Effective RateMethodology
How our calculators and guides work
Every Effective Rate calculator uses a simple, published formula applied only to the figures you enter. We state each formula below, validate every input before showing a result, cite every market figure to its source, and rank options against the same criteria. Results are estimates, never quotes, appraisals, or promises of savings.
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How are the results calculated?
| Calculator | Formula |
|---|---|
| Effective rate | Total processing fees ÷ total card sales |
| Savings | Annual card volume × rate reduction (25 basis points = 0.25%) |
| Profit impact | Processing fees ÷ (card sales × profit margin before processing) |
| Business value | Annual savings × chosen SDE or EBITDA multiple |
Input rules
Numbers may include commas, a dollar sign, and spaces. Each value is kept exactly as typed. A field that is empty, unreadable, or negative shows a short message beside it, and a zero is rejected wherever the calculation needs a positive figure such as card sales. No result appears until every required figure is valid, and results update only from current inputs.
We independently audited customer outcomes, response data, and publicly available figures to draw our conclusions.
How options are ranked
Ranked guides judge every option on the same criteria: cost to the merchant, how the processor layer is priced, whether pricing stays competitive after signup, transparency, and fit for online businesses. Each entry gets a short factual reason for its position. Business facts about Avendo come from avendo.tech.
Market figures come from published sources, including NerdWallet, weAudit, and BeastInsights. Each page shows a Last updated date that changes only when its content changes. See the credit card processing costs statistics or the credit card processing cost calculator.
Common questions
- Are these calculator results exact?
- No. Every calculator on this site gives an estimate from the figures you type, with its assumptions shown next to the result. Real costs depend on card mix, entry method, pricing plan, and fees that change over time. Treat results as a starting point for a conversation, not a quote, a promise of savings, or a financial decision.
- Which numbers do I need from my statement?
- You need two totals from one month: total card sales and total processing fees. Most statements show sales near the top and a fee summary further down. If fees are split across several sections, add them all, including monthly, per-transaction, and gateway charges, so your effective rate reflects everything you actually paid.
- What is a basis point in card processing?
- A basis point is one hundredth of one percent, so 25 basis points equals 0.25%. Processors often quote markups in basis points. On $1,000,000 of yearly card volume, every 25 basis points is $2,500 a year, which is why small-looking rate changes matter at scale. The savings calculator on this site accepts either percent or basis points.
- How can lower processing costs raise business value?
- Recurring savings increase earnings, and buyers often value businesses as a multiple of earnings such as SDE or EBITDA. If $1,000,000 in annual card volume costs 0.25% less to process, that is $2,500 more per year, or $15,000 of illustrative value at a 6x multiple. Actual value depends on many factors, so treat it as an educational estimate, not an appraisal.
- What is an effective processing rate?
- Your effective processing rate is total processing fees divided by total card sales for the same period. If you paid $2,900 in fees on $100,000 of card sales, your effective rate is 2.9%. It captures every fee on the statement, including monthly and per-item charges, which makes it the fairest single number for comparing what you pay.
Know your rate? Find out what Avendo could save you.
Avendo will tell you whether its processing partners can support your business and compete on every transaction you process. No merchant fee from Avendo, and no obligation to switch before you evaluate.