Some early payment requests are legitimate — usually to order materials with long lead times. Pay the supplier directly where possible, ask for the supplier invoice first, and put any change to the agreed schedule in writing. Be more cautious if requests are frequent, vague, or come with pressure to pay immediately.
Legitimate reasons a builder might ask for early payment
- Ordering bespoke or long-lead materials (windows, roof trusses, kitchens) that a supplier will not release without payment.
- Supplier payment terms that require money up front or on delivery, which the builder has to pass on.
- A larger-than-usual materials bill landing earlier in the job than the payment schedule assumed.
- Genuine cash-flow timing on a small business juggling several jobs — not necessarily a red flag on its own, but worth understanding.
How to say yes safely
- Where possible, pay the supplier directly rather than giving the builder cash to pass on — many builders' merchants will take payment from the customer against the builder's account or order.
- If you must pay the builder, ask to see the supplier's invoice or order confirmation first, showing the amount and what it covers.
- Agree any change to the schedule in writing — a short email confirming 'this payment covers the window order, remaining stage payments continue as per the original schedule' avoids confusion later.
- Keep the total you have paid against the total value of work completed roughly in step — an early payment should not leave you having paid significantly more than the work delivered so far is worth.
When an early request signals cash-flow trouble
A one-off, well-explained request tied to a specific material order is very different from a pattern of requests with no clear justification. If a builder repeatedly asks to be paid ahead of the agreed schedule, cannot explain clearly what the money is for, or asks for the next stage payment before the current one is finished, it is worth treating this as a signal to look more closely rather than an isolated inconvenience.
Small building businesses do genuinely juggle cash flow across several jobs, and this is not automatically a sign of dishonesty — but it does mean your money may be funding a different job rather than yours, which increases your risk if that other job overruns.
Bank detail change fraud — a specific risk to watch for
A well-documented fraud involves an email appearing to come from the builder (or their supplier) stating that bank details have changed, asking you to send the next payment to a new account. These emails can be very convincing and sometimes come from a genuinely compromised email account.
Never change payment details based on an email or text alone. Always confirm any change of bank details by phone, using a number you already have — not one provided in the message asking for the change.
How to decline politely without wrecking the relationship
You are entitled to stick to the schedule you agreed. A polite, factual response protects the relationship far better than ignoring the request or reacting with suspicion: explain that you are keeping to the agreed stage payments, but ask what specifically the money is needed for and whether there is a way to pay the supplier directly instead.
Most reasonable builders will not take offence at this — it is a normal commercial conversation, not an accusation.
Adjusting the schedule in writing
If you do agree to an early or additional payment, update the payment schedule document itself rather than treating it as a one-off side conversation. A simple revised table, dated and agreed by both parties, keeps a clear record of what has been paid, when, and against what.
Practical checklist
- Ask exactly what the payment is for before agreeing to anything
- Request the supplier invoice or order confirmation as evidence
- Offer to pay the supplier directly rather than through the builder
- Confirm any change to the schedule in writing before paying
- Keep a running total of payments made versus work completed
- Never change bank details based on an email or text without a phone call to a known number
- Be more cautious about frequent or vague early requests
- Check the amount requested is proportionate to the item described
- Update your written payment schedule to reflect any change
- Ask what happens to the schedule for remaining stages
Good and bad examples
What good looks like
The builder explains the kitchen units need ordering with a 50% deposit to the supplier, provides the supplier's order confirmation, and you pay the supplier directly by card over the phone.
What to push back on
A text arrives saying 'need next payment early, bank details have changed, please send £4,000 to this new account today' with no explanation and no invoice.
Worked example
Illustrative revised payment schedule after an early materials request
| Stage | Original date | Amount | Revised note |
|---|---|---|---|
| Deposit | Week 0 | £1,500 | Paid as planned |
| Windows ordered | Brought forward to week 2 | £2,800 | Paid direct to supplier, confirmed by order form |
| First fix complete | Week 5 | £3,000 | Unchanged |
| Completion | Week 10 | Final balance | Unchanged |
Commonly missed items
- Not asking what an early payment specifically covers
- Paying the builder instead of the supplier when direct payment was possible
- Not getting the schedule change confirmed in writing
- Assuming a request is fraudulent without checking, or assuming it is fine without checking
- Not keeping a running comparison of payments made versus work completed
Warning signs
- Repeated early payment requests with no clear pattern or justification
- Reluctance to provide a supplier invoice or order confirmation
- Pressure to pay immediately, especially by bank transfer
- An email or text claiming bank details have changed
- Requests for the next stage payment before the current stage is finished
Questions to ask
- What exactly is this payment for?
- Can I see the supplier's invoice or order confirmation?
- Could I pay the supplier directly instead?
- How does this affect the remaining payment schedule?
- Can you confirm any bank details by phone rather than by email?
When to seek professional advice
- You suspect a bank detail change request may be fraudulent
- The builder is asking for a sum well ahead of the value of work completed
- Requests have become frequent and are not being clearly explained
- You have already paid and now have concerns about how the money was used
Official sources
Frequently asked questions
- Is it normal for a builder to ask for money before a stage is finished?
- It happens, usually to cover a specific material order with long lead times or supplier payment terms. It should be explained clearly and, ideally, paid directly to the supplier.
- Should I ever pay a builder in cash for an early request?
- Cash payments are harder to trace and evidence than bank transfers or card payments, and you should ask for a receipt either way. Paying a supplier directly avoids the issue altogether.
- What if I've already sent money to a changed bank account?
- Contact your bank immediately and report it to Action Fraud, as banks can sometimes recall payments quickly after a fraud is reported.
- Can I refuse to pay early without breaching my agreement?
- If your agreement sets out a payment schedule, you are generally entitled to stick to it. Citizens Advice can explain your position in more detail if there is a dispute.
- Does an early payment request always mean the builder is in financial trouble?
- No — many requests are entirely legitimate. It becomes a more serious signal when requests are frequent, vague, or paired with pressure to pay quickly.
Builder Proof UK publishes general educational information for homeowners. It is not legal, structural, surveying, planning, electrical, gas, insurance or financial advice, and it does not replace advice from a suitably qualified professional for your specific project.