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Free tool

Payment fee calculator for online shops

Compare Montonio, MakeCommerce, Paysera and Stripe fees for your online shop. Enter your number of orders, your average order value and how your buyers pay. The calculator shows your costs per month and per year. You can edit the rates and add your own provider.

Your shop

Examples from the guide:
How buyers pay, %
Total100%
More settings

Monthly cost

Monthly turnover

The calculator covers provider fees and charges only. Compare the effect of declined payments below.

The Excel file holds your inputs, the results and the rates. No contact details needed.

Rates: edit them or add your own provider

These are the public prices excluding VAT, checked on 27 September 2026. If you have negotiated different rates, enter them here. Changes stay on this page only — close it and the prices return to the published ones.

Provider Monthly, € Bank (% + €) EU cards (% + €) Commercial (% + €) UK (% + €) Non-EU (% + €) Pay later, % Dispute, € Remove

An empty field counts as zero. If you leave a payment type blank for your own provider, the calculator uses the EU card rate for it.

Does a pricier provider pay off?

A provider that approves more payments can earn back a higher fee. Compare two providers by fee and acceptance rate.

Provider A
Provider B
Fees
Lost gross profit
Total

Prices from the providers’ public price lists, checked on 27 September 2026, excluding VAT. The calculator is for information only; your contract may set different prices.

How the calculator works

For each payment the calculator uses the provider’s price: a percentage of your average order value plus a fixed fee per transaction. Where the price list has a minimum or maximum fee, it is applied. We add the monthly fee and, if you enter any, the dispute fees.

If a provider does not offer a payment method — Stripe’s standard price list has no Baltic bank payments, for example — the calculator assumes those buyers pay with an EU card. Paysera’s price depends on the number of transactions, and above 750 transactions a month it is set individually.

We checked the prices in the providers’ public price lists on 27 September 2026. They exclude VAT.

If you have negotiated different rates

In the ‘Rates’ section you can overwrite any rate. You can also add your own provider — a bank offer or an Interchange++ price, for example — and compare it with the public prices. Changes stay on this page and are not saved. If you need to keep them, download the Excel file.

Why your average order value matters

For a small order the fixed fee weighs more than the percentage. A fee of 1.5% + €0.25 is 4.0% on a €10 order, 2.1% on €40 and 1.7% on €150. If your shop has many small orders, compare the fixed fee as well as the percentage.

What the calculator does not cover

To learn how to choose a provider and connect it to your books, read the guide E-commerce Payments & ERP: Scaling in the Baltics & EU.

Frequently asked questions

Do the calculator’s prices include VAT?

No. All prices exclude VAT, as shown in the providers’ price lists.

Can I enter my own negotiated rates?

Yes. Edit the rates in the ‘Rates’ section or add your own provider. Changes are not saved, but you can download an Excel file with your own numbers.

Why does Paysera show individual pricing?

Paysera’s public price list covers up to 750 transactions a month. Above that, prices are set individually.

Does the calculator work for a Shopify shop?

Partly. It shows the providers’ standard prices. For a Shopify shop, add Shopify’s third-party fee for external providers, and note that some providers have a separate price list for Shopify.

How does the calculator estimate the effect of declined payments?

It compares two providers: fees on approved payments and gross profit lost on declined payments. The calculation allows for buyers who pay another way after a decline.

How to choose a payment provider and connect it to your ERP — read the full guide →