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Payment certificate calculator

Work out an interim certificate: retention, advance recovery, VAT and the amount payable.

Work valued

The revised sum, including approved variations.

Zero for the first certificate.

Contract terms

Fill in the details, then press Calculate.

The certificate

Gross value this certificate
0.00
Less retention this certificate
0.00
Less advance recovery this certificate
0.00
Net before VAT
0.00
VAT at 0%
0.00
Amount payable
0.00

Check against your contract

  • Retention is the percentage of the value to date, up to the limit. Recovery is the percentage of the value to date, up to the advance. This is the method EthioBuild’s payment certificates use.
  • Contracts differ. FIDIC, for example, can start recovery only after a threshold of certified value, and VAT or withholding treatment depends on your contract and tax position. Confirm with your contract and accountant.
  • Materials on site, price escalation and other deductions are not included here.

More free tools

Run the whole project this way

EthioBuild keeps estimates, BOQs, payment certificates, claims, RFIs and site reports together for your whole team.

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