Credit Card Processing Fee Calculator
Calculate credit card processing fees: percentage, fixed per-transaction, total net revenue. Free fee calculator for small businesses accepting card payments.
Inputs
Enter the minimum numbers needed to get a result.
Formula and example
Fee = Amount × (Rate/100) + Fixed Fee. Net = Amount - Fee. Effective Rate = Fee / Amount × 100
A $100 sale at 2.9% + $0.30 = $3.20 in fees. Net revenue = $96.80 per transaction. Effective fee rate = 3.2%.
Methodology & assumptions
Last updated: 2026-06-13Calculation method
Calculates credit card processing fees using standard percentage + fixed fee model (interchange-plus or flat-rate). Monthly totals are based on transaction volume. Does not account for chargeback fees, monthly gateway fees, PCI compliance fees, or batch fees.
Data sources
Uses the numbers you enter and standard small-business finance formulas. Benchmark comparisons use HustleFin industry benchmark pages where available.
Limitations
Estimate for planning purposes. Actual fees vary by processor, card type (rewards cards have higher rates), and monthly volume. Qualified/Non-qualified rates not applied. Does not include Amex-specific rates or international card fees.
Input definitions
- Transaction amount: Average sale or transaction amount.
- Processing fee rate: Merchant processing rate (Stripe, Square, etc.).
- Fixed fee per transaction: Per-transaction fixed fee (typically $0.10-$0.30).
- Monthly transactions: Number of card transactions per month.
Frequently asked questions
What are typical credit card processing fees?+
Typical rates are 1.5%-3.5% + $0.10-$0.30 per transaction. Stripe charges 2.9% + $0.30. Square charges 2.6% + $0.10. High-volume businesses can negotiate lower rates. Rewards and corporate cards may cost more.
Should I pass processing fees to customers?+
Surcharging (passing fees to customers) is legal in most US states but may be restricted in some. All major card networks allow discounts (positive incentive) but rules differ for surcharges. Check your state laws and card network agreements.
How do credit card fees affect my profit margin?+
Fees directly reduce your net revenue per sale. On a $50 transaction at 2.9% + $0.30, fees eat $1.75 = 3.5% of revenue. For low-margin businesses, this 3.5% can significantly impact overall profitability.
What's the difference between flat-rate and interchange-plus pricing?+
Flat-rate charges one percentage (e.g., 2.6%) for all card types. Interchange-plus charges the actual interchange rate + a markup (e.g., 0.3%). Interchange-plus is usually cheaper for high-volume merchants but more complex.
How can I reduce credit card processing fees?+
Negotiate with your processor (especially at higher volumes), use interchange-plus pricing, batch settle daily to reduce risk batches, and consider a flat-rate provider like Stripe for small volumes.
Related guides
Go deeper with in-depth guides on the concepts behind this calculator.
Continue the workflow
Estimate margin, convert margin to markup, then check the sales volume needed to break even.