Invoice Recovery

Customer Not Paying Invoice? Here's What to Do

A clear escalation path from first reminder to full recovery — for UK businesses

21 March 20269 min readProperty Disrepair Claims UK

Direct Answer

If a customer isn't paying your invoice in the UK, escalate through a clear process: informal reminder, formal written chase, letter before action, county court claim, and enforcement. You can recover the full amount plus statutory interest — without a solicitor.

You Did the Work. They Owe the Money. Now What?

There are few things more infuriating in business than completing a job, sending an invoice, and then watching the days and weeks tick by without payment. You've delivered. You've fulfilled your side of the deal. And now you're chasing money that's rightfully yours.

Non-paying customers are a universal frustration — but how you respond makes all the difference. The businesses that recover the highest percentage of overdue invoices are the ones with a clear, structured escalation process.

This guide gives you exactly that.

UK business owner taking action on unpaid invoice — A structured escalation process significantly increases the chances of recovering payment — at every stage.

The Escalation Process: Step by Step

Informal Reminder

Day 1–7 overdue

A polite email or phone call. Many invoices are paid here — clients sometimes genuinely forget.

Firm Written Chase

Day 8–14 overdue

A more direct written reminder. Reference the invoice number, due date, and state that formal action may follow.

Letter Before Action

Day 15–28 overdue

A formal 14-day legal demand. This signals you are serious and prompts payment in a high proportion of cases.

County Court Claim

Day 29+ overdue

Issue via MCOL. The court serves the claim on the customer and they have 14 days to respond.

CCJ + Enforcement

Post-judgment

If they still don't pay, enforce the judgment. Winning a case does not guarantee payment — enforcement is essential.

How to Handle Different Customer Responses

Complete silence / ignoring

Send letter before action immediately. Proceed to court if no response in 14 days.

Promises to pay but keeps delaying

Set a firm final deadline in writing. Don't extend indefinitely — issue proceedings after the final deadline passes.

Claims the work was poor quality

Respond in writing with evidence of completed work. Consider mediation. Proceed to court if unresolved.

Disputes the amount

Provide a detailed breakdown. If still disputed, a judge will assess the evidence and decide.

Claims they never agreed to pay

Compile all evidence of the agreement: messages, emails, partial payments. Proceed with your claim supported by this evidence.

When You Win — Enforcement Is Not Optional

Winning a case does not guarantee payment — enforcement is essential.

The biggest mistake businesses make is winning a CCJ and then passively waiting for payment that never arrives. Enforce immediately after judgment.

Enforcement options include: warrant of control (bailiff), attachment of earnings, third-party debt order (bank freeze), and charging order (against property). For debts over £600, High Court Enforcement Officers are usually more effective than county court bailiffs.

Common Mistakes When Chasing Non-Payment

Chasing by phone only — always follow up in writing so you have a paper trail
Accepting vague promises of payment without a specific date
Waiting too long — the longer you wait, the harder recovery becomes
Not knowing you can add statutory interest and late payment compensation to your claim
Assuming a CCJ means the customer will automatically pay — you must enforce it
Giving up before trying every recovery option available to you

DIY vs Solicitor: The Real Numbers

On a £3,000 unpaid invoice, a no-win-no-fee solicitor takes 20–35% — leaving you with as little as £1,950 from your own money. And that assumes they actually pursue it aggressively enough to collect.

A structured debt recovery tool can simplify this process, helping you generate your claim and follow the correct steps without expensive legal fees. You keep virtually everything you recover — and you stay in control of the timeline.

Frequently Asked Questions

What can I do if a customer won't pay my invoice in the UK?

You can send a formal letter before action giving 14 days to pay, then issue a county court claim if payment is not received. For invoices under £10,000, the small claims track requires no solicitor.

Can I stop work if a customer hasn't paid?

In many cases, yes. If you have a right to suspend services under your contract (or under implied terms), you may be able to halt work until payment is received. Always check your contract terms and seek to formalise this in writing.

What if my customer disputes the invoice?

If a customer raises a dispute, respond in writing setting out why the invoice is valid. If they continue to refuse, you can still proceed with a court claim — the judge will assess the evidence from both sides.

Can I charge a customer for late payment?

Yes. On business-to-business invoices, the Late Payment of Commercial Debts Act allows you to charge statutory interest (8% above base rate) plus fixed compensation of £40–£100 per invoice.

How long should I wait before taking legal action?

Once the invoice payment date has passed, you can send a letter before action immediately. Most advisers recommend giving a 7–14 day grace period after the due date before escalating to a formal demand.

Will taking a customer to court damage my reputation?

Court records for small claims are not publicly searchable in the way many people think. Most businesses find that taking professional, structured action — rather than just chasing informally — actually reinforces their professional reputation.

Stop Chasing. Start Recovering.

If a customer owes you money, start your claim today and take the first step toward getting paid. No more endless chasing — just a clear path to recovery.

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No solicitor required · Fixed fee · Court-ready documents included