The Fee Calculator helps you preview how fees will be applied before running a real transaction. It uses the configuration of an existing Fee Package to estimate the total amount charged, including a detailed breakdown of each rule, flat fees, percentages, and more. This feature is especially useful when testing changes, validating logic with business teams, or integrating fee previews into your product UI.

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Accessing the Fee Calculator

To open the Fee Calculator, go to the Fees page and click the Manage Tests button (Figure 1).

Figure 1. The button to access the Fee Calculator page.

The calculator tab will open, allowing you to simulate the fee for a given transaction. (Figure 2)

Figure 2. The Fee Calculator tab.

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Available action

From the Fee Calculator, you can:

Run a fee simulation