive exception for real property: qualified non-recourse financing from banks, credit unions, and regulated financial institutions counts toward your at-risk amount. This is why a standard Fannie Mae or Freddie Mac mortgage increases your at-risk basis — it's borrowed from a qualified lender and secured by real property. Seller financing, on the other hand, typically does NOT qualify because the loan comes from the property seller, not a third-party lender.
These rules work as one gate in a sequence. Before you can deduct a rental loss, it has to survive multiple checkpoints. First, your loss can't exceed your tax basis in the property. Second, it can't exceed your at-risk amount (that's this rule). Third, it has to clear the passive activity loss rules under Section 469. A loss that passes the at-risk test might still get blocked by passive activity limitations — they're separate hurdles. The at-risk rules determine how much you could potentially deduct; the passive activity rules determine when you can actually use those deductions against other income.
Your at-risk amount changes over time. It increases when you contribute more cash, pay down principal, or your share of the activity's income exceeds distributions. It decreases when you take distributions, claim deductions, or do a cash-out refinance that pulls equity out. If your at-risk amount drops below zero — which can happen after a large cash-out refi — you may have to recapture (report as income) previously deducted losses. That's a scenario worth discussing with your CPA before pulling cash out of a property with heavy bonus depreciation deductions behind it.
Real-World Example
Sarah buys a rental duplex for $250,000. She puts $50,000 down and finances $200,000 with a conventional mortgage from her local credit union. Her at-risk amount on day one is $250,000 — the $50,000 cash plus $200,000 of qualified non-recourse financing.
In year one, the property generates $18,000 in rental income but has $22,000 in deductible expenses (including $7,273 in straight-line depreciation on the $200,000 depreciable basis over 27.5 years, plus $6,000 in property tax, insurance, and maintenance, plus $8,727 in mortgage interest). That's a $4,000 tax loss.
Since $4,000 is well under her $250,000 at-risk amount, the loss clears the at-risk gate. It then moves to the passive activity test — and since Sarah actively manages the property and her adjusted gross income is under $100,000, she can deduct the full $4,000 loss against her W-2 passive income, saving her roughly $880 in federal taxes (at a 22% marginal rate).
Now compare that to her colleague Dave, who buys into a $250,000 equipment leasing deal with $50,000 down and $200,000 in non-recourse financing from the equipment seller. Dave's at-risk amount is only $50,000 — the cash. The seller financing doesn't count because it's not qualified non-recourse financing on real property from a third-party lender. If the deal generates a $60,000 loss in year one, Dave can only deduct $50,000. The remaining $10,000 is suspended and carried forward until his at-risk amount increases.
Pros & Cons
- Real estate gets favorable treatment. The qualified non-recourse financing exception means your full mortgage balance counts as at-risk, dramatically increasing your deductible loss capacity compared to other investments
- Suspended losses aren't lost. Any losses that exceed your at-risk amount carry forward indefinitely — you'll eventually use them as your at-risk amount increases through principal paydown and additional contributions
- Encourages real economic investment. The rules ensure your deductions are backed by actual financial exposure, which keeps your tax strategy on solid ground with the IRS
- Straightforward calculation. Unlike some tax rules, the at-risk formula is relatively simple: cash in + qualifying debt = your ceiling for deductions
- Seller financing creates a trap. If you buy a property with owner financing, that debt typically doesn't count as at-risk, which can dramatically limit your deductible losses — especially in the early years when depreciation deductions are largest
- Cash-out refinances can backfire. Pulling equity out can reduce your at-risk amount, potentially triggering recapture of previously deducted losses as taxable income
- Related-party loans don't qualify. Financing from family members, business partners, or anyone with a financial interest in the activity doesn't count toward at-risk, even if structured as a standard loan
- Adds complexity to tax planning. You need to track your at-risk basis separately from your tax basis — they're not the same number, and both must be calculated correctly each year
Watch Out
Seller financing is the most common trap for new investors. When you buy a property with owner financing, that debt almost never counts as qualified non-recourse financing — even if it's secured by the property and structured exactly like a bank mortgage. The IRS specifically excludes financing from persons with a financial interest in the activity, including the seller. A $300,000 seller-financed deal with $30,000 down means your at-risk amount is just $30,000, not $300,000. Plan your depreciation strategy accordingly.
Cash-out refinances require careful math. If you've been claiming large depreciation deductions — especially bonus depreciation — on a property and then do a cash-out refinance, you need to verify that your at-risk amount stays positive. If it goes below zero, you'll have to recapture some of those prior deductions as ordinary income. Run the numbers with your CPA before signing the refi paperwork.
Don't confuse at-risk amount with tax basis. They're related but different numbers. Your tax basis includes adjustments like depreciation that reduce it over time. Your at-risk amount has its own set of additions and subtractions. You can have a positive at-risk amount but zero tax basis, or vice versa. Both limits must be satisfied independently before you can deduct a loss.
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The Takeaway
The at-risk rules are one of three gates your rental property losses must pass through before they reduce your tax bill — after the basis limitation and before the passive activity loss rules. The critical thing for real estate investors to understand is that qualified non-recourse financing from banks counts as at-risk, which means your standard mortgage gives you far more deduction capacity than investors in other asset classes get. Where the rules bite is in seller-financed deals, related-party loans, and aggressive cash-out refinances. Track your at-risk basis alongside your tax basis every year, and talk to your CPA before any deal that involves non-traditional financing. Your NOI tells you how the property performs operationally — your at-risk amount tells you how much of that performance you can actually use on your tax return.