Procurement milestone invoice exposure calculator

Calculate cumulative cash paid and cumulative supplied accepted value 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 cumulative cash paid and cumulative supplied accepted value to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Milestone snapshots in date order: name, date, cash paid increment $, accepted-value increment $, current guarantee amount $
M1,2026-10-01,200,0,50 M2,2026-10-10,500,700,50
Cumulative cash paid ($)
$700.00
Cumulative supplied accepted value ($)
$700.00
Final paid value beyond accepted value and current guarantee ($)
$0.00
Peak snapshot uncovered paid value ($)
$150.00
Uncovered paid value by milestone ($)
M1: 150.00; M2: 0.00

Try another scenario

Milestone snapshots in date order: name, date, cash paid increment $, accepted-value increment $, current guarantee amount $
M1,2026-10-01,200,0,0 M2,2026-10-10,500,700,50
Cumulative cash paid ($)
$700.00
Cumulative supplied accepted value ($)
$700.00
Final paid value beyond accepted value and current guarantee ($)
$0.00
Peak snapshot uncovered paid value ($)
$200.00
Uncovered paid value by milestone ($)
M1: 200.00; M2: 0.00
Calculation method

Calculation method

Cumulative cash paid ($)

Sum supplied cash-paid increments.

Cumulative supplied accepted value ($)

Sum supplied accepted-value increments in the same valuation basis.

Final paid value beyond accepted value and current guarantee ($)

max(0,cumulative paid−cumulative accepted−last snapshot guarantee).

Peak snapshot uncovered paid value ($)

Maximum non-negative snapshot difference after the supplied guarantee offset.

Uncovered paid value by milestone ($)

Recompute each date snapshot, treating its guarantee as a current absolute amount rather than an increment.

Symbols and units
a
Milestone snapshots in date order: name, date, cash paid increment $, accepted-value increment $, current guarantee amount $

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

  • A supplied paid-versus-accepted-value/guarantee snapshot. The guarantee offset is an input assumption, not a finding that security is enforceable, liquid or sufficient to prevent loss.
Are these inputs private?

These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.

Further reading

OECD: procurement performance and contract-record background; calculations follow the displayed rules ↗

Background reading; this does not imply endorsement or independent review of SumFizz.

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