Part of our pillar guide: Real Estate Tax Benefits: The Complete Overview →
At a Glance
| Code section | IRC §465(b)(6) |
| What it does | Treats real estate nonrecourse debt as an amount "at risk" |
| Who it matters to | Limited partners and other passive investors who do not sign on the debt |
| Effect on deductions | Adds your allocated share of the mortgage to your at-risk amount |
| Lender requirement | A person actively and regularly engaged in the business of lending money |
| Classic disqualifiers | Seller financing · personal guarantees · convertible debt |
| Where to verify | Schedule K-1 (Form 1065), Part II, Item K |
| If it fails | Loss suspended under §465, carried forward; reported on Form 6198 |
| Applies before | The §469 passive activity loss rules |
Most investors who read about bonus depreciation and cost segregation eventually notice something that looks like it should not be allowed. A limited partner contributes $100,000 to a deal. The K-1 arrives allocating $170,000 of loss. The investor deducts a number larger than the check they wrote.
That is not an error, and it is not aggressive. It is the intended operation of a deliberate exception Congress wrote into the at-risk rules for real estate. But it is conditional — and the condition sits entirely in how the sponsor financed the property, not in anything the investor controls after closing.
The condition has a name: qualified nonrecourse financing. This guide explains what it is, the tests a loan has to pass, what quietly disqualifies it, and what to ask a sponsor before you fund.
Chapter 1
The Puzzle: Deducting More Than You Invested
Depreciation is calculated on the full cost of the building — not on the equity used to buy it. A $5 million property bought with $2 million of equity and $3 million of debt still depreciates $5 million of basis. The deductions generated by the borrowed 60% have to be allocated to somebody, and in a partnership they flow through to the partners.
Congress has never been comfortable with that arithmetic in the abstract. In the 1970s, tax shelters were built on exactly this shape: enormous nonrecourse loans creating enormous deductions for investors who had almost no real money exposed and no genuine obligation to repay. The response, in 1976, was IRC §465 — the at-risk rules.
The At-Risk Principle
You may deduct losses from an activity only up to the amount you genuinely stand to lose. Cash contributed counts. The basis of property you contributed counts. Money you borrowed and are personally liable to repay counts. Money borrowed on a nonrecourse basis — where the lender's only remedy is the property — generally does not.
Read that principle literally and limited partners are in trouble. The defining feature of an LP interest is that you do not sign personally for the mortgage. Your downside is capped at your contribution — which is the entire appeal. But that same feature means your share of the debt fails the ordinary at-risk test, and your deductions would be capped at your cash.
Congress addressed this directly in 1986. Real estate, unlike the shelters §465 was aimed at, is customarily and legitimately financed with nonrecourse mortgages from real lenders underwriting real collateral. So the statute carves real property out — on conditions designed to separate a genuine commercial mortgage from a paper one.
Chapter 2
Three Gates a Loss Must Pass
Investors often collapse all loss limitations into “the passive loss rules.” In fact a partnership loss runs a gauntlet of separate provisions, in a fixed order. Each one can stop the loss independently, and clearing one says nothing about the next.
Outside basis — §704(d)
Your distributive share of loss cannot exceed your adjusted basis in the partnership interest. Here the debt helps automatically: under §752, your share of partnership liabilities increases your outside basis. This gate is rarely the binding one in a leveraged real estate deal.
At risk — §465
Next, the loss is limited to the amount you have at risk. This is a narrower figure than basis, because ordinary nonrecourse debt is excluded — and this is the gate where qualified nonrecourse financing does its work. It is also the gate most investor-facing marketing material never mentions.
Passive activity — §469
Finally, if the activity is passive to you, the loss can only offset passive income. This is the rule most investors have heard of, and the one REPS addresses. A loss that survives gates one and two can still be suspended here.
There is a fourth gate beyond these three — the excess business loss limitation of §461(l) — which can cap the amount of aggregate business loss a non-corporate taxpayer deducts in a year even after §469 is satisfied. It is outside the scope of this guide, but worth naming so your model does not stop at three.
Why the Ordering Matters
A physician who qualifies for Real Estate Professional Status has solved gate three. If the sponsor financed the property with a seller note, gate two may still be closed — and the loss is limited regardless of how many hours anyone logged. REPS is not a universal key.
Chapter 3
What Makes Financing “Qualified”
Under §465(b)(6), financing is qualified nonrecourse financing with respect to an activity of holding real property when all of the following hold. Each test is a place a real transaction can fail.
1 · Connected to holding real property
The debt must be borrowed with respect to the activity of holding real property. Property incidental to making the real property available — and, in a residential setting, related services — is generally treated as part of that activity rather than as a separate one.
2 · Secured by the real property
The loan must be secured by the real property used in the activity. Unsecured sponsor-level or fund-level borrowings do not qualify at the property activity, even if the proceeds reach the same building.
3 · Borrowed from a qualified person
The lender must be actively and regularly engaged in the business of lending money — a bank, an agency lender, an insurance company, a CMBS conduit. Loans from a federal, state, or local government body, or guaranteed by one, also qualify. Critically, a qualified person cannot be the seller of the property, cannot be a person receiving a fee with respect to your investment, and generally cannot be related to the taxpayer.
4 · No person is personally liable
The financing must be genuinely nonrecourse. The statute is written broadly: it asks whether any person is personally liable for repayment, not merely whether you are. A guarantee somewhere in the structure is the single most common way this test fails.
5 · Not convertible debt
Debt convertible into an equity interest does not qualify. The lender must be a lender, not an equity holder waiting for a trigger.
There is a narrow accommodation on the related-party point: financing from a related person can still qualify if the terms are commercially reasonable and substantially the same as terms available on loans involving unrelated persons. A sponsor lending to their own deal at market terms is not automatically fatal — but it is precisely the fact pattern to have your own advisor look at rather than assume.
A Note on Guarantees
Test four is where well-intentioned deal structuring collides with tax outcomes. A sponsor guarantee can strengthen a loan commercially while creating a question about the qualified nonrecourse characterization for every investor in the partnership. The regulations under §465 contain specific rules addressing personal liability in this context, and outcomes turn on the precise language of the guarantee. This is a question for the fund's tax counsel and your own CPA — not one to settle from a summary.
Chapter 4
The Difference in Dollars
Consider two identical deals that differ only in how the debt was sourced. In both, a limited partner contributes $100,000 for a 5% interest, and a cost-segregation study with bonus depreciation produces a first-year loss allocation of $170,000 to that partner.
The Deal · $5,000,000 Property
Scenario A — Agency nonrecourse loan
Qualifies under §465(b)(6)
The $170,000 loss is below the at-risk ceiling. The full loss clears §465 and moves on to the passive activity analysis.
Scenario B — Seller-financed note
Fails the qualified person test
Only $100,000 of the loss is allowed this year. $70,000 is suspended under §465 and carried forward until the at-risk amount increases.
* Hypothetical and illustrative only — not a projection or a representation of any actual or expected result. Assumes the loss allocation shown is otherwise valid under the partnership agreement and §704(b), that outside basis under §704(d) is sufficient, and that debt is allocated pro rata for simplicity; real nonrecourse allocations follow the regulations under §752 and are rarely a clean percentage. It addresses only the §465 at-risk gate — the §469 passive activity rules apply after and may suspend the loss anyway, and it ignores depreciation recapture at sale. Consult your own CPA or tax attorney.
The economics of the two deals are identical. The investor's cash, risk, and ownership are identical. The entire $70,000 difference in current-year deduction comes from a financing decision made before the investor was ever in the room — which is exactly why this belongs in diligence rather than in April.
Chapter 5
Structures That Quietly Disqualify
None of the following are improper ways to finance real estate. Several are common and sensible. But each one puts pressure on the qualified nonrecourse analysis, and none of them announce themselves in a deal summary.
Seller financing
The seller of the property is expressly excluded from being a qualified person. A seller carryback note is the cleanest possible failure of test three — and seller notes are common in the middle market, including in manufactured housing.
Personal guarantees
Test four asks whether any person is personally liable. Guarantees appear routinely in bank and bridge debt, and a "bad boy" carve-out or springing guarantee can raise the question even where the loan is marketed as nonrecourse.
Lender who also earns a fee on the raise
A person receiving a fee with respect to your investment in the activity is not a qualified person. Structures where an affiliated capital-markets or placement entity also provides debt deserve a close look.
Convertible or equity-kicker debt
Debt convertible into an equity interest is excluded outright. Mezzanine and preferred instruments with conversion features can sit awkwardly here — and mezzanine debt is often not secured by the real property in the first place, which also implicates test two.
Sponsor or affiliate loans
Related-person financing can qualify, but only on commercially reasonable terms substantially the same as unrelated-party terms. An accommodation loan at a non-market rate is the fact pattern that fails.
Fund-level or unsecured borrowing
A line of credit at the fund entity, not secured by the underlying real property, is not qualified nonrecourse financing with respect to the property activity even though it funded the same acquisition.
The Loss Is Delayed, Not Destroyed
A §465 limitation is not a forfeiture. The disallowed amount is suspended and carried forward indefinitely, and it becomes deductible in a later year when your at-risk amount rises — through additional capital contributions, allocated income, or a refinancing into qualifying debt. You track the limitation on Form 6198. The cost is timing and present value, which for a bonus-depreciation-driven thesis is very often the entire point.
Chapter 6
What to Ask Before You Fund
If a projected first-year deduction is part of why you are investing, the debt structure is a diligence item — not a tax-season discovery. Five questions get you most of the way.
Who is the lender, and what are they?
You are looking to confirm an institution actively and regularly in the business of lending — an agency lender, bank, life company, or conduit — rather than the seller, an affiliate, or a related party.
Is the loan nonrecourse, and is there any guarantee?
Ask specifically about guarantees, including partial, springing, and "bad boy" carve-outs, and who signs them. "It’s nonrecourse" and "no person is personally liable" are not always the same statement.
Is the debt secured by the property itself?
Confirm the mortgage sits at the property-owning entity and is secured by the real property — not a fund-level facility or unsecured sponsor borrowing.
Is there any seller note, mezzanine piece, or convertible instrument in the stack?
Ask for the full capital stack, not just the senior loan. The senior mortgage often qualifies while a subordinate piece does not — the analysis is per-loan.
How will Item K of the K-1 report my share?
A sponsor who has thought about this can tell you whether they expect to report your debt share on the qualified nonrecourse financing line. A sponsor who has not thought about it has told you something useful too.
Then verify after the fact. When the K-1 arrives, read Part II, Item K. If a leveraged real estate deal reports your entire debt share on the plain nonrecourse line rather than the qualified nonrecourse financing line, that is a question worth asking before you file — not an answer.
Pitfalls
Common Mistakes
Assuming the passive loss rules are the only hurdle
Investors research §469 exhaustively and never encounter §465. The at-risk rules apply first and can limit a loss even for someone with abundant passive income or REPS.
Treating "nonrecourse" as automatically qualifying
Nonrecourse is necessary but nowhere near sufficient. A nonrecourse seller note is nonrecourse — and disqualified. The lender identity test does independent work.
Modeling a first-year deduction before reading the debt terms
A projected year-one write-off is a function of the capital stack as much as of the cost-segregation study. Modeling one without the other produces a number that may not survive the return.
Forgetting that a guarantee anywhere can matter
The test reaches personal liability of any person, not just yours. A guarantee signed by a sponsor principal is not automatically irrelevant to a limited partner.
Assuming a suspended loss is a lost loss
It is neither. A §465 suspension carries forward indefinitely and releases as your at-risk amount grows. The damage is present value, not permanent disallowance.
Ignoring the back end
Qualified nonrecourse financing enlarges what you can deduct now. It does nothing to reduce what comes back at sale — that is what depreciation recapture is for, and it should be in the same model.
FAQ
Frequently Asked Questions
What is qualified nonrecourse financing?
Qualified nonrecourse financing is defined in IRC §465(b)(6). It is debt borrowed in connection with the activity of holding real property, secured by that real property, borrowed from a qualified lender (or government body), for which no person is personally liable, and which is not convertible debt. When financing meets that definition, the tax code treats your share of it as an amount you have at risk — even though you never signed personally for it.
Why does qualified nonrecourse financing matter to a limited partner?
Because of the at-risk rules in §465, a passive investor generally cannot deduct losses beyond the cash they actually put in. Your share of ordinary nonrecourse partnership debt does not count toward your amount at risk. The §465(b)(6) exception reverses that for real estate: your allocated share of the mortgage is added to your at-risk amount. That is the mechanism that lets a $100,000 limited partner deduct a first-year depreciation loss substantially larger than $100,000.
Where do I find qualified nonrecourse financing on my K-1?
Schedule K-1 (Form 1065), Part II, Item K breaks your share of partnership liabilities into three lines: nonrecourse, qualified nonrecourse financing, and recourse. If the sponsor has characterized the mortgage as qualified nonrecourse financing, your share appears on that middle line. If a leveraged real estate deal reports your entire debt share on the plain "nonrecourse" line instead, that is worth asking about.
What disqualifies a loan from being qualified nonrecourse financing?
The most common disqualifiers are seller financing (the seller of the property is not a qualified person), a personal guarantee by any person, convertible debt, and loans from a party who is receiving a fee with respect to the investment. Related-party loans can qualify only if the terms are commercially reasonable and substantially the same as terms available from unrelated lenders.
What happens if the debt is not qualified nonrecourse financing?
Your loss is limited to your actual amount at risk — generally your cash contribution. The excess is not lost; it is suspended under §465, carried forward indefinitely, and released in a later year when your at-risk amount increases. You report the limitation on Form 6198. The tax benefit is delayed rather than destroyed.
Do the at-risk rules replace the passive loss rules?
No. They stack, and order matters. Your outside basis limits the loss first under §704(d), the at-risk rules apply second under §465, and only then do the passive activity loss rules of §469 apply. Clearing the at-risk hurdle does not make a loss deductible against W-2 income — it just means §465 is no longer the thing stopping you.
Continue Learning
Passive Loss Rules (§469)
The gate that comes after the at-risk rules. Why rental losses are passive by default, the $25,000 allowance, and how suspended losses release.
Bonus Depreciation
The deduction that makes the at-risk question urgent — front-loading write-offs into year one is exactly when §465 becomes the binding constraint.
Cost Segregation Studies
How a study manufactures the first-year loss allocation, and why the size of that allocation is what pushes against your at-risk ceiling.
Real Estate Professional Status
Solves the §469 gate — and only that gate. Why REPS alone does not answer the at-risk question.
Depreciation Recapture
The other side of the ledger. What comes back at sale on the depreciation the at-risk rules let you take.
MHC Bonus Depreciation
Why manufactured housing communities carry an unusually favorable depreciation profile — and how agency nonrecourse debt fits the picture.