When a customer won't pay: a UK sole trader's guide to getting paid (and not getting caught out again)
You did the work. You sent the invoice. And now there's silence.
If you've been self-employed in the trades for more than a year or two, you already know the feeling — the job's done, the customer was friendly enough on the day, and then the money just doesn't turn up. Sometimes it's a genuine oversight. Sometimes it's "no work, no money" and a blocked number. Either way, you're the one left out of pocket, and the amounts are often small enough that chasing feels like more hassle than it's worth.
This guide is about three things: what your rights actually are as a UK sole trader, how to chase money in a way that works without wrecking your week, and — the part most advice skips — the small changes at the booking stage that stop most of this happening at all.
Why this hits sole traders harder than anyone
When you're not on a payroll, even a short delay leaves a hole. There's no finance department to absorb it, no buffer between the unpaid invoice and your own bills. And the scale is bigger than most people assume: a 2025 study by accounting software firm FreeAgent, which analysed millions of real invoices sent between September 2024 and August 2025, found that 62.6% — nearly two-thirds — were paid late. A separate survey of 1,000 sole traders and small business owners by insurer Hiscox found the largest group were chasing between 10 and 20 late payments at any one time. That chasing is time you're not billing for, so the late payment costs you twice.
And the emotional tax is real. Asking for money you've already earned somehow feels like begging, even though it's the most reasonable request in the world. So a lot of sole traders just... don't. They write it off, mutter about it, and move on. Understandable. But it's worth knowing that the law is more on your side than you might think.
What your rights actually are
A few things worth knowing before you write anything off:
You're allowed to charge interest and compensation on late commercial payments. If your customer is another business, the Late Payment of Commercial Debts legislation lets you add statutory interest (currently set well above base rate) plus a fixed compensation sum per invoice. Most sole traders never do this, usually for fear of souring a relationship they depend on — which is a fair calculation when you want repeat work. But if a customer has already shown you they're a serial non-payer, or it's a one-off domestic job you'll never repeat, there's far less reason to hold back.
A no-show or wasted call-out can be chargeable — if you set it up right. If your terms say a customer is liable when they don't show or haven't prepared the property so you can do the job, that's a position you can stand on. The catch is that the term has to exist before the job, somewhere the customer reasonably saw it. Buried on a website they never read is weaker than something they actively agreed to when booking.
Small claims is there for exactly this. For the kind of sums sole traders deal in, the small claims track is designed to be used without a solicitor. The snag — and it's a big one — is that you can't take someone to court if you don't know who they are. More on that in a moment, because it's the single most avoidable mistake in this whole area.
The law is tightening in your favour. In May 2026 the government introduced the Small Business Protections Bill (formally the Commercial Payments Bill), billed as the toughest crackdown on late payment in over 25 years. It brings in a 60-day cap on payment terms for large firms paying smaller suppliers, mandatory interest on late payments set at 8% above the Bank of England base rate, a ban on withholding retention payments in construction contracts, and major new powers for the Small Business Commissioner to investigate, adjudicate disputes and fine persistent offenders. The government's own worked example: a small business owed £10,000 and paid 60 days late would be owed £10,293.15 — the original sum plus £193.15 interest and £100 compensation. It's aimed mainly at large firms paying small ones, so it helps most if you do commercial or subcontract work rather than pure domestic — but as legislation working through Parliament, the exact final shape and timing aren't yet fixed. The direction, though, is firmly toward "small businesses should get paid on time."
How to chase without losing your weekend
Assuming the money's genuinely owed, here's a sequence that works and doesn't take over your life:
The single most important habit costs nothing: chase the moment it's late, not when you finally need the cash. A payment that's a week overdue is a quick nudge. A payment that's three months overdue is a debt you may never see. The longer you leave it, the more it signals you weren't really paying attention either — which makes the customer feel safe leaving it longer still.
Start friendly and assume an honest mistake — most late payments genuinely are one. A short, warm reminder ("just flagging invoice #X is now due — let me know if you need anything from me") clears a surprising number with no friction. If that gets nothing, follow up more firmly and put the consequence in writing: a clear due date, and what happens if it passes. Keep a record of every contact — dates, messages, what was said. If it ever does go to small claims, that trail is what wins it. And if a customer turns out to be a chronic late payer, the real decision isn't how to chase this invoice — it's whether you keep working for them at all. No job is worth being left out of pocket on repeatedly.
The mistake that makes chasing impossible
Here's the one that catches good tradespeople out, and it's worth dwelling on because it's so easily avoided.
Picture a booking taken entirely over the phone: customer rings, gives you an address — often a property they've just bought and don't yet live in — a mobile number, and an email to send the invoice to. You let yourself in with a key-safe code, do a clean job, send the invoice, and then... nothing. Blocked. And when you sit down to take it to small claims, you realise you don't actually know who this person is. A first name, a mobile, an email on a common surname, and an address for an empty property they own. You can't sue a phone number.
That's not carelessness — it's just how a lot of trade bookings happen, fast and informal, especially for small jobs. But it points straight at the fix: capture who the customer actually is, at the point of booking, before you've spent a drop of fuel. A full name, a billing address that isn't the empty job site, and ideally a deposit on anything where a no-show would cost you. None of that is unfriendly. Framed as "just need a few details to get you booked in," it's completely normal — and it's the difference between a recoverable debt and a write-off.
This is also where the no-show problem and the non-payer problem turn out to be the same problem. The sweep who travels an hour to a customer sitting in front of a roaring fire, and the heating engineer ghosted on an £80 service at an empty house, both got caught at the same point: a booking that took the job but not the commitment. A deposit, or even just card details held at booking, changes the customer's incentive completely. Most won't blink at it. The ones who object are often exactly the ones who'd have left you unpaid.
A simple system that prevents most of it
You don't need to turn into an admin machine. You need a booking step that quietly does four things:
It captures a real, verifiable identity — full name and a billing address, not just a mobile. It makes your terms visible and agreed at booking, not buried on a website, so a no-show charge is something the customer signed up to. It takes a deposit, or at least holds card details, on any job where a wasted visit costs you a slot you could've sold. And it timestamps everything — when they booked, what they agreed to, when you invoiced — so that if it ever does go to small claims, your record is already built.
Do that, and the £70 wasted call-outs and £80 ghosted invoices mostly stop being a category of problem. The handful that slip through, you'll actually be able to pursue — because you'll know who to pursue.
The snag is that most software built for tradespeople only kicks in after a job is booked — precisely too late to fix any of this. grafter.ly is built to start at the enquiry instead, so the booking step where this all goes wrong is the part it actually covers.
The honest bottom line
Late payment and the occasional non-payer are part of working for yourself; you won't eliminate them entirely, and you shouldn't lose sleep over the rare one that gets away. But most of the pain isn't in the chasing — it's in being set up so that chasing is hard or impossible. Fix the booking step, chase early and on a system, and know that the law backs you more than you'd guess. The goal isn't to become ruthless. It's to make getting paid the default, so the rare bad customer is an annoyance rather than a loss.
This is general information, not legal advice — for a specific dispute, the Small Business Commissioner and Citizens Advice are good free starting points.