Effective rate
Your true cost of processing: total fees divided by total sales volume.
The effective rate is the single most useful number for comparing processors: divide all the fees you paid in a period by your total card volume, then multiply by 100. It captures interchange, markup, monthly fees, and assessments in one figure, so it cuts through headline rates.
How it works
$45 of monthly charges on $5,000 of volume is 0.9% before a single transaction fee is counted. That is the first thing that distorts an effective rate: leave the fixed monthly fees out and the number flatters whoever calculated it, and the smaller you are the more they matter. The second is who is doing the sums. A rep working out your current effective rate has every reason to include each fee in yours and none in theirs. Rebuild both figures from the actual debits on your bank statement.
Take one full statement month and add up every charge the processor took: the percentage and per-transaction fees, monthly account and gateway fees, PCI and statement fees, batch fees, chargeback fees, and any monthly minimum shortfall. The denominator is gross card volume for the same month, before refunds are netted out. Run it for three consecutive months, because a single month is distorted by annual charges and by whatever card mix your season brings.
The effective rate is the one figure that survives a change of pricing model, which is what makes it the right basis for holding a flat-rate quote against an interchange-plus one. It prices in everything a headline rate leaves out. So when a sales rep gives you a number, hand over last month's statement and ask what your effective rate would have been on that exact volume and transaction count, with their monthly fees included.
Worked example
March: $52,000 across 1,300 card sales. The statement shows $1,196 in transaction fees, a $25 monthly account fee, a $20 gateway fee, and a $99 annual PCI fee that happened to be billed that month. Fees total $1,340. Divide by $52,000, multiply by 100, and your effective rate is 2.58%. The rate on your contract says 2.30%.
Frequently asked questions
- What is a good effective rate for a small business?
- Roughly 2.2% to 2.8% is competitive for a typical small business taking a mix of consumer cards, and anything above 3.5% is worth investigating. Small average tickets and card-not-present sales push it up legitimately, as does a customer base on premium rewards cards. Compare yourself against businesses that sell the way you do.
- Why is my effective rate higher than the rate I was quoted?
- The quoted rate covers only the percentage taken on each sale. Your effective rate includes the fixed per-transaction fee and every monthly charge on top, and on a small average ticket the per-sale fee alone can add half a percentage point or more. Monthly account, gateway, PCI, and statement fees add the rest. They hit hardest in a quiet month.
- Should refunds and chargebacks be included when calculating an effective rate?
- Include the fees, exclude the reversed amounts. Use gross card volume as the denominator and count every fee you were charged, including chargeback fees and any transaction fee the processor kept on a refund. Netting refunds out of volume makes your rate look worse than it is, and it stops the figure comparing cleanly with a quote.