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The Fee Calculator previews how fees apply before you run a real Transaction. It uses an existing Fee Package to estimate the total fees. It also shows a detailed breakdown of each rule — flat fees, percentages, and deductibles. Use it to test changes, validate logic with business teams, or build fee previews in your product UI.

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Accessing the Fee Calculator

1
In the Midaz Module sidebar, expand Fees Engine.
2
Click Calculator to open the Fee Calculator page.
You need at least one Fee Package before using the Calculator — the estimator must run against a saved package.

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Why use the Fee Calculator

The Fee Calculator is a read-only tool that does not affect the ledger or create any transactions. Use it to:
  • Validate new fee packages before enabling them in production
  • Test edge cases at minimum and maximum amount boundaries
  • Compare fee structures by running the same transaction through different packages
  • Document expected fees for finance teams or customers
  • Debug fee issues by reproducing scenarios and analyzing calculation breakdowns