Every time a customer swipes a card, taps a phone, or checks out online, a payment processor takes a cut. Those charges add up fast, and many business owners don’t realize they can deduct merchant fees in full as an ordinary business expense, lowering their taxable income.
Merchant processing fees, including the percentages and per-transaction charges from Stripe, Square, PayPal, and your card processor, are fully deductible as ordinary and necessary business expenses. Record them as a separate expense rather than netting them against revenue.
What counts as a merchant fee
“Merchant fees” is shorthand for the costs of accepting electronic payments. They are an ordinary and necessary expense for almost any business that sells to customers, which makes them deductible. Common types include:
- Interchange fees set by the card networks (a percentage of each sale).
- Per-transaction fees charged on top of the percentage (for example, a flat amount per swipe).
- Monthly or gateway fees for keeping a payment account or online checkout active.
- Chargeback and dispute fees when a customer reverses a payment.
- Hardware and software costs for card readers, point-of-sale terminals, and processing apps.
- Currency conversion or cross-border fees on international sales.
If you pay it to accept money from customers, it almost certainly qualifies as a deductible business expense.
Why merchant fees are deductible
The tax code lets you deduct expenses that are “ordinary and necessary” for carrying on a trade or business. Ordinary means common and accepted in your field; necessary means helpful and appropriate. Accepting card and digital payments is standard practice today, so the fees clearly meet both tests. The IRS explains the ordinary-and-necessary standard in its guidance on deducting business expenses.
The mistake that costs you the deduction
Here is the trap. Most processors deposit your sales net of fees. If you sell $1,000 and the processor keeps $30, you might see only $970 land in your bank account, and you may be tempted to record $970 of revenue. That quietly buries your fee deduction and understates your gross sales.
The correct approach is to record the full $1,000 as revenue and the $30 as a separate merchant fee expense. Same net income, but now your books are accurate, your gross receipts match your processor reports, and the deduction is clearly documented if you are ever questioned.
Gross vs net recording: a worked example
| Item | Wrong way (net) | Right way (gross) |
|---|---|---|
| Revenue recorded | $970 | $1,000 |
| Merchant fee expense | $0 | $30 |
| Reported gross sales | Understated | Accurate |
| Net profit impact | $970 | $970 |
| Audit/reconciliation risk | Higher | Lower |
Net profit is identical either way, but the gross method keeps your reported revenue in line with the 1099-K your processor files, which is the number the IRS sees. The 1099-K reporting thresholds have changed in recent years, so verify the current-year figure on IRS.gov.
Where to claim merchant fees on your return
Merchant fees usually go in the “other expenses” or a dedicated bank/processing fees line of your business return. The exact form depends on your entity:
- Sole proprietors and single-member LLCs: Schedule C, often under “Other expenses” or a bank/merchant fees category.
- Partnerships and multi-member LLCs: Form 1065 as an ordinary business deduction.
- S corporations and C corporations: Form 1120-S or Form 1120 as a deductible operating expense.
Whatever the form, keep the deduction consistent and clearly labeled so you can tie it back to processor statements. For more on categorizing costs correctly, see our guide to business deductions.
Keep records that survive an audit
A deduction is only as strong as the records behind it. To protect your merchant fee write-off, hold onto:
- Monthly processor statements showing total fees charged.
- Your 1099-K and a reconciliation to your recorded gross sales.
- Bank deposits matched to gross sales and fee amounts.
- Invoices for card readers, terminals, and processing software.
Good bookkeeping habits make this effortless, and most accounting software can import processor data automatically so nothing slips through.
Don’t overlook related deductible costs
Merchant fees are rarely the only payment-related cost you can deduct. Many businesses also write off invoicing software subscriptions, accounting tools, and bank service charges. These small recurring expenses add up to real savings, and they are easy to miss. Folding them into your broader tax planning ensures nothing is left on the table.
Frequently asked questions about merchant fees
Are credit card processing fees tax deductible?
Yes. Credit card processing fees are an ordinary and necessary business expense and are fully deductible. This includes interchange fees, per-transaction charges, monthly gateway fees, and chargeback fees. Record them as a separate expense rather than netting them against your sales revenue.
Are Stripe, Square, and PayPal fees deductible?
Yes. Fees from Stripe, Square, PayPal, and similar processors are deductible business expenses when the payments relate to your trade or business. Pull the fee totals from each processor’s monthly statements and record them as merchant or processing fees on your return.
Should I record sales gross or net of fees?
Record sales at the gross amount and book the merchant fee as a separate expense. This keeps your reported revenue aligned with the 1099-K your processor files, makes reconciliation easier, and clearly documents the fee deduction. Net income is the same, but your books are far cleaner.
Can personal payment app fees be deducted?
Only fees tied to business transactions are deductible. If you use a payment app for both personal and business purposes, deduct only the business-related fees and keep records that separate the two. Personal payment fees are never deductible as a business expense.
What if my fees were deducted before deposit?
That is normal. Most processors deposit sales net of fees. To capture the deduction, record your gross sales as revenue and the withheld fees as an expense, using your processor’s statements as the source. The net deposit will then reconcile correctly to your books.
Book a free consultation
Unrecorded merchant fees are one of the most common missed deductions for product and service businesses alike. Tranzesta’s tax team makes sure every legitimate write-off is captured and documented for US and UK clients. Book a free consultation and we’ll review your processor statements for deductions you may be missing.
Disclaimer: This article is for general informational purposes only and does not constitute tax, legal, or accounting advice. Tax rules and figures change and depend on your situation and tax year. Always verify current IRS figures and consult a qualified tax professional before acting.
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