When customers or others don’t pay what they owe your business, you may be able to claim a bad debt deduction to help offset the financial loss. But it isn’t automatic. Businesses must satisfy specific federal tax rules and maintain adequate records to support the deduction.
Not Every Unpaid Debt Is Eligible
Whether an unpaid debt is deductible depends on several factors. First, the debt generally must be connected to your trade or business. Examples include unpaid customer invoices, certain loans to customers or suppliers, and some business-related guarantees.
The debt also must be bona fide. This means there must have been a genuine expectation of repayment when the money was advanced, or credit was extended. Documentation such as invoices, contracts, promissory notes, and payment terms can show the transaction was a legitimate debt rather than a gift or capital contribution.
Additionally, not every business is eligible to deduct unpaid customer receivables. A bad-debt deduction requires tax basis in the debt—generally because you previously included the amount in income or because you loaned cash. A cash-method business usually has no basis in an unpaid fee receivable.
If your business uses the cash-basis method of accounting, you generally recognize income only when payment is received. Because unpaid invoices generally haven’t been included in taxable income, they’re typically not deductible as bad debts.
Accrual-basis businesses generally recognize income when it’s earned rather than when payment is received. As a result, they may be eligible for a bad debt deduction if an amount previously included in income later becomes partially or totally worthless. For partially worthless business debts, a charge-off for accounting purposes generally is required.
How Mixed-Purpose Debts Are Treated
Some debts may involve both business and personal motives. For example, suppose you guarantee a loan for one of your best customers, who also happens to be a close friend. If the borrower defaults, whether the loss is treated as a business or nonbusiness bad debt depends on whether your dominant motivation in making the guarantee was to help your business or your friend.
The distinction is important because nonbusiness bad debts are deductible only if they’re totally worthless. And they’re treated as short-term capital losses, which can generally offset capital gains and up to $3,000 of ordinary income annually ($1,500 if married filing separately), with any excess carried forward.
Document Your Collection Efforts
One of the most important requirements is showing that you’ve made reasonable efforts to collect the debt. Simply deciding that a customer probably won’t pay usually isn’t enough to conclude the debt is worthless.
It’s also critical to keep records of the actions you’ve taken. These may include invoices, reminder notices, collection letters, payment plans, correspondence with attorneys or collection agencies, and information showing the debtor’s financial difficulties, bankruptcy, or insolvency. Going to court isn’t necessary if you can demonstrate that obtaining a judgment would be futile.
If you haven’t consistently documented your collection efforts, there’s still time. Review overdue accounts and make sure your files reflect the steps you’ve taken to pursue payment. This can make a significant difference if the IRS questions your deduction.
For a debt that becomes wholly worthless, the statute of limitations to claim a refund is seven years, not the usual three (Sec. 6511(d)(1)). As of September 2026, a claim for 2019 may still be timely only if the debt became wholly worthless in 2019, the refund is attributable to that deduction, and the claim is filed within seven years of the prescribed return due date, determined without filing extensions. The special period does not apply to a merely partially worthless debt. This is a strong, specific, click-worthy hook that almost no competitor newsletter mentions.
Nonbusiness bad debts are reported on Form 8949 as a short-term capital loss with a supporting statement describing the debt, the debtor, the efforts to collect, and why it became worthless. Business bad debts are deducted on the business return (Schedule C, Form 1120, Form 1065). Naming the forms makes the article rank better and reads as expert.
Review Your Receivables Now
Do you have aging receivables or other potentially uncollectible business debts? Contact our office before year-end to evaluate your options, ensure your documentation is complete, and identify the deductions you may be eligible to claim.