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Rolling Reserve Calculator

How much cash a rolling reserve ties up, and when it is released.

Tool inputs stay in your browser · optional AI search sends your query

Good to know: A rolling reserve holds a % of each day’s sales for N days. After N days, it releases about as much as it holds back each day.

How to use it (step by step)

  1. 1Fill in the boxes: “Average daily card sales”, “Reserve (%)”, “Hold period (days)”. Example numbers are already there so you can see how it works; replace them with yours.
  2. 2The result updates instantly as you type (on a phone it is below the boxes).
  3. 3The bold line is the main answer. Tap Copy next to any value to copy it.

Words to know

Percentage
A part out of 100. 25% of 200 = 50.
Average (mean) / median
Average = add everything and divide by how many. Median = the middle value when sorted; it is not pulled by extreme values.

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