What Affirm is and how it works

Affirm is a buy-now-pay-later service that lets you split a purchase into multiple payments instead of paying the full amount upfront. When you check out at a store or online retailer, you can choose Affirm as your payment method. Affirm then pays the merchant the full amount when ready, and you repay Affirm in installments — usually over 3, 6, or 12 months — with or without interest depending on the offer.

From a tax perspective, Affirm itself is not a tax-deductible expense. You do not report Affirm payments to the IRS. What matters for your taxes is what you bought, not how you paid for it. If you purchased something that qualifies as a business expense or a deductible item — such as office supplies for self-employment or medical equipment — you deduct the purchase itself, regardless of whether you paid Affirm, a credit card, or cash.

Interest charges on Affirm payments are also not deductible for personal purchases. If you use Affirm for a business expense and pay interest, that interest may be deductible as a business expense, but the Affirm platform itself plays no role in that calculation.

Key Takeaways

  • Affirm is a payment method, not a tax-deductible item itself — your taxes depend on what you bought, not how you paid for it.
  • If you purchase something deductible (business supplies, medical equipment), you report the purchase cost on your taxes, whether you used Affirm, a credit card, or cash.
  • Interest paid to Affirm on personal purchases is not tax-deductible, but interest on business purchases may be deductible as a business expense.
  • Affirm does not issue tax documents like 1099s or receipts that you file with the IRS — you keep your own records of what you bought and when.

When Affirm purchases show up on your taxes

Affirm purchases only affect your taxes if the item you bought is itself tax-deductible or a business expense. For example, if you are self-employed and use Affirm to buy a laptop for your business, you can deduct the cost of the laptop on your Schedule C (the self-employment income form). The fact that you financed it through Affirm does not change that.

Similarly, if you buy medical equipment through Affirm and your medical expenses exceed the threshold for deduction (7.5% of your adjusted gross income in 2024), you can deduct the equipment cost. Again, Affirm is just the payment method.

Personal purchases — clothing, furniture, entertainment, meals — are never deductible, regardless of how you pay. Affirm does not change that rule.

Keeping records of Affirm purchases

If you buy something deductible through Affirm, you need to keep records just as you would for any other purchase. Save your Affirm receipt or order confirmation, which shows the date, merchant, and amount. You do not need to report your Affirm payment schedule to the IRS — only the original purchase amount matters for tax purposes.

For business purchases, keep these records in your tax files for at least three years. The IRS may ask to see proof of business expenses during an audit, and your Affirm receipt serves as that proof. You can read receipts from your Affirm account or ask the merchant for a receipt if you need a paper copy.

If you pay interest on an Affirm loan for a business purchase, track that separately. Interest is deductible as a business expense, but only if you can show it was tied to a business purchase. Your Affirm statement will show interest charges, so keep that as well.

Affirm and credit reporting

Affirm reports your payment activity to credit bureaus, which affects your credit score but not your taxes. Missing Affirm payments can hurt your credit and may result in late fees or collection action, but the IRS does not care about Affirm debt the way it cares about unpaid income taxes.

If Affirm sends your account to a collection agency and you settle for less than the full amount owed, the creditor may issue a 1099-C (Cancellation of Debt form) if the forgiven amount exceeds $600. That forgiven debt is generally treated as taxable income, which you must report on your tax return. This is rare for Affirm accounts but possible if you have a large unpaid balance.

Affirm and business deductions

If you use Affirm for a legitimate business expense, the deduction works the same way as any other purchase. You report the cost on Schedule C (for self-employed filers) or on the appropriate business tax form for your entity type. The cost is deductible in the year you made the purchase, not in the years you made the Affirm payments.

For example, if you buy a $1,200 printer in January using Affirm and pay it off over 12 months, you deduct the full $1,200 in January — the year of purchase — not $100 per month as you pay Affirm. This is true for most business assets, though some items (like vehicles or equipment) may need to be depreciated over multiple years rather than deducted all at once. A tax professional can advise on depreciation rules for your specific purchase.

Affirm and personal loans or cash advances

Affirm is not a personal loan, and Affirm payments are not loan payments in the tax sense. You cannot deduct Affirm payments as interest or loan repayment because Affirm is straightforward a payment method for a purchase. This is different from a traditional personal loan, where you might be able to deduct interest in certain situations.

If you use a personal loan or credit card to pay for a deductible item, you still only deduct the item itself, not the loan or interest (with rare exceptions for investment-related debt). Affirm works the same way.

Frequently Asked Questions

Do I have to report Affirm payments to the IRS?

No. Affirm is a payment method, not something you report to the IRS. You only report the purchase itself if it is deductible — for example, a business expense or medical equipment. Affirm does not send tax documents to the IRS on your behalf.

Can I deduct Affirm interest on my taxes?

Interest on personal Affirm purchases is not deductible. Interest on business purchases may be deductible as a business expense, but you need to track it separately and show that the purchase was for your business. Keep your Affirm statements as proof.

What if Affirm sends my debt to collections and issues a 1099-C?

A 1099-C means the forgiven debt is treated as taxable income, and you must report it on your tax return. You may be able to exclude this income if you were insolvent at the time of forgiveness, but you would need to file Form 982 with your return. A tax professional can help you determine if you may have access to for this exclusion.

Does using Affirm instead of a credit card change what I can deduct?

No. Whether you use Affirm, a credit card, cash, or a check, you can only deduct purchases that are deductible under tax law. The payment method does not matter. A personal purchase remains personal whether you pay Affirm or anyone else.

Should I keep Affirm receipts for my taxes?

Yes, if the purchase is deductible. Keep your Affirm receipt or order confirmation along with any other documentation of the purchase. The IRS may ask to see proof during an audit, and your Affirm receipt serves as that proof. Store these records for at least three years.