Walkthrough · article 16 of 18

Changing your transaction
fee percentage.

When your acquirer's rate changes. The one-field edit, and what it does (and doesn't) touch.

Ibrahim Ölmez Ibrahim ÖlmezFounder · nouz · 4 min read · Updated this week
One number, immediate effect. Edit the transaction fee % on Settings. From that moment, every new revenue entry uses the new rate. Past entries keep their original.

Your transaction fee percentage is a per-business setting that gets applied to every card revenue entry. Updating it is a thirty-second edit that takes effect immediately — but only forward-looking, in keeping with the snapshot pattern.

01 Where to change it

Open Settings → Business profile. The Transaction fee % field is right below the tax rate. Type the new percentage as a decimal (e.g. 1.75 for 1.75%), no percent sign, and click Save. A green toast confirms.

02 What it touches

The new rate applies to every future revenue entry, from the moment of the save. It's applied only to the card (EC) portion of each entry — never to cash (BAR).

No backdating, no recomputation of historical data, no impact on your past P&L. The fee on yesterday's revenue entries was computed with yesterday's rate; today's entries forward use today's rate.

03 Past entries

Each revenue entry stores its own fee snapshot at the moment it was logged. Changing the rate today doesn't backdate. If you genuinely need to correct an old entry (acquirer billed you the wrong rate, you discovered later), open the individual entry and edit its fee field directly.

04 When this happens in practice

Three common scenarios for a rate change:

  • Acquirer renegotiation. You hit a new volume tier or switched providers. Your effective rate drops from 2.0% to 1.7%. Update the field, future entries use the new rate.
  • FX surcharge revision. Your acquirer added or removed an FX margin on non-domestic cards. Effective rate climbs from 1.8% to 2.1%. Update.
  • Discovered your old rate was wrong. You finally read the statement carefully and realised the "1.5%" you typed at signup was the advertised rate, not the effective one. Update to your real effective rate.
Recompute your real rate periodically. Acquirer pricing drifts. A rate that was accurate at signup may be off by 0.3% a year later. Re-do the math (total fees ÷ total card volume) once a year and update.

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