Calculate credit card or payment processing fees and your net from a sale amount, percentage rate and fixed fee, or find what to charge to net a target.
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Processing Fees Formula
The calculator uses fee per transaction = percentage fee rounded to the nearest cent, with half cents rounded up, plus the fixed fee. Net equals charge minus that fee; batch totals multiply the rounded per-transaction values by the transaction count. Gross-up finds the lowest whole-cent charge that meets the target net under this model. Processor rounding and additional charges can differ; for example, Braintree documents plan-specific rounding rules. Separately, the effective rate from an actual statement expresses all processing fees as a percentage of gross sales:
- Where EFF is the effective credit card processing rate (%)
- PF is the total amount of processing fees per month ($)
- MS is the total amount of monthly sales ($)
For statement analysis, PF should include the relevant percentage, per-transaction and other charges for the same period as MS. An effective rate of 2.5% on $50,000 in sales means $1,250 in processing costs. The widget models only the entered percentage and fixed per-transaction fee; it does not add monthly charges automatically.
The Three Layers of Processing Fees
Card acceptance costs can include interchange, network fees and processor charges. The amount and pricing structure depend on the transaction and your agreement.
Interchange fees are generally paid by the acquiring bank to the card-issuing bank. Rates vary by factors such as card type, merchant category and processing conditions. Visa explains interchange and links its applicable schedules; use current terms relevant to your transactions.
Network fees are separate charges associated with card-network services. Their basis and amount vary; check the applicable schedule or merchant statement instead of assuming a universal rate.
Processor charges cover the processor's services and may combine a percentage, per-transaction amount and other charges. Enter your actual quoted rate and fixed fee when using the calculator.
Pricing Models Compared
Payment processors use different pricing structures. Compare the complete charges in the applicable agreement for your actual card mix and transaction amounts.
Interchange-plus generally passes through interchange and adds processor charges. Assessment and other fees may also apply. A hypothetical quote of interchange plus 0.30% and $0.08 means those two additions are charged on top of the relevant interchange cost; it is not a current market-rate quote.
Flat-rate pricing uses a stated rate structure for covered transactions. Different payment methods, card origins or additional services may have separate terms. The calculator can model a supplied percentage plus fixed fee without selecting a provider or asserting that one pricing model is cheapest.
Tiered pricing assigns different rates to transaction categories. Use the rate for the transactions being modeled; one percentage and fixed fee do not capture a mixed batch with different charges.
The Hidden Cost of Per-Transaction Fees
A fixed per-transaction fee has a larger effective-rate impact on smaller charges. For a hypothetical 2.6% plus $0.10 plan, a $5 transaction costs $0.23, an effective 4.6%. A $100 transaction costs $2.70, an effective 2.7%. These are arithmetic examples, not provider quotes.
For a hypothetical comparison with no additional charges and before cent-rounding effects, 2.9% plus $0.00 costs less than 2.3% plus $0.30 on transactions below $50. The two formulas are equal at $50 because 0.006 × $50 = $0.30. Compare the actual full pricing terms rather than selecting a plan from the percentage alone.
