Small Claims Court for an Unpaid Invoice: The UK Money Claim Online Process

If a client still hasn't paid after a proper letter before action, small claims court is the next and usually final step, and for straightforward, undisputed UK business debts, it's a genuinely accessible one.

Most freelancer and small business invoices fall well within the small claims track, which was built specifically for people without a solicitor. This guide covers exactly how Money Claim Online works, what it costs right now, realistic timelines, and, honestly, what winning a judgment does and doesn't get you.

1. When court is the right step (and when it isn't)

Court should be the last stage of a process, not the first response to a late invoice.

It's the right step once you've already sent a reminder, a firm chase, and a compliant letter before action, and the response window on that letter has passed with no payment, no response, and no genuine dispute raised.

If any of that hasn't happened yet, go back and do it: courts expect to see that you gave the debtor a fair, documented chance to pay before you asked them to get involved, and skipping that step can cost you on costs even if you win.

It's also the wrong step if the debt is genuinely disputed: not "they haven't paid," but "they don't agree they owe it."

A dispute about the amount, the scope of work, or whether it was ever agreed at all needs resolving on its own terms first; pushing a disputed invoice straight into a money claim just moves the argument into a more expensive room. For the escalation stages that come before this one, see our complete guide to chasing an unpaid invoice in the UK.

Court is also not the only route left if you would rather not run a claim yourself. Handing the debt to a debt collection agency for a percentage of the recovery is the main alternative, and our guide on using a debt collection agency versus doing it yourself covers when that is the better call.

2. Which system applies: England & Wales, Scotland, or Northern Ireland

This guide covers the process for England and Wales, where Money Claim Online is the standard route. If your debtor is based elsewhere in the UK, a different system applies, and it's worth knowing before you start.

The rest of this guide covers England and Wales. Fees, timescales, and enforcement methods below don't transfer directly to Scotland or Northern Ireland, even though the broad shape of the process, file a claim, wait for a response, get a judgment, enforce it if needed, is similar in all three.

If your debtor is based outside the UK entirely, Money Claim Online isn't available to you at all, our guide to chasing an overseas client for an unpaid invoice covers what that means and what still works instead.

3. Money Claim Online: how it actually works

Money Claim Online (MCOL) is HM Courts & Tribunals Service's online system for straightforward money claims, and it's the route almost every freelancer or small business invoice takes. In outline:

• Register and enter your claim. You'll set out who owes you money, how much, and why: the amount, the invoice it relates to, and any statutory interest and compensation you're adding.
• Pay the court fee. Calculated automatically based on your claim value, payable by card.
• The court serves the claim. Usually by post to the debtor's registered or last-known address.
• The debtor responds, or doesn't. They have 14 days from service to reply. Filing an acknowledgment of service extends that to 28 days, and the parties can agree a further extension on top of that.
• You get an outcome. Payment, an admission (often with a proposed repayment plan), a dispute that moves toward allocation and possibly a hearing, or, most commonly, no response at all, at which point you can apply for default judgment.

Keep this factual and specific: the date, the invoice number, and the amount, not a narrative of how frustrating the whole thing has been. The court wants to see what's owed and why, not the backstory.

4. Court fees, by claim value

The court fee is set by how much you're claiming, including any interest, not a flat rate. It's calculated automatically if you file online, and in most cases you can recover it from the debtor if your claim succeeds and isn't defended.

Checked 5 July 2026. A general update to civil court and tribunal fees is scheduled for 13 July 2026, covering a wide range of fees across the courts system. Confirm the current money claim fee on GOV.UK before you file if that date has passed by the time you read this.

5. Realistic timelines, from filing to judgment

There's no single fixed timeline: it depends entirely on whether the debtor responds, but the two realistic paths look quite different.

Undefended. If the debtor doesn't respond within their window, 14 days, or 28 if they file an acknowledgment of service, you can apply for default judgment straight away. This path is genuinely quick: most of the delay is the fixed response window itself, not court processing time.

Defended. If the debtor disputes the claim, expect the case to move through allocation and, for most small claims, a compulsory referral to HMCTS's free mediation service before it can proceed to a hearing. If mediation doesn't resolve it, budget several months from filing to an actual hearing date, depending on your local court's caseload. Small claims hearings are informal, but they still queue behind everything else in the system.

Either way, a judgment isn't the finish line if the debtor still doesn't pay voluntarily: see enforcement, below.

6. If the claim is defended: mediation and the hearing

Most small claims up to £10,000 in England and Wales are now automatically referred to HMCTS's Small Claims Mediation Service if the debtor disputes the claim: a free, roughly one-hour phone appointment with a trained mediator, with no obligation to settle if it doesn't feel right. It resolves a genuinely large share of disputes before anyone sees a judge, and there's no cost or downside to taking part.

If mediation doesn't resolve it, the case proceeds to a hearing. Small claims hearings are deliberately informal: no wigs, no gowns, and you present your own case in plain language. Crucially, the small claims track carries very limited costs risk: even if you lose, you generally won't be ordered to pay the other side's legal fees, which is exactly why the track doesn't assume either party has a solicitor.

7. Winning vs actually getting paid

This is the part that catches people out, so it's worth being blunt about it: a judgment is a piece of paper that confirms you're owed the money. It is not the court collecting that money for you.

A warrant of control is the most commonly used route: apply, pay the fee, and the court instructs a bailiff, who typically gives the debtor around seven days to pay before visiting their home or business address to identify goods that could be sold to cover the debt.

A third-party debt order works differently: it freezes funds held in the debtor's bank or business account, up to the amount owed, without any visit at all. Which one makes sense depends entirely on what you know about the debtor: cash in a known account points to a third-party debt order; a trading business with visible stock or equipment points to a warrant of control.

This is exactly why an early, well-evidenced claim against a debtor who's still trading and solvent matters more than pursuing a debt from someone who's already struggling: a judgment against a business with no money or assets to enforce against is a moral victory, not a financial one.

8. Before you file

Filing a claim isn't the moment to start pulling your case together; it's the moment you should already have it. Before you file, make sure you can show:

• A clear, evidenced debt. The invoice itself, the work actually delivered, and whatever shows what was agreed: a written contract if you have one, or the emails, messages, and accepted quote if you don't (see our guide to getting paid with no written contract for what counts as evidence). The court needs to see what's owed and why, not take your word for it.
• A compliant letter before action already sent, with its response window already expired and nothing back: no payment, no reasonable proposal, no genuine dispute raised in reply.
• Your interest and compensation calculated correctly under the Late Payment of Commercial Debts (Interest) Act 1998, worked to the day you file rather than to whenever you first drafted the letter: see our guide to statutory interest and compensation on late payments for the current rate and a worked example, or use our free late payment interest calculator to get the exact figure to include in your claim.
• No genuine dispute outstanding. If the client is querying the work itself, rather than simply not paying for it, that needs resolving on its own terms before a money claim: a disputed invoice pushed into court looks premature, and a judge will notice.
• A debtor worth pursuing. A quick check of whether the business is still trading, Companies House filings are free and public, tells you whether a judgment is likely to be collectable at all, before you spend the court fee finding out the hard way.

Get those four things right and a money claim is usually a formality: most debtors who were always going to pay do so once a claim actually lands, and the ones who don't respond at all hand you a straightforward default judgment. If you haven't already sent a letter before action, do that first: see our letter before action guide for exactly what it must contain.

9. FAQ