Chasing an Invoice From a Sole Trader or Individual: How the UK Process Differs

Most advice on chasing an unpaid invoice quietly assumes your debtor is a limited company. When it's an individual or a sole trader instead, several things genuinely change, not just in tone, but in law: which pre-action rules apply, what forms you must send, how long you must wait, and what you can actually recover if it ends up in court.

This guide covers exactly where the process for an individual or sole trader debtor diverges from the standard playbook, and where it stays the same.

1. Why the debtor type changes everything

A limited company and a sole trader look similar on an invoice, a trading name, an address, an amount owed, but they are legally different kinds of debtor, and that difference runs through the whole recovery process. A limited company is a separate legal person from whoever runs it.

A sole trader is not: there is no distinction in law between the individual and the business they trade under, which is exactly why a different, more protective set of pre-action rules exists for them.

Practically, that means no Companies House filing to check for financial health, no registered office to address formal letters to, and, if it ever reaches court, no corporate shield between the debt and the individual's own money. It also means a mandatory protocol with prescribed forms applies to your letter before action in a way it simply doesn't for a limited company.

None of this changes whether you're owed the money. It changes how you go about collecting it, and getting it wrong, sending the wrong letter, missing a form, or misjudging who you're actually chasing, can cost you time, and in some cases, costs awarded by a court.

2. Work out exactly who owes you

Before anything formal goes out, confirm precisely who your debtor is in law. A trading name on an invoice, "Dave's Plumbing" or "Bright Spark Electrical", is almost never a legal entity in its own right. It's very often just a sole trader's business name, meaning the person who actually owes you the money is the individual trading under it, not the name itself.

If you genuinely can't tell whether you're dealing with a sole trader or a small limited company, that Companies House check takes minutes and settles it before you commit to either process.

3. The early chases are the same

Here's the reassuring part: none of this matters yet at the start of the process. A polite reminder once the invoice is overdue, a firmer written chase if it's ignored, and a costed final demand after that all work exactly the same way regardless of whether your debtor is an individual or a limited company. The divergence only begins once those steps have failed and you're ready to send a letter before action.

For the wording and timing of each of those early stages, see our complete guide to chasing an unpaid invoice in the UK and our payment reminder templates rather than repeating them here. Come back to this guide once those have run their course and it's time to escalate formally.

4. Statutory interest still applies, sometimes

Under the Late Payment of Commercial Debts (Interest) Act 1998, a sole trader owes the same statutory interest as a limited company would, currently 11.75% a year (the Bank of England base rate of 3.75%, checked 5 July 2026, plus the fixed 8% set by the Act), plus fixed compensation on top.

The Act applies to qualifying business-to-business debts, and a sole trader buying goods or services for their business counts.

Where it does apply, work out the exact figure before you escalate further using our guide to statutory interest and compensation, our step-by-step guide to charging interest, or our free late payment interest calculator.

5. Where it diverges: the Pre-Action Protocol

This is the step where chasing an individual or sole trader genuinely departs from chasing a limited company.

Once early reminders and a final demand have failed and you're ready to send a letter before action, an individual or sole trader debtor is covered by the Pre-Action Protocol for Debt Claims, which has applied to business creditors chasing individuals since 1 October 2017. A limited company debtor isn't covered by this specific protocol, only the more general Practice Direction on Pre-Action Conduct.

In practice, that means your letter must enclose a Reply Form and a Financial Statement Form, and it must give the debtor a minimum of 30 days to respond before you can issue a court claim, longer than the notice period that's normal against a company. Skip the forms or shorten the window and a court can penalise you on costs, even in a claim you otherwise win outright.

We cover exactly what the letter must contain, the figures, the statement of account, and both enclosed forms, in full in our letter before action guide, so this page won't repeat it. The point to take from here is narrower but important: when your debtor is an individual, that letter is not optional paperwork, it's a mandatory step with a fixed 30-day clock attached.

6. Responding to a Financial Statement

One outcome that's specific to chasing an individual, and that most advice skips over entirely, is getting a completed Financial Statement Form back. Rather than paying, disputing, or ignoring you, the debtor has set out their income, outgoings, and what they say they can actually afford.

Read it properly before deciding what to do next. A genuine Financial Statement showing real financial pressure changes the calculation: a smaller amount recovered reliably through an instalment plan is often worth more, in money and in time, than the full amount fought for through a court claim against someone with little left to enforce against.

If the figures in the Financial Statement look inflated or don't match what you independently know about the debtor, you're not obliged to accept them. You can still proceed to a claim once the 30-day window has passed, the form simply informs your decision, it doesn't override it.

7. Going to court against an individual

If the 30-day window closes with no payment, no reasonable proposal, and no genuine dispute raised, you're free to issue a claim, generally through Money Claim Online for a straightforward, undisputed debt. The court process itself works the same way regardless of who you're suing. What differs is what a judgment against an individual actually gets you.

A limited company can, in the worst case, be dissolved or wound up, leaving a judgment against it worth very little. An individual can't simply dissolve their way out of a debt the way a company can, personal liability doesn't expire, but their capacity to pay may genuinely be far smaller than a company's, particularly if the Financial Statement they sent you reflected real hardship rather than a stalling tactic.

For the mechanics of filing, current court fees, and realistic timelines, see our small claims court guide. Not sure the numbers stack up against what you'd actually recover from this particular debtor? Our free small claims worth-it calculator weighs the court fee and your time against the likely return before you commit to filing.

And if what's actually holding things up isn't non-payment but a genuine argument about the work itself, that's a different problem with a different answer: see our guide on what to do when a client disputes your invoice before you escalate any further.

8. FAQ