Payment Processing Calculators

How to use these payment processing calculators together

Start with the Effective Rate Calculator using numbers from your most recent processing statement. Your effective rate — total fees divided by total card volume — is the single most reliable number for comparing your current processor against alternatives. Once you have that number, use the Processing Fee Calculator to model what the same volume would cost under a different rate structure. If you’re pricing services or invoices and want to make sure processing fees don’t reduce your take-home, the Reverse Calculator shows the gross amount to charge so you receive the exact net you need.

If a switch is on the table, two buyout situations tend to come up. If your current processor has quoted an early termination fee to leave, the Early Termination Fee Calculator runs the breakeven against the lower rate at the new processor. If your POS equipment is on a separate non-cancellable lease, the Lease Buyout Calculator runs the same breakeven against the buyout cost under both Method A (remaining payments) and Method B (remaining payments plus fair market value). The full decision methodology for the ETF path is in the merchant services early termination fee post; the lease-side path is in how to get out of a POS lease.

Before switching processors entirely, there are tactical ways to reduce your processing rate within your current account.

If you want a precise analysis using your actual statement data rather than estimated inputs, the free cost analysis applies these calculations to your real transaction history — including card mix, interchange categories, and all fee line items.

Understanding what your effective rate tells you

Your effective rate is the single most useful number when evaluating your payment processing costs. It captures everything — interchange, network assessments, processor markup, monthly fees, per-transaction charges — in one percentage that you can compare directly to any other processor’s pricing regardless of how their fees are structured. A processor quoting 2.5% interchange-plus with a $30 monthly fee and a processor quoting 2.9% flat with no monthly fee will produce different effective rates at different volumes. Calculating your current effective rate first gives you the baseline to make that comparison honestly.

The alternative to flat-rate processing is interchange-plus pricing, which passes the network cost through transparently and adds a fixed processor markup.

The calculators on this page let you estimate costs using typical inputs. For a precise analysis using your actual statement data — real card mix, real interchange categories, real fee line items — the free statement review applies these calculations to your numbers and delivers a written comparison.

Frequently Asked Questions