What is an application for payment (AFP) in construction?

An application for payment (AFP) is the request a subcontractor sends to the contractor for the value of the work done to date, less what has already been paid. It starts the payment timetable under most construction contracts.

What it usually contains

• The cumulative value of work done to the valuation date.
• Variations and instructed extras, valued separately.
• Retention held back, if the contract has retention.
• Previous payments, so nothing is claimed twice.
• The sum applied for this period.

When to send it

The contract sets the valuation or application date, often monthly. Send it on time. In many contracts a late or incomplete application can delay the whole payment, and a valid application can be treated as the start of the payment timetable.

Why the evidence behind it matters

The contractor can agree, reduce or challenge the sum. A claim backed by dated records, photos and approved site entries is much harder to cut than one built from memory at the end of the month.

Common questions

What is the difference between an application for payment and an invoice?

An application for payment asks for the value of work done under a contract and can be assessed and certified by the contractor. An invoice is the demand for payment, often issued after the sum has been agreed or certified. Contracts differ, so check the payment terms.

How often should I send an application for payment?

As often as your contract says, commonly once a month on the valuation date.

This page is general information for UK construction subcontractors and is not legal advice. Contracts differ, so check yours, and take advice on a specific dispute.