Trades retention release calendar calculator

Calculate retained pool and release schedule [date,amount] with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Choose the currency for these amounts. Changing it keeps your numbers and does not convert exchange rates.

Use retained pool and release schedule [date,amount] to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Contract sum (USD)
10000
Retained fraction
0.05
Release milestones [ISO due date,share of retained pool]; enter JSON
[["2026-11-01",0.5],["2027-05-01",0.5]]
Retained pool (USD)
$500.00
Release schedule [date,amount] (JSON) (USD)
[["2026-11-01",250],["2027-05-01",250]]

Try another scenario

Contract sum (USD)
15000
Retained fraction
0.06
Release milestones [ISO due date,share of retained pool]; enter JSON
[["2026-12-01",0.4],["2027-06-01",0.6]]
Retained pool (USD)
$900.00
Release schedule [date,amount] (JSON) (USD)
[["2026-12-01",360],["2027-06-01",540]]
Calculation method

Calculation method

Retained pool (USD)

Contract sum×retained fraction, rounded to US cents.

Release schedule [date,amount] (JSON) (USD)

Round each share of retained pool to US cents except final milestone gets remaining US cents; shares sum to one.

Symbols and units
a
Contract sum (USD)
b
Retained fraction
c
Release milestones [ISO due date,share of retained pool]; enter JSON

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • One retained pool released in explicitly supplied milestone shares; no entitlement or payment-delay inference. Supported limits: All numeric inputs and computed intermediates must remain finite. Supported numeric input magnitude is zero or 1e-12 through 1e12 in absolute value; reject values outside this bounded range. All lists/JSON record tables are limited to 100 records unless a stricter bound is stated; reject malformed record arity and wrong member types. Valid milestone dates chronological; nonnegative shares sum to1; amounts nonnegative; retention fraction in [0,1].
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