Builder stage payments explained
The short answer
Stage payments spread the cost of a project across the work, so the contractor is not funding the whole job and you are not paying for work that has not happened. They work well when each stage is defined by identifiable, checkable progress rather than by a date, and when the arrangement is agreed in writing before work starts. This guide is general information and is not legal advice.
Key points
- Payments should be linked to completed, identifiable work.
- Vague stages such as 'halfway' invite disagreement.
- Agree the payment schedule before work starts, not during it.
- Variations should be priced and approved in writing before they are carried out where possible.
- Inspect the stage before releasing the payment for it.
- Keep records of every request, approval, payment and receipt.
Published by Kezariq Ltd. See the source links below for official guidance.
Why stage payments are used
Building work involves the contractor buying materials and paying labour long before the job finishes. Stage payments keep cash flow workable for them while keeping your exposure proportionate to what has actually been built.
Large up-front payments shift risk onto you. Where a deposit is genuinely needed — for bespoke items with long lead times, for example — ask what it is for and what evidence you will receive.
Linking payments to identifiable progress
The best stages are ones both sides can look at and agree on: foundations complete, structure to damp-proof course, roof watertight, first fix complete, plastering complete, second fix complete, practical completion.
- Each stage should describe the work it covers.
- Each stage should state its value.
- Each stage should say what evidence releases it, such as an inspection or a certificate.
Avoiding poorly defined stages
Percentage-of-time stages, calendar-based payments and open-ended 'materials on order' requests are difficult to verify. If a stage cannot be inspected, it is hard to say whether it has been earned.
Variations
Changes are normal. Problems come from changes that are agreed verbally and priced afterwards. Record what changed, why, what it costs, and any effect on the programme, and keep the payment schedule updated so the remaining stages still reflect the work left to do.
Check the work before releasing payment
Walk the stage before you pay for it. Where the stage involves work that will be concealed, arrange to see it before it is covered up, and check that any required Building Control inspection has taken place.
Checking finished work is a reasonable thing for a homeowner to do. Testing and certification of electrical, gas and heating installations is not — that belongs to a suitably registered person.
Keep records
- The agreed payment schedule and any revisions to it.
- Every variation, with its price and approval.
- Dated photographs at each stage.
- Invoices, receipts and proof of payment.
- Inspection records and certificates as they are issued.
Agree it before work starts
The time to negotiate payment terms is before anyone is on site. Once work has begun, the practical balance of the conversation changes. If you are unsure about the terms you are being asked to accept, take independent advice — this guide cannot provide it.
Things to check
- Is every stage described by work, not by date?
- Does each stage have a value and a trigger?
- Is the up-front payment proportionate, and what does it buy?
- How will variations be priced and approved?
- Who inspects each stage before payment is released?
- Are you keeping dated photographs and copies of every document?
Keep your build records in one place
Construction Toolkit is coming soon. You can start with the assessment today: read a limited preview for free and choose the optional paid report if you want more detail.
Construction Toolkit — Coming soon
Start assessment · free limited previewImportant
This guide is general information for UK homeowners. It is not legal, planning, structural or professional advice, and it does not take account of your individual circumstances. Rules change and vary between England, Wales, Scotland and Northern Ireland, and by local authority.
KEZARIQ provides guidance and documents you complete and review yourself. It does not manage your project, carry out professional services, or replace an architect, surveyor, structural engineer, planning consultant or other competent professional where one is required. Nothing here guarantees planning permission, Building Regulations approval, prices, contractor performance or any project outcome. You remain responsible for your own project and decisions.