Payment Terms for a UK Trade Business — How to Set and Enforce Them in 2026

What Payment Terms Actually Are

Payment terms are the rules that say when you get paid, how you get paid, and what happens if payment is late. They're separate from your price — the price is how much, the terms are the everything else. A complete set of terms answers four questions: when is payment due, what methods you accept, whether anything is owed up front, and what the consequences are for paying late.

Clear terms protect cash flow because cash flow is timing, not profit — a job can be profitable on paper and still sink you if the money arrives 60 days after you've paid for materials and labour. When your terms are agreed before you start, you control that timing. When they're assumed, the customer controls it and will almost always pay you last. Writing terms down also removes the most common late-payment excuse: "I didn't realise it was due yet."

Common Payment Terms for Trades

There's no single right answer — the term you choose depends on the size of the job, who the customer is, and how much you trust them. Here are the options you'll actually use.

Payment on Completion

The customer pays the full balance the day the work is finished and signed off. This is the default for most small domestic jobs — a boiler service, a consumer-unit swap, a half-day of joinery. It's the strongest position for a small trade: you're never carrying a debt for long, and visibly completed work is your best leverage to get paid on the spot. Make it explicit — "payment due on completion of works" is much firmer than saying nothing and hoping.

Due on Receipt

The invoice is payable immediately once issued. Useful when you can't collect on the day — you finished late, the customer wasn't home — but still want the money fast. "Due on receipt" signals there's no grace period. Most people pay within a couple of days, and it gives you a clean position if you need to chase.

7, 14 or 30 Days

A net term gives a fixed window to pay after the invoice date. Shorter terms (7 or 14 days) suit domestic customers and small commercial jobs where you want money in quickly. Thirty days is standard for commercial clients, main contractors and anyone with a finance department, because that's how their accounts payable runs. Don't default to 30 days for a homeowner — there's no reason to give a household a month, and the longer the term, the longer your cash is tied up.

Whatever you pick, be specific about the trigger. "14 days" from what — the invoice date, completion, or when they received it? Always state "within 14 days of the invoice date" so there's no argument.

Domestic vs Commercial: Terms Should Differ

The single biggest mistake is applying the same terms to a homeowner and a main contractor. They behave completely differently and your terms need to reflect that.

Domestic customers are individuals spending their own money. They're usually present, can pay by card or transfer on the spot, and respond to clear, friendly terms. Favour payment on completion or short net terms (7 days) — the relationship is direct and amounts are usually small enough to hold the line on quick payment without damaging goodwill.

Commercial and contractor customers pay through a process. Invoices go to an accounts inbox, get matched against a purchase order, and pay on a fixed run. Thirty-day terms are normal and pushing for payment on completion will just be ignored. Because you're carrying the debt longer, the protections matter more for commercial work: a written contract, a purchase-order number on every invoice, the statutory late-payment rights (below) and, for larger jobs, a credit check before you start. It's also where stage payments earn their keep — billing in chunks as the job progresses rather than carrying the whole amount to the end.

Put Your Terms in Writing — on the Quote and the Invoice

Terms only protect you if the customer agreed to them before the work started. That means they belong on the quote, not just the invoice. If the first time a customer sees "payment due within 14 days" is on the bill, they can reasonably say they never agreed to it. Put the terms on the quote, get the quote accepted, and the terms are part of the deal.

A short payment-terms section on the quote is enough: when payment is due, accepted methods, anything payable up front, and a line about late-payment charges. When the customer accepts the quote — by signing, replying "yes please", or paying a deposit — they've accepted the terms with it. Repeat the same terms on every invoice so they're reinforced at the point of payment. Consistency between quote and invoice is what makes the terms stick.

Deposits and Stage Payments

For anything beyond a small same-day job, you shouldn't be funding the work out of your own pocket. A deposit taken before you start covers materials and secures the booking — common on jobs with significant material costs or a custom order. Stage payments break a larger job into billed milestones (for example, on materials delivery, at a set point in the build, and on completion) so the money flows in as the work progresses and you're never exposed for the full value.

Both deserve their own detailed treatment, which we cover elsewhere. For your terms, the point is to decide the policy up front and write it into the quote: how much deposit, when each stage is billed, and what each stage covers. A customer who's agreed a stage schedule in writing rarely pushes back when the stage invoice lands.

Accepted Payment Methods

State which methods you accept — vagueness here causes delay too. The main options for a UK trade, with the trade-offs:

• Bank transfer (Faster Payments): Usually the best option — no processing fees, money lands within minutes or hours, and it's easy to reconcile. Put your sort code, account number and a clear reference on the invoice so it's frictionless.
• Card (in person or by payment link): Fast and convenient — a card reader or pay-by-link button lets a customer settle on the spot. The cost is the processing fee, typically around 1–2% per transaction, which eats into margin on larger jobs but is worth it for the speed on domestic work.
• Cash: Immediate and fee-free, but harder to track, riskier to carry, and still fully taxable income that must go through your books. Fine for small jobs, impractical for large balances. Never treat cash as a way to keep work off the books — that's a route to serious trouble with HMRC.

For most trades the sweet spot is bank transfer as the default with a card option for customers who prefer it. Cheques are largely obsolete and slow to clear — there's little reason to accept them in 2026.

Your Statutory Late-Payment Rights (B2B Work)

When you work for another business — a commercial client or main contractor — the law gives you automatic rights if they pay late, even when your contract is silent. Under the late-payment of commercial debts legislation, on a business-to-business debt you can charge statutory interest on the overdue amount, set at the Bank of England base rate plus 8%, running from the day after payment was due.

On top of the interest you can claim a fixed compensation sum for the cost of chasing the debt, on a sliding scale tied to the invoice size: £40 for debts under £1,000, £70 for debts between £1,000 and £9,999.99, and £100 for debts of £10,000 or more. You can also claim reasonable recovery costs above that fixed sum. These rights apply automatically — you don't have to have written them into the contract — but it's still good practice to state on your invoice that statutory interest and compensation apply to overdue commercial accounts, because the reminder alone often prompts payment.

Note this applies to B2B work. With a private domestic customer the position is different — you can charge interest if your agreed terms allow for it, so build a late-payment charge into your written terms for domestic jobs rather than relying on the commercial-debt rules.

Retention of Title on Materials

A retention-of-title clause says any materials you supply remain your property until paid for in full. It's a simple line in your terms — for example, "goods and materials supplied remain the property of [your business] until paid for in full" — and it gives you a stronger hand if a customer disputes payment or, in a commercial setting, runs into financial trouble before settling.

It's most useful on jobs with high-value materials not yet permanently installed. Once materials are built into a structure the clause is harder to rely on, but it's still worth having as a deterrent and a fallback — it costs nothing to include and signals you take getting paid seriously.

What to Put on an Invoice to Make Terms Enforceable

An invoice that's vague about terms is hard to enforce. To give yourself the strongest position if you ever need to chase or escalate, every invoice should carry:

• A unique invoice number and the invoice date — the date that triggers your payment term.
• Your business details — name, address, and VAT number if you're registered.
• The customer's name and address, and a purchase-order number on commercial jobs.
• A clear description of the work and the amounts, with VAT shown separately if applicable.
• The exact due date — "payment due by 28 June 2026" is far stronger than "14 days".
• Accepted payment methods and bank details with a payment reference.
• A late-payment line stating that interest and recovery costs apply to overdue accounts.

The combination of an agreed quote that carried the same terms and a clear, dated invoice is what makes your terms enforceable. If it ever goes to a small claim, that paper trail is your case.

Credit Checks for Big Commercial Jobs

Before committing to a large commercial or contractor job on credit terms, check the customer can actually pay. A basic credit check on a limited company — through a standard business credit agency, or even a look at the company's filings — flags a history of late payment, county court judgments or financial distress. For a job worth thousands on 30-day terms, the cost of a check is trivial against the risk of not being paid.

If a check raises flags, you have options: a larger deposit, shorter terms, staged billing, or declining. It isn't about distrust — it's the same due diligence the customer's own suppliers do, and a reputable business won't blink at being asked for trade references on a big first job.

Scripts for Stating Terms Upfront

Most trades hate the money conversation, so they avoid it — and that's exactly how they end up unpaid. State terms as a normal, matter-of-fact part of the quote, the same way you'd mention when you can start. Said plainly, it's never awkward. Some lines you can use:

• On the quote: "Payment's due on completion — I take bank transfer or card, whatever's easiest for you."
• Taking a deposit: "For a job this size I take a deposit to cover the materials, then the balance when it's finished. I'll put it all on the quote so it's clear."
• Commercial terms: "My terms are 30 days from invoice. I'll need a PO number for the invoice — who should I send it to in accounts?"
• If they push for longer: "I can't stretch to 60 days I'm afraid — 30 is my standard. I can stage the billing if that helps with your cash flow."
• Confirming on completion: "All done and tested. Here's the invoice — bank details are on there, and it's payable today as we agreed."

The earlier you say it, the easier it is. Bring up terms while quoting, when nobody's owed anything yet and there's no tension. By the time the work's done, the terms are old news and getting paid is just the customer doing what they already agreed to.

Quick Reference: Which Term to Use When

Frequently Asked Questions

What payment terms should a sole trader use?

For most small domestic work, payment on completion or 7-day terms. Keep your cash cycle short — the smaller your business, the less you can afford to carry unpaid invoices. Only stretch to 14 or 30 days for commercial customers who genuinely pay through an accounts process.

Can I charge interest on a late invoice?

For business-to-business work, yes — statutory interest and a fixed compensation sum apply automatically under the late-payment of commercial debts legislation, even if your contract is silent. For domestic customers you can charge interest only if your written terms say so, so build a late-payment clause into your terms for domestic jobs.

Where should I state my payment terms?

On the quote first, then repeat them on the invoice. Terms only bind the customer if they agreed to them before the work started — putting them solely on the invoice is too late.

Is it rude to ask for a deposit?

No — it's standard practice for any job with real material costs, and customers expect it. State it as routine when you quote and it's never an issue. Funding a customer's materials out of your own pocket is the rude thing to do to yourself.