Unpaid invoicesClient won't pay

Client won't pay. You've already done the work.

The deliverables went over, the invoice went out, and now every email is 'busy this week'. A letter before action is a different kind of email: it states the sum, the basis and a date, and it is what most clients pay on receipt of. Written free, today.

What a typical claim looks like
Invoice for delivered work£1,750
Statutory interest to date£28
Fixed compensation (business client)£70
Paid so far£0
Owed£1,848
Write the letter — free →Two minutes to tell us what happened. The letter is written and shown to you free; posting it and watching the deadline is £15, shown before you pay.
What the letter can put on the table
Owed£1,750
Simple interest at 8% a year£140 a year
Adding up each dayabout +£0.38 a day

Alongside the money itself, courts may award simple interest on money you have been kept out of — commonly 8% a year under the County Courts Act 1984 — and the court fee is typically added to a successful claim. Interest is discretionary. The letter sets this out so the other side can see what ignoring it costs.

In their words

How people describe it when they reach us

used the work, won't pay for it'we've decided not to go ahead' after deliveryhalf the deposit, then silencesays the scope changednew client, big promises, no paymentasked for changes then disappeared

The sorts of things people tell us. Illustrative, based on patterns in the cases that reach us.

The law on your side

Your legal rights when an invoice goes unpaid

In England and Wales an invoice for work done or goods delivered under an agreement is a debt. Between businesses the Late Payment of Commercial Debts (Interest) Act 1998 adds statutory interest and fixed compensation; a formal letter before action is the step the court's pre-action rules expect before a claim.

ActLate Payment of Commercial Debts (Interest) Act 1998, ss.1–2Between businesses, unpaid invoices usually carry statutory interest.

Section 1 generally implies into a contract to which the Act applies a term that a qualifying debt carries simple interest; section 2 typically defines those contracts as ones for the supply of goods or services where both parties act in the course of a business. The rate is set by order — currently 8% above the Bank of England base rate — and a fixed compensation sum per invoice may be added. It does not apply to consumers.

Read it on legislation.gov.uk ↗
Case lawContract law — breach of contractFailing to do what was paid for may amount to breach of contract.

A job, a purchase or a loan is typically analysed as a contract. If one side does not perform a central promise — work not done, money not repaid, goods not handed over — a court may find a breach and will then consider what loss flowed from it. The measure is normally the money you are out of pocket, proved with evidence.

This is general information about the law in England and Wales, not advice about your case. Which provisions apply, and how, depends on the facts.

Their playbook

Four things you'll hear. None of them end it.

We've decided not to use it.

Using it isn't the test; ordering it is. Work done to an agreed brief is payable whether or not they go live with it.

The scope changed, so the price should.

Then the letter sets out the scope. The brief, the approvals, the delivered files. Scope creep they asked for is chargeable; scope they didn't is not a reason to pay nothing.

Cash flow is tight, next month.

A dated deadline beats 'next month'. 14 days to pay or propose instalments, with interest running.

There was no contract.

An email brief and an accepted quote is a contract. The law doesn't require a signed document.

Build the letter while they stall

Five things worth gathering now

The invoice and the agreement behind itQuote, PO, email thread, contract — whatever fixed the price and the terms.
Proof the work was done or the goods deliveredSign-off emails, delivery notes, photos, the fact they've used it.
Every chase, with datesReminders, statements, the 'processing' replies. The letter cites them.
Their exact legal name and registered officeCompanies House for a company; the trading address for a sole trader.
What the delay has cost youInterest is claimable; for business-to-business debts, statutory interest and compensation may apply.
How it works

The letter first. Court only if they ignore it.

1 · TELL US

Your side, your words

What happened, what was agreed, what you are out of pocket. We ask what a court would ask, so the letter says what a court would need to hear.

2 · THE LETTER

Written for you, free

A formal letter before action with a 14-day deadline, setting out what is owed and why. You see it at no charge. Posting it by tracked mail and watching the deadline is £15.

3 · IF THEY IGNORE IT

Court claim, prepared

If the deadline passes: one tap turns the letter into a small claim, drafted, checked and filed. The £15 comes off our fee. The decision is the court's.

What JustClaim is: we prepare and file the paperwork for your claim, for a fixed price shown before you pay. We're not a law firm, this isn't legal advice, and no outcome is ever guaranteed — what you get is the strongest honest version of your case, properly made.

Asked in your words

Questions people in this exact spot ask

Do I have to send a letter before action before claiming?

In practice, yes. The pre-action rules expect a written demand with a reasonable time to respond, usually 14 days, before a claim is issued. It is also the step that gets most invoices paid.

The client is an individual, not a company. Does the Late Payment Act apply?

No — it applies between businesses. A claim against an individual is still a debt with ordinary interest, and the letter is written accordingly.

Can I add interest?

Between businesses, statutory interest at 8% above base rate plus a fixed compensation sum per invoice usually applies automatically. Otherwise a court may award simple interest, commonly 8% a year. The letter sets it out either way.

They dispute the work, not just the payment.

Then the letter answers the dispute: what was agreed, what was delivered, the sign-off. A genuine dispute is settled on the evidence; a dispute raised only when the invoice is chased usually isn't much of one.

How much does it cost if it goes further?

If the letter is ignored, a court claim has a court fee set by the amount: £35 up to £300, £50 up to £500, £70 up to £1,000, £115 up to £3,000. If you win, the fee is normally added to what the other side is ordered to pay. Our fixed price is shown before you pay anything.

Is the letter really free?

Yes. Tell us what happened and the letter before action is written and shown to you at no charge. If you want us to post it by tracked mail and watch the 14-day deadline, that is £15, shown before you pay — and it comes off our fee if it later becomes a court claim.

Invoice still unpaid?

Tell us what happened. The letter before action is written free and shown to you today; posting it and watching the deadline is £15.

Write the letter — free →