How to Reduce Payment Processing Fees

To reduce payment processing fees, start by calculating your effective rate (total fees divided by card sales), then ask for interchange-plus pricing, cut avoidable downgrades and junk fees, and renegotiate the processor markup with a competing quote in hand. Interchange is set by the card networks and cannot be negotiated, but almost everything layered on top of it can.

What are you actually paying on each card sale?

Every card payment carries three layers of cost: interchange, paid to the bank that issued the customer's card; network assessment fees, paid to Visa, Mastercard and the other card brands; and your processor's markup. Only the markup and the processor's own fees are negotiable, so that is where savings come from.

Interchange is the largest layer and the one most owners never see itemized. For debit cards the Federal Reserve publishes the numbers: in 2024 the average debit interchange fee across all networks was $0.34 on an average $46.32 transaction, or 0.73% of the sale. Debit cards from large banks are capped under Regulation II at 21 cents plus 0.05% of the transaction, plus a one-cent fraud-prevention adjustment, and averaged $0.23 (0.47%), while cards from smaller exempt issuers averaged $0.51 (1.21%). Credit card interchange is not capped and runs higher, especially on rewards and business cards.

That gap is why two shops with identical sales can pay very different totals: the mix of debit versus credit, card-present versus keyed-in, and consumer versus corporate cards changes the interchange bill before the processor adds a cent.

How do you calculate your effective processing rate?

Your effective rate is total processing fees for the month divided by total card sales for the same month. It is the only number that lets you compare processors honestly, because it captures every per-transaction charge, monthly fee and surcharge, not just the headline rate on the sales sheet.

Here is a worked example. A shop runs $40,000 in card sales in a month. Its statement shows $940 in percentage and per-item charges, plus a $25 monthly fee, a $10 statement fee, $40 in batch fees and a $39.95 PCI non-compliance fee. Total fees are $1,054.95, so the effective rate is $1,054.95 ÷ $40,000 = 2.64%. The $114.95 in flat fees alone adds almost 0.3 percentage points; on $480,000 of annual card volume that is about $1,380 a year that has nothing to do with interchange.

Pull three recent statements and run the calculation for each month. If the rate jumps in months with more keyed or online sales, downgrades are part of your problem; if it stays high on a steady card mix, the markup is.

Flat-rate, tiered or interchange-plus: which pricing costs less?

Interchange-plus pricing usually costs the least once card volume is meaningful, because it passes interchange through at cost and adds a fixed, visible markup. Flat-rate pricing is simplest for very small or seasonal sellers, and tiered pricing is the hardest to audit because the processor decides which transactions fall into its expensive tiers.

Flat-rate (one percentage plus a per-swipe fee on every card): predictable and common with all-in-one payment apps. You overpay on cheap debit transactions to subsidize expensive rewards cards.
Tiered (qualified, mid-qualified and non-qualified rates): a low qualified rate is advertised, but rewards, business and keyed cards are often pushed into the higher tiers, which is where many unexpected costs hide.
Interchange-plus (actual interchange plus a stated markup, for example a percentage and a few cents per transaction): every line can be checked against published interchange tables, so you can see exactly what the processor earns.

When you ask for quotes, give every processor the same recent statement and ask for the markup in writing as interchange plus a percentage and per-item fee. That turns a confusing sales pitch into a number you can compare.

Seven ways to lower processing fees without losing sales

The fastest savings come from cutting the fees you control: the processor markup, avoidable downgrades and fixed monthly charges. Card mix and customer behavior take longer to change, but they compound over a year.

Get a competing quote and negotiate the markup. Processors routinely lower markups for merchants who show a written offer from a competitor.
Remove junk fees. Ask for statement, batch, "regulatory" and annual fees to be waived, and check the contract for an early-termination fee before you switch.
Stay PCI compliant. Completing the annual self-assessment questionnaire usually removes the monthly non-compliance charge.
Prevent downgrades. Take cards in person when you can, use address verification on keyed and online sales, and settle batches daily so transactions qualify for the lowest interchange category.
Send Level 2 or Level 3 data on B2B sales. If you sell to businesses that pay with corporate or purchasing cards, passing tax and invoice details can qualify those sales for lower interchange.
Steer large invoices to ACH. A bank transfer usually costs far less than a card on a big B2B invoice; offer it as the default for large balances.
Treat surcharging carefully. Card network rules cap credit card surcharges and do not allow them on debit cards, and some states restrict them, so confirm the current rules with your processor before adding one.

Lower fees also make your card volume work harder if you ever need funding. Steady card deposits are what many revenue-based funders read first, and some advances are repaid as a small holdback from daily card sales, so a clean, low-cost processing setup helps on both sides. The Broker Shop is a funding broker, not a lender: one application is compared across 50+ funders, so you see more than one offer. If you are still choosing a provider, start with how to accept credit card payments and how to choose a POS system, then compare the processing quote the way this guide describes.

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The bottom line: Processing fees fall when you measure your effective rate, insist on interchange-plus pricing, strip out downgrades and junk fees, and negotiate the markup with a competing quote, because interchange is fixed but almost everything above it is not.

Frequently asked questions

What is a good effective rate for credit card processing?

There is no single benchmark, because interchange varies with your card mix, how cards are taken and your industry. The useful test is your own effective rate over several months compared against a written competing quote priced on the same statement. If your rate rises when the card mix has not changed, the processor markup or added fees are the likely cause.

Can a small business pass credit card fees on to customers?

Sometimes. Surcharging credit cards is allowed in most states if you follow card network rules on disclosure and maximum amounts, but surcharges are not permitted on debit cards, and a few states restrict the practice. Cash-discount programs work differently. Rules change, so confirm current state law and network rules with your processor before you add any fee.

Sources: Board of Governors of the Federal Reserve System — Regulation II: Average Debit Card Interchange Fee by Payment Card Network (2024 data) (all networks: $0.34 average fee on a $46.32 average transaction, 0.73%; covered issuers $0.23, 0.47%; exempt issuers $0.51, 1.21%) · Federal Reserve — Regulation II (Debit Card Interchange Fees and Routing)