Credit Card Processing Fee Calculator

Enter the amounts that are actually processed

Use gross processed card volume for the selected month. Enter the number of successful transactions separately. Fixed per-transaction charges make the count important: two businesses can process the same dollar volume but pay different fees because one handles many small purchases.

Separate in-person, online, manually entered and other pricing categories when your contract charges them differently. Use the amount the processor applies its percentage to. If that basis includes tax or tips, include those processed amounts rather than only product revenue.

Add monthly gateway, service or account fees that belong in your comparison. Keep equipment rental and optional software charges visible so you can decide whether the same scope is being compared across providers.

Continue with Business Line of Credit Calculator or SBA Loan Calculator for the next calculation.

Choose a pricing model without double counting

For a flat-rate offer, enter the quoted all-in percentage and fixed amount per transaction for each channel. For an interchange-plus comparison, enter the applicable interchange, assessment and processor components separately, or use an effective combined rate taken from a representative statement.

Helcim’s fee documentation distinguishes interchange, network assessments and processor markup. Do not add those components on top of an all-in rate that already includes them.

The calculator does not infer a card mix from your industry or choose the cheapest provider from a changing price database. Its comparison is only as representative as the inputs you enter.

How processing fees are calculated

For each pricing channel:

Transaction fees = processed volume × percentage rate + transaction count × fixed fee.

Add the channel totals, recurring charges and separately entered event fees. Subtract any fee credits actually applied. Divide total fees by gross processed volume to calculate the effective fee percentage.

Refunded sales reduce receipts, but they do not automatically erase the original processing fee. For example, Stripe’s standard-pricing refund guidance says original processing fees are not returned. Other contracts can differ, so enter the fee credit shown by the agreement or statement instead of assuming a universal refund rule.

When the business is a platform or payment facilitator rather than a merchant comparing processor offers, use the payment processing cost-stack guide to separate merchant price from interchange, network, sponsor, processor, risk, operations, and fixed program costs.

Worked example

Suppose a hypothetical offer charges 2.5% plus $0.10 per successful transaction and $30 monthly. You process $10,000 across 200 transactions:

The effective fee percentage is 3%, not 2.5%. If $500 of sales is refunded and no processing fees are credited, modeled receipts after refunds and fees are $9,200. This is not business profit: product costs, payroll, taxes and other expenses are outside that result.

These are illustrative proposal terms, not current advertised rates for a named provider.

Compare offers using the same transaction size

Suppose another hypothetical plan charges 2.9% plus $0.30 per transaction and no monthly fee. At a $50 average transaction, its variable cost is 3.5% of volume. The first plan’s variable cost is 2.7%, plus its $30 monthly charge.

The plans break even at $3,750 monthly volume under that fixed transaction-size assumption. Both cost $131.25 at that point. Above it, the first plan is cheaper in this simplified scenario; below it, the second is cheaper. A different ticket size or channel mix changes the crossover.

Use the business break-even calculator to connect processing expense with pricing and contribution margin. If you operate a platform earning payment revenue, the embedded payments unit economics calculator addresses a different business model.

Refunds, disputes and settlement timing

Keep refunded principal, lost dispute principal and dispute fees separate. The original transaction fee is already counted once; add only genuinely additional event fees. A temporary reserve withheld by a processor affects available settlement cash but is not automatically an expense.

Use a consistent period when comparing statements. Refunds or credits relating to earlier sales can make a month look unusual. The calculator displays such adjustments rather than forcing a misleading ordinary fee percentage when no gross volume is entered.

Inputs, outputs and result meaning

Calculates fees, effective Pct, net Receipts, and break Even Volume from volume, transactions, percentage, and fixed Transaction with visible method, validation, precision, sources, and limitations.

Inputs

Volume

Supported units include entered unit. The supported range is -1,000,000,000 through 1,000,000,000. This field is optional.

Transactions

Supported units include entered unit. The supported range is -1,000,000,000 through 1,000,000,000. This field is optional.

Percentage

Supported units include entered unit. The supported range is -1,000,000,000 through 1,000,000,000. This field is optional.

Fixed Transaction

Supported units include entered unit. The supported range is -1,000,000,000 through 1,000,000,000. This field is optional.

Monthly

Supported units include entered unit. The supported range is -1,000,000,000 through 1,000,000,000. This field is optional.

Refund Principal

Supported units include entered unit. The supported range is -1,000,000,000 through 1,000,000,000. This field is optional.

Ticket

Supported units include entered unit. The supported range is -1,000,000,000 through 1,000,000,000. This field is optional.

Offer A percentage rate

Supported units include entered unit. The supported range is -1,000,000,000 through 1,000,000,000. This field is optional.

A Fixed Transaction

Supported units include entered unit. The supported range is -1,000,000,000 through 1,000,000,000. This field is optional.

A Monthly

Supported units include entered unit. The supported range is -1,000,000,000 through 1,000,000,000. This field is optional.

Offer B percentage rate

Supported units include entered unit. The supported range is -1,000,000,000 through 1,000,000,000. This field is optional.

B Fixed Transaction

Supported units include entered unit. The supported range is -1,000,000,000 through 1,000,000,000. This field is optional.

B Monthly

Supported units include entered unit. The supported range is -1,000,000,000 through 1,000,000,000. This field is optional.

Additional Event Fees

Supported units include entered unit. The supported range is -1,000,000,000 through 1,000,000,000. This field is optional.

Fee Credits

Supported units include entered unit. The supported range is -1,000,000,000 through 1,000,000,000. This field is optional.

Lost Dispute Principal

Supported units include entered unit. The supported range is -1,000,000,000 through 1,000,000,000. This field is optional.

Reserve Held

Supported units include entered unit. The supported range is -1,000,000,000 through 1,000,000,000. This field is optional.

Outputs

Fees

This is the primary result. It is formatted as currency using the calculator’s selected or declared currency context. The visible result uses up to 2 decimal places according to the output rule.

Effective Pct

The visible result uses up to 2 decimal places according to the output rule.

Net Receipts

It is formatted as currency using the calculator’s selected or declared currency context. The visible result uses up to 2 decimal places according to the output rule.

Break Even Volume

It is formatted as currency using the calculator’s selected or declared currency context. The visible result uses up to 2 decimal places according to the output rule.

Fees Each At Break Even

It is formatted as currency using the calculator’s selected or declared currency context. The visible result uses up to 2 decimal places according to the output rule.

The calculator validates and normalizes the labeled inputs before applying the documented calculation model. Keep the result label, unit, selected mode, cited-source date and stated limitations with the answer.

Frequently asked questions