Partnership Loans to Partners: Bona Fide Status, AFR, and Basis

A loan from a partnership to one of its partners is not taxable to the borrowing partner, provided the IRS treats it as a genuine debt rather than a disguised distribution or payment for services. That is the core of partnership loan to partner tax treatment: the principal is not income, but the arrangement has to look and function like a real loan, with a written note, an interest rate at or above the federal minimum, a repayment schedule, and consistent reporting on both sides. Get those pieces wrong and the IRS can recharacterize the transfer, pulling the entire amount into the partner’s income and triggering penalties.¹

Loan or Distribution: Why the Classification Decides Everything

The tax outcome turns on a single question. Is the money a loan the partner owes back, or is it the partner taking out their share of capital or profits? A real loan creates no immediate tax event because the obligation to repay offsets the cash received. A distribution, by contrast, is tax-free only up to the partner’s outside basis in the partnership; anything above that produces capital gain, taxed as if the partner sold part of their interest.²

When a partner deals with the partnership outside their partner capacity, including borrowing money, federal law treats the transaction as if it occurred with an unrelated party.¹ That framing is what allows the loan treatment to work. It also tells you the standard the IRS will apply: would an unrelated lender have made this loan on these terms?

If the answer is no, the agency has two directions to push the transaction. It can call the transfer a distribution and tax the partner on any amount above basis. Or it can call it a guaranteed payment for services or for the use of capital, which is ordinary income to the partner and may be deductible by the partnership. Either recharacterization reshuffles the tax picture in ways nobody planned for.

What Makes a Loan Bona Fide

Courts and the IRS weigh several factors together. No one item controls, but the more that are missing, the weaker the case for loan treatment:

A signed promissory note or written loan agreement
A stated interest rate; interest-free advances look like distributions
A fixed maturity date, not an open-ended transfer
Actual repayments the partner makes on schedule
Collateral or other security, where appropriate
Evidence the partner can realistically repay the amount borrowed
Consistent treatment as a loan on both the partnership’s and the partner’s tax returns

Lending a partner more than they can plausibly pay back is a particularly common weakness. So is informal, undocumented reporting that treats the same transfer as a loan in one place and a draw in another.

Documentation and Enforcement

A written loan agreement is the single most important piece of evidence. It should look like what a commercial lender would produce: a promissory note signed by the borrowing partner and by someone authorized to sign for the partnership, stating the principal, maturity date, repayment schedule with specific payment amounts and frequencies, and an interest rate at or above the Applicable Federal Rate. The partnership’s operating agreement should authorize partner loans and describe the approval process.

Documentation alone will not save a loan the partnership does not enforce. If a partner misses payments and nothing happens, the IRS can treat the note as if it never existed and recharacterize the principal as a distribution going back to the original transfer. Payment reminders, recorded payments, and late fees charged under the terms of the agreement are what separate a real loan from a paper exercise.

One accounting point matters a great deal. The loan belongs on the partnership’s books as a receivable, not as a reduction of the borrowing partner’s capital account. Booking the advance as a draw against capital effectively documents the transaction as a distribution and undermines the tax position from day one.

The Applicable Federal Rate and Below-Market Loans

Every partnership loan to a partner must charge interest at or above the Applicable Federal Rate, which the IRS publishes monthly.³ Short-term AFRs apply to loans of three years or less, mid-term rates to loans between three and nine years, and long-term rates to loans running longer than nine years.

Charge less than the AFR and the loan becomes a below-market loan, which triggers the imputed interest rules.⁴ The tax code pretends the loan carried the AFR regardless of what the parties agreed to. The gap between what the partner actually pays and what the AFR would have required is “forgone interest,” and the code treats it as if the partnership transferred that amount to the partner and the partner immediately paid it back as interest.

The result is phantom income. The partnership reports interest income it never received, and that income flows through to every partner on their K-1s according to profit-sharing ratios. A below-market loan to one partner can therefore affect the tax returns of partners who had nothing to do with the loan.

A narrow de minimis exception exists. For compensation-related loans between a partnership and a partner, the below-market rules do not apply on any day the total outstanding balance between the two sides is $10,000 or less, unless tax avoidance is one of the principal purposes of the interest arrangement.⁴ Most partnership loans exceed that threshold, so imputed interest applies in the great majority of real-world cases.

How the Borrowing Partner Is Taxed

The principal of a bona fide loan is not income to the partner. That is the central advantage over a distribution, which can trigger gain above outside basis.²

Interest the partner pays, including interest deemed paid under the imputed interest rules, may or may not be deductible. It depends entirely on how the partner used the money:

Personal use, such as buying a car or paying household expenses, produces nondeductible personal interest.
Investment use produces investment interest, deductible only up to the partner’s net investment income for the year, with any excess carried forward.⁵
Trade or business use may produce fully deductible business interest.

This creates an asymmetry worth seeing before you borrow. The partnership reports imputed interest income regardless of what the partner did with the money, but the partner’s deduction depends on the use. A partner who borrows at a below-market rate for personal spending ends up with phantom income on the K-1 and no offsetting deduction on their individual return.

The Loan Does Not Increase Outside Basis

Partnership liabilities owed to outside creditors generally increase each partner’s outside basis in proportion to their share of the debt, as if the partner had contributed additional cash.⁶ A loan running the other direction does not do the same thing. The borrowing partner gets cash but no basis increase.

That matters in two situations. The partner cannot use the loan proceeds to create basis for absorbing suspended partnership losses. And the partner cannot point to the loan as basis supporting future tax-free distributions. Partners who confuse the two directions of debt sometimes claim losses or take distributions they cannot support, and the IRS catches it when the basis computations are reconciled.

Self-Charged Interest

Interest the partner pays to the partnership flows in a circle: the partner pays, the partnership earns, and part of that income is allocated right back to the same partner. Without a special rule, the partner’s share of the partnership’s interest income could be passive while the partner’s interest deduction is nonpassive, leaving no way to offset them.

Treasury regulations address this by letting certain interest income from lending between a partner and a partnership be recharacterized as passive activity income, provided the income and the corresponding deduction fall in the same tax year. The rule also covers guaranteed payments for the use of capital, and it uses an “applicable percentage” based on the share of the partnership’s interest deductions that are passive.⁷ The calculation is technical, and misreporting passive income and loss on these related-party loans is a common audit trigger.

If the Partnership Forgives the Loan

Forgiveness is treated as a distribution of money to the partner at the time of forgiveness. The usual distribution rules then apply: tax-free up to the partner’s outside basis, capital gain to the extent anything is left over.²

In some circumstances, forgiveness instead produces discharge-of-indebtedness income, generally taxed as ordinary income. Exclusions exist for insolvent partners (up to the amount of insolvency) and in bankruptcy proceedings, but these come with required reductions to other tax attributes such as net operating losses, credit carryovers, and asset basis.⁸ Treating a forgiven loan as simply gone is one of the faster ways to draw IRS attention to the whole arrangement.

How the Partnership Reports the Loan

The partnership carries the loan as a receivable on its balance sheet and reports it on Form 1065.⁹ Loans to partners appear on Schedule L (Balance Sheets per Books) at Line 7a, designated for loans to partners or persons related to partners.¹⁰ Including the balance anywhere else as well is a reporting error that invites questions.

Interest earned on the loan is ordinary income to the partnership, allocated across all partners by their profit-sharing ratios rather than only to the borrower. Each partner’s share appears on Schedule K-1. Imputed interest under the below-market loan rules, along with any deemed transfers, has to be reported on the K-1 as well.⁹

Penalties for Getting the Classification Wrong

If misclassification causes an underpayment of tax, the IRS can add a 20% accuracy-related penalty on top of the tax owed. The penalty reaches underpayments caused by negligence, disregard of the rules, or a substantial understatement of income tax; for individuals, an understatement is substantial when it exceeds the greater of $5,000 or 10% of the tax that should have been shown on the return.¹¹

Reasonable cause and good faith can defeat the penalty. A written loan agreement, an AFR-compliant interest rate, actual payments made and recorded, and consistent reporting across the partnership and the partner all weigh in the taxpayer’s favor. A large cash transfer with no note, no interest, and no repayment history does not.

Because partnership income flows through to every partner, a recharacterization that changes the partnership’s reported income can ripple across every K-1. That means a sloppy loan to one partner can produce underpayments and penalties for partners who were never involved in the transaction.

1
Office of the Law Revision Counsel. 26 USC 707 – Transactions Between Partner and Partnership
2
Office of the Law Revision Counsel. 26 USC 731 – Extent of Recognition of Gain or Loss on Distribution
3
Internal Revenue Service. Applicable Federal Rates (AFRs) Rulings
4
Office of the Law Revision Counsel. 26 USC 7872 – Treatment of Loans With Below-Market Interest Rates
5
Office of the Law Revision Counsel. 26 USC 163 – Interest
6
eCFR. 26 CFR 1.752-1 – Treatment of Partnership Liabilities
7
eCFR. 26 CFR 1.469-7 – Treatment of Self-Charged Items of Interest Income and Deduction
8
Office of the Law Revision Counsel. 26 USC 108 – Income From Discharge of Indebtedness
9
Internal Revenue Service. About Form 1065, U.S. Return of Partnership Income
10
Internal Revenue Service. Instructions for Form 1065 (2025)
11
Office of the Law Revision Counsel. 26 USC 6662 – Imposition of Accuracy-Related Penalty on Underpayments