Bad Debts: Business vs. Nonbusiness, Worthlessness, and Claims

A bad debt tax deduction lets you write off money you’re owed but will never collect, and the IRS splits these losses into two very different buckets. If the debt came out of your trade or business, it’s an ordinary deduction that offsets any kind of income. If it was a personal loan, it’s a short-term capital loss, and you can only use $3,000 of it against ordinary income each year.¹ Which bucket your loss lands in, whether you can prove the money was really a loan, and whether you claim it in the right year all decide whether the deduction survives.

Business Debts vs. Personal Debts

The first question is whether the debt is connected to your trade or business. A business bad debt is one you created or acquired in the course of running your business. The classic example is an accounts receivable from a customer who never pays. Loans to suppliers, clients, or employees can also qualify if your primary motive for making them was business-related.²

Everything else is a nonbusiness bad debt. Personal loans to family and friends fall here. So do loans you made as an individual investor, and most loans between a shareholder and a closely held corporation, because unless you’re in the business of lending money, the IRS treats shareholder loans as investment activity rather than business activity.¹

The tax consequences diverge sharply from there. A business bad debt is an ordinary deduction with no annual cap, offsetting wages, business profits, investment gains, or any other income in the year the loss happens. You can also deduct a business debt that’s only partially worthless, up to the amount you charge off on your books that year.¹ A nonbusiness bad debt gets none of that flexibility. It has to be completely worthless before you can deduct a dollar, and when you do, it’s automatically a short-term capital loss no matter how long you held it. That loss first offsets any capital gains for the year, and only $3,000 of any remaining loss can offset ordinary income ($1,500 if married filing separately), with the rest carrying forward indefinitely.³ A $30,000 personal loan gone bad can take a decade to fully deduct if you don’t have capital gains to absorb it.

When a Debt Counts as “Worthless”

You can only deduct a bad debt in the year it actually becomes worthless. A late payment doesn’t qualify. Neither does a borrower going through a rough patch. The IRS expects you to show that the debt has no remaining value and that there’s no realistic chance of collecting.

You don’t have to file a lawsuit if you can show a court judgment would be uncollectible anyway.² You do need to document that you took reasonable collection steps, or that trying would be pointless. A borrower’s bankruptcy filing is one of the strongest signals. IRS regulations treat a bankruptcy filing as generally establishing at least partial worthlessness for unsecured debts.⁴ Other things the IRS weighs: the value of any collateral and the debtor’s overall financial condition.

Proving It Was a Loan, Not a Gift

This is where personal bad debt claims most often collapse. Before the IRS asks whether your debt is worthless, it asks whether there was ever really a debt. Hand money to a family member with no written terms, no interest, and no genuine expectation of being paid back, and the IRS will call it a gift. Gifts aren’t deductible.

A bona fide debt requires a real debtor-creditor relationship based on a valid, enforceable obligation to pay a fixed or determinable sum of money.⁵ The IRS looks for the hallmarks of an arm’s-length transaction:

A signed promissory note stating the amount, interest rate, and repayment schedule
Interest at a reasonable market rate; for loans above $10,000, charging at least the applicable federal rate helps
Actual payments on schedule, or documented collection efforts after payments stopped
A borrower who had the financial ability and intent to repay when the loan was made

A promissory note isn’t technically required to claim the deduction, but without one, convincing the IRS that money you handed your brother-in-law was a loan rather than a holiday gift becomes a steep uphill fight. The documentation doesn’t need to be fancy. It just needs to exist.

The Cash-Basis Trap on Unpaid Invoices

One limitation blindsides a lot of small-business owners and freelancers. If you use the cash method of accounting, as most individuals do, you generally can’t deduct a bad debt for income you never received. The rule is straightforward: to take a bad debt deduction, you must have previously included the amount in your income or loaned out your own cash.²

Say a client owes you $5,000 for consulting work and ghosts you. As a cash-basis taxpayer, you never reported that $5,000 as income, so there’s no loss to deduct. The same goes for unpaid salaries, wages, rent, fees, interest, and dividends.²

The analysis changes when actual cash left your pocket. Loan a friend $10,000 that never comes back, and you have a real out-of-pocket loss (deductible, assuming you can prove the loan was bona fide). Accrual-basis businesses that already recorded the revenue have a real loss too, because they already paid tax on income they’ll never collect.

How to Claim a Business Bad Debt

Business bad debts use the specific charge-off method: you deduct a specific debt, in whole or in part, in the year it becomes worthless. For partial worthlessness, your deduction is limited to the amount you actually charged off on your books. You can delay writing off a partially worthless debt to a later year, but you lose the chance to deduct any piece of it once the year of total worthlessness passes.⁶

Sole proprietors claim the deduction as an expense on Schedule C. C corporations use Form 1120, S corporations use Form 1120-S, and partnerships use Form 1065.

How to Claim a Nonbusiness Bad Debt

Report a nonbusiness bad debt on Form 8949, Part I, as a short-term transaction. Enter the debtor’s name and “bad debt statement attached” in column (a), your basis in the debt in column (e), and zero in column (d). The totals carry over to Schedule D.⁷

You also have to attach a separate statement to your return that includes:

A description of the debt, including the amount and the date it became due
The debtor’s name and any business or family relationship between you
The efforts you made to collect
Why you concluded the debt was worthless⁷

Skipping the statement is an easy way to lose a deduction you’re otherwise entitled to. The IRS specifically suggests including evidence such as a borrower’s bankruptcy filing or an explanation of why legal action would not produce any payment.

Getting the Year Right

The deduction belongs in the tax year the debt became worthless, no earlier and no later.² Claim it too soon and the IRS can disallow it because the debt wasn’t actually dead yet. Claim it too late and the deduction is gone.

Pinpointing the year is sometimes hard, especially when a debtor’s situation deteriorates gradually. The IRS weighs the surrounding facts: when did bankruptcy happen, when did collection conclusively fail, when did the debtor’s assets fall short of the obligation? When you’re unsure, lean toward the earlier year and document your reasoning.

If you missed the year entirely, there’s a safety net worth knowing about. The normal window to amend a return is three years from the original due date, but for bad debts and worthless securities, you get seven years from the due date of the return for the year the debt became worthless.⁸ File Form 1040-X, or the matching business form, to claim the deduction you missed.

If the Debtor Later Pays You

Occasionally a debtor surprises you after you’ve already written the debt off and taken the deduction. The Tax Benefit Rule decides whether that recovery is taxable.⁹

You include the recovered amount in gross income for the year you receive it, but only to the extent the original deduction actually reduced your tax. If the bad debt deduction didn’t lower your taxable income in the write-off year, say because other deductions already wiped out your income, the recovery stays out of income.¹⁰ The idea is to reverse a tax benefit you actually got, nothing more.

1
Office of the Law Revision Counsel. 26 USC 166 – Bad Debts
2
Internal Revenue Service. Topic No. 453, Bad Debt Deduction
3
Office of the Law Revision Counsel. 26 USC 1211 – Limitation on Capital Losses
4
eCFR. 26 CFR 1.166-2 – Evidence of Worthlessness
5
GovInfo. 26 CFR 1.166-1 – Bad Debts
6
Internal Revenue Service. Publication 535, Business Expenses
7
Internal Revenue Service. Publication 550, Investment Income and Expenses
8
Office of the Law Revision Counsel. 26 USC 6511 – Limitations on Credit or Refund
9
Office of the Law Revision Counsel. 26 USC 111 – Recovery of Tax Benefit Items
10
eCFR. 26 CFR 1.111-1 – Recovery of Certain Items Previously Deducted or Credited