How much to charge to cover credit card fees

Divide, don't add. To receive $5,000.00 after 2.9% + $0.30, invoice $5,149.64. Adding 2.9% and $0.30 gives $5,145.30, which leaves you $4,995.79: $4.21 short.

Your payment

Stripe US card: 2.9% + $0.30.

Invoice$5,149.64to receive $5,000.00
  • Fees on this payment$149.64
  • You receive$5,000.00
  • Fees as a share of the invoice2.91%

If you add the percent instead: invoice , receive , short.

The numbers, worked

The processor takes its percent of the whole invoice, including the part you added to cover the fee. Add 2.9% and $0.30 to $5,000.00 and you invoice $5,145.30; the fee on that is $149.51, so $4,995.79 lands.

The amount that lands exactly is (what you want + fixed fee) ÷ (1 − percent): ($5,000.00 + $0.30) ÷ 0.971 = $5,149.64. Its fee is $149.64, and you receive $5,000.00.

The gap grows with the rate and the invoice, which is why the calculator shows what adding the percent would leave next to the exact amount.

Rates as published on Stripe pricing, PayPal business fees, Square's fees, read October 6, 2026. Rates change and can differ for your account, so check yours. Grossup is arithmetic, not tax, legal or financial advice.

Questions

What is the formula?

Invoice = (amount you want + fixed fee) ÷ (1 − percent fee as a decimal). At 2.9% + $0.30 that is (amount + 0.30) ÷ 0.971.

Can I put the fee on its own line?

Some processors and places limit adding a fee to a client's bill, so check the rules that apply to you. Folded into your price or shown as a line, the amount to invoice is the same.

How do I find my processor's rate?

Your processor's pricing page or a recent payout shows it. The buttons above fill in Stripe's, PayPal's and Square's published card rates for invoices.