Eric Kuvykin

Reviewed October 17, 2026. This guide replaces an earlier general overview; the original publication date and URL are retained.

An annual processing budget needs the fee calendar as well as a transaction rate. Model fixed and periodic charges in the months they are billed before judging a seasonal business’s cash needs.

Separate the fee schedule from the sales forecast

Create one schedule for expected sales and another for known contractual charges. Mark monthly service fees, annual charges, equipment payments and any minimum provisions that actually appear in the agreement. Do not assume every provider applies these items. Visa explains that interchange and the merchant discount are different concepts; neither label describes every expense in a merchant’s budget.

Calculate a low-month and high-month example

Assume an illustrative total variable processing cost of 2.5%, a $40 monthly fixed fee and a separate $120 annual fee billed in January. At $10,000 January sales, the modeled charges are $250 plus $40 plus $120, or $410. At $50,000 February sales, they are $1,250 plus $40, or $1,290. The resulting ratios are 4.10% and 2.58%. This difference follows from the assumed fixed billing schedule, not necessarily a changed variable rate.

Keep budgeting accruals separate from bank cash

For management comparison, the business might allocate the annual charge at $10 a month. That presentation does not change the actual January bank outflow of $120. Keep both views labeled. If a minimum applies, obtain the provider’s exact calculation and identify which charges count toward it; adding an assumed minimum on top of the modeled fees can double-count cost.

Use the schedule in the financing conversation

Plot fee outflows alongside payroll, stock purchases and existing repayments before evaluating a cash bridge. A low month may expose fixed obligations even when percentage pricing is unchanged. Compare actual charges with the budget and send unexplained items to the provider with the relevant agreement clause. The useful output is a dated fee calendar and an explanation of seasonal cash pressure, not a claim that the example predicts a merchant’s actual rate.

Sources and related reading

Primary reference: Visa’s explanation of interchange and merchant discount. Worked examples are illustrative analysis, not client results or provider quotes.

Continue with the AMS Florida merchant reading path and alternative financing cost and cash-flow guide.