Is Loan Repayment Taxable Income? Interest, Forgiveness, and Exclusions

Repaying a loan is not taxable income, and neither is receiving the loan in the first place. When you borrow $20,000, your cash goes up by $20,000 and you owe $20,000; the entries cancel, so there is no gain to tax. When you send principal back, your cash and your debt drop by the same amount, and again nothing has changed on your net worth. Federal law defines gross income as any accession to wealth,¹ and borrowed money doesn’t clear that bar because the obligation to repay offsets the cash. The tax questions start when interest enters the picture, when a lender charges less than the IRS expects, or when part of the debt is forgiven.

Loan Proceeds and Principal Payments Sit Outside Your Return

This treatment is the same across loan types. Mortgages, auto loans, student loans, personal loans, business loans. The IRS doesn’t care who lent the money or what you used it for, as long as there is a real obligation to repay. Principal moving in either direction stays off your tax return.

Nothing on the receiving end goes on line one, and nothing on the paying end goes into deductions. The principal is invisible for income tax purposes.

How Interest Is Taxed on Both Sides

Interest is where the tax code shows up. On the borrower’s side, some interest is deductible and some isn’t, depending on what the loan financed.

Home mortgage interest is deductible on up to $750,000 of mortgage debt ($375,000 if married filing separately) for loans taken out after December 15, 2017. Older mortgages may qualify under the earlier $1 million cap.²
Student loan interest is deductible up to $2,500 a year as an above-the-line deduction, subject to income phase-outs. You can claim it without itemizing.²
Business loan interest is generally deductible as a business expense when the borrowed funds are used for a trade or business.

Interest on personal loans, car loans, and credit card balances is not deductible.² Home equity loan interest falls in the non-deductible bucket too, unless the funds were used to buy, build, or substantially improve the home securing the loan.³

On the lender’s side, the picture flips. Interest received is ordinary income no matter what kind of loan produced it. A bank collecting mortgage interest, a friend collecting interest on a personal loan, and a business earning interest on a note receivable all report the same way.

When Forgiven Debt Becomes Taxable

The tax-free treatment of loan proceeds depends on the fact that you have to repay. Remove that obligation and you’re left with money you got to keep, which is an economic gain. The IRS calls it cancellation of debt (COD) income and taxes it as ordinary income.⁴

Say you owe $25,000 on a credit card and the issuer settles for $15,000. The $10,000 difference is COD income you generally have to report. This surprises people because a settlement feels like a win, not like earning $10,000.

When a lender cancels $600 or more, it must send you (and the IRS) Form 1099-C, Cancellation of Debt, with the discharged amount in Box 2.⁵ The IRS treats that figure as presumptively taxable, so if you qualify for an exclusion you have to affirmatively claim it. You owe tax on COD income whether or not the 1099-C arrives; the form is a reporting mechanism, not the source of the tax obligation.

The tax year for the income is the year an “identifiable event” occurs: a bankruptcy discharge, a court-ordered cancellation, expiration of the statute of limitations, a negotiated settlement for less than the full balance, or a formal creditor decision to stop collection and write off the balance.⁶

Exclusions That Can Keep Forgiven Debt Out of Income

COD income is the default, but several exclusions in the code can pull some or all of the forgiven amount back off your return. Each one has its own rules, and claiming any of them requires filing Form 982 with the return for the year of cancellation.⁷ Skip that step and you lose the exclusion.

Bankruptcy

Debt discharged in a Title 11 bankruptcy case is fully excluded. The cancellation has to be granted by the bankruptcy court or occur under a court-approved plan, and you have to be a debtor under the court’s jurisdiction.⁴

Insolvency

You qualify if your total liabilities exceed the fair market value of your total assets immediately before the cancellation. The exclusion is capped at the amount by which you were insolvent. If you were $10,000 insolvent and a creditor forgave $15,000, you exclude $10,000 and report $5,000 as income.⁴ This is where most non-bankruptcy taxpayers land, and it takes careful documentation of every asset and liability held on the cancellation date.

Gifts

When a lender forgives a debt as a genuine gift, the borrower has no COD income.⁸ This shows up most often with family loans. The lender may still need to think about gift tax if the forgiven amount exceeds the annual exclusion.

Qualified Principal Residence Indebtedness

This exclusion sheltered homeowners from tax on forgiven mortgage debt on a primary residence. It expired for discharges after December 31, 2025.⁴ As of 2026, homeowners who lose a home through foreclosure or short sale with recourse debt forgiven can no longer use it. Insolvency and bankruptcy remain available for those who qualify independently.

Student Loan Forgiveness

Forgiveness tied to public service work requirements has a permanent exclusion, which is the statutory basis for why Public Service Loan Forgiveness has never been taxable federally.⁹ For borrowers on income-driven repayment plans, the American Rescue Plan Act of 2021 temporarily excluded all student loan forgiveness through the end of 2025. That provision expired on January 1, 2026.⁴ IDR forgiveness received in 2026 is federally taxable, and state treatment varies.

Disputed Debts

If you genuinely dispute the amount or enforceability of a debt and settle for less, the reduction may not be COD income at all. The theory is that the original debt was never fully established. The burden of proof is on the taxpayer, and a settlement by itself doesn’t prove a good-faith dispute existed.

Below-Market and Interest-Free Loans

Lending money to a family member or employee at no interest, or at a rate below market, has its own tax rule. Section 7872 of the Internal Revenue Code treats the missing interest as though the lender paid it to the borrower (as a gift or compensation) and the borrower paid it back as interest. The imputed rate is the Applicable Federal Rate, published monthly by the IRS. For February 2026, the AFR ranges from roughly 3.50% for short-term loans to 4.61% for long-term loans, depending on duration.¹⁰

Two exceptions keep small family loans out of these rules:

If total outstanding loans between two individuals stay at $10,000 or below, Section 7872 doesn’t apply. The exception disappears if the borrower uses the money to buy income-producing assets like stocks or rental property.¹¹
For gift loans between individuals at $100,000 or below, imputed interest for the year can’t exceed the borrower’s net investment income. If that net investment income is $1,000 or less, it’s treated as zero, which zeros out the imputed interest.¹¹

Neither exception applies if a principal purpose of the arrangement is tax avoidance.¹¹

When the IRS Says It Was Never Really a Loan

All of the above assumes the money you received was actually a loan. If the IRS reclassifies a transfer as a gift or as compensation, the tax consequences change from the start: the money becomes taxable income when received, not a tax-free borrowing. This comes up most with family transfers and with employer-employee arrangements.

The factors the IRS weighs include:

A signed promissory note with specific terms.
A fixed repayment schedule rather than a vague promise.
Interest charged at a market rate.
Security or collateral pledged.
Actual repayment behavior over time.

The IRS has challenged employer-to-employee “loans” where the repayments were funded by guaranteed bonuses that matched the payment schedule exactly. Because the employee never used personal funds to repay, there was no real obligation, and the whole arrangement was recharacterized as compensation.¹²

If You’re the Lender and Don’t Get Repaid

When the borrower doesn’t pay you back, the tax question is whether you can deduct the loss. That depends on whether the loan was connected to a trade or business.

A business bad debt, arising in the ordinary course of the lender’s business, is deductible as an ordinary loss. A nonbusiness bad debt, which covers most personal loans between individuals, is treated as a short-term capital loss regardless of how long the debt was outstanding.¹³ Short-term capital losses first offset capital gains, and any excess can offset up to $3,000 of ordinary income per year ($1,500 if married filing separately), with the rest carried forward.¹⁴

To claim a nonbusiness bad debt deduction, the debt has to be totally worthless. Partial write-offs aren’t allowed for nonbusiness debts. And you have to prove the transfer was a genuine loan, not a gift, using the same factors the IRS applies to the borrower. A lender who never set repayment terms, never charged interest, and never asked for a payment will struggle to defend the deduction.¹⁴

1
Office of the Law Revision Counsel. 26 USC 61 – Gross Income Defined
2
Internal Revenue Service. Publication 936 (2025), Home Mortgage Interest Deduction
3
Internal Revenue Service. Real Estate (Taxes, Mortgage Interest, Points, Other Property Expenses) 3
4
Internal Revenue Service. Publication 4681 (2025), Canceled Debts, Foreclosures, Repossessions, and Abandonments
5
Internal Revenue Service. Instructions for Forms 1099-A and 1099-C (04/2025)
6
Internal Revenue Service. Instructions for Forms 1099-A and 1099-C
7
Internal Revenue Service. Instructions for Form 982 (Rev. December 2021)
8
Internal Revenue Service. Topic No. 431, Canceled Debt – Is It Taxable or Not?
9
Office of the Law Revision Counsel. 26 USC 108 – Income from Discharge of Indebtedness
10
Internal Revenue Service. Revenue Ruling 2026-3 – Applicable Federal Rates for February 2026
11
Office of the Law Revision Counsel. 26 USC 7872 – Treatment of Loans With Below-Market Interest Rates
12
Internal Revenue Service. National Office Technical Advice Memorandum Number 200040004
13
Office of the Law Revision Counsel. 26 USC 166 – Bad Debts
14
Internal Revenue Service. Publication 550 (2025), Investment Income and Expenses