A certified statement of work completed on a construction contract, used to raise a progress invoice to the client.
An interim payment certificate, or IPC, is the document in construction contracting that certifies the value of work completed to date, less previous certifications, retention and advances, so the contractor can invoice the client for that period. It is usually prepared by the contractor, checked by the consultant and approved by the client.
It matters because contractors in the UAE are paid against IPCs, not against delivery of goods, and the gap between work done, work certified and cash received drives their cash flow. Tracking certified versus uncertified work, retention held and variations claimed is a core finance task, and doing it in spreadsheets per project is slow and error-prone.
In an ERP project for a contractor, the IPC cycle should be modelled explicitly: progress measurement against the bill of quantities, certification, invoicing with retention deducted, VAT on the certified amount, and subcontractor back-to-back certificates. Confirm the platform or its construction add-on can do this before committing; generic ERP sales modules do not.
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