How to Deal With Late Payment as a UK Tradesperson — Chasing Invoices, Statutory Interest and Your Legal Rights in 2026

UK SMEs are collectively owed £23 billion in late payments at any given point. Tradespeople sit at the sharp end of that figure. You do the work, order the materials, pay your subbies — and then wait. Sometimes weeks. Sometimes months. Sometimes forever.

This guide covers everything: how to prevent late payment in the first place, the exact messages to send when an invoice goes overdue, your legal rights under the Late Payment of Commercial Debts Act, the difference between domestic and commercial clients, and the full range of options from a solicitor's letter to the small claims court. By the end you'll know exactly what to do at every stage — and how to stop so much of it happening again.

The scale of the problem — and why tradespeople are hit hardest

The £23 billion figure comes from research by the Federation of Small Businesses. It covers all small businesses, but tradespeople bear a disproportionate share of the burden for a few structural reasons.

First, you carry significant upfront costs. Materials, fuel, van payments, tools — all of it comes out of your pocket before the customer pays a penny. The longer they take to settle, the worse your cash flow. Second, you're often working for domestic customers who have no formal accounts payable process and treat your invoice the way they treat a gas bill: something to get to eventually. Third, you typically lack the leverage that larger contractors have: no solicitor on retainer, no credit team, no formal 30-day net terms stamped across every contract.

The good news is that most late payment is not malicious. The majority of customers who don't pay on time either forgot, have a short-term cash problem, or simply haven't made your invoice a priority. That means the right process — clear terms, prompt invoicing, and structured chasing — resolves most situations without needing lawyers.

Prevention is easier than cure

The most powerful thing you can do about late payment is reduce how often it happens. A handful of habits, applied consistently, dramatically lower the risk.

State your payment terms clearly on every quote and invoice

“Payment due on completion” is not a payment term. Customers interpret it differently. State it explicitly: “Payment due within 7 days of invoice date” or “Payment due 14 days from invoice date.” Seven days is standard for most domestic trade jobs. Fourteen to thirty days is common for commercial clients. Whatever you choose, be consistent and make sure it appears on every document — your quote, your contract, and your invoice.

Include your late payment terms too. Something like: “Invoices not settled within [X] days may be subject to statutory interest under the Late Payment of Commercial Debts (Interest) Act 1998.” Even if you never enforce it, this signals that you know your rights.

Take a deposit — minimum 30% on jobs over £500

A deposit does two things. It covers your materials outlay so you're not financing the customer's job. And it filters out bad-faith customers before you've done a day's work. Anyone who refuses a reasonable deposit on a multi-hundred pound job is worth being cautious about.

For jobs under £500, taking card payment on completion is more practical. For anything over £500, ask for 30–50% upfront. For larger projects — bathroom refits, extensions, full rewires — structure payments in stages: deposit, mid-job milestone, and final on completion. Staged payments keep your cash flow healthy throughout and mean you're never owed more than one stage at a time.

Invoice the day the job finishes — not two weeks later

Every day between job completion and invoice sent is a day added to your wait. If you batch invoices on a Friday afternoon, and the job finished the previous Monday, you're already a week behind before the customer's payment terms even start. Send the invoice the same day — ideally while you're still on site, using invoicing software on your phone. The job is fresh in the customer's mind, their satisfaction is at its peak, and payment is most likely.

Make payment easy

Friction delays payment. If a customer has to fish out your bank details, log into their banking app, and manually enter a payment — some of them simply won't get around to it. Take card payment on-site (Stripe, SumUp, and Square all offer card readers under £50), or include a payment link in your invoice so they can pay by card in 30 seconds. Remove every excuse not to pay immediately.

Invoice chasing scripts: polite to final demand

When an invoice goes overdue, your approach should escalate gradually. Start warm and frictionless. Increase formality as time passes. Each message should create a clear paper trail in case this ends up before a judge.

Day 1 overdue: friendly check-in

WhatsApp or text works well here — it's personal, almost always read, and keeps the tone light. You're not accusing anyone; you're simply reminding them.

Most late invoices get resolved at this stage. The customer forgot or has been busy. A warm nudge is all it takes.

Day 7: formal email referencing invoice number and due date

If there's no response or payment after the first message, move to email. Email creates a documented record. Reference the invoice number and due date specifically — this becomes important evidence if you go to court.

If you have a phone number, call them the same day. A direct conversation — “Can I ask when you're planning to process this payment? I just need to know so I can update my records” — often gets a specific commitment that you can follow up on.

Day 14: final notice before further action

Two weeks overdue with no payment and no meaningful response — it's time to escalate to a formal final notice. Send by email and by post (recorded delivery, for proof of receipt). Keep the tone formal but not inflammatory.

This letter — often called a Letter Before Action (LBA) — resolves a large proportion of outstanding debts. The mention of court proceedings and statutory interest tends to concentrate minds.

Your legal rights: the Late Payment of Commercial Debts Act 1998

For business-to-business invoices, the Late Payment of Commercial Debts (Interest) Act 1998 gives you automatic statutory rights — no special contract clause required. Here is what you're entitled to:

Statutory interest at 8% above Bank of England base rate

As of mid-2026, the Bank of England base rate sits at approximately 4.25%. Statutory interest under the Act is therefore around 12.25% per annum on the outstanding amount. This accrues daily from the day after the payment was due.

On a £3,000 invoice overdue for 60 days, that adds roughly £60 to the recoverable amount — not huge, but it is real money you are entitled to claim, and including it in any court claim or LBA demonstrates you know the law.

Fixed debt recovery compensation

On top of interest, you can claim a fixed compensation fee for the cost of recovering the debt:

• £40 for debts under £1,000
• £70 for debts between £1,000 and £9,999.99
• £100 for debts of £10,000 or more

These amounts are automatic — you do not need to have incurred those exact costs. They are a statutory entitlement for B2B invoices.

When the Act applies

The Act applies to business-to-business transactions. If you're invoicing a landlord, a letting agent, a property management company, a small business, or any other commercial entity — the Act applies and these rights are yours automatically.

If you're invoicing a domestic householder as a private individual, the Act does not apply. You can still charge late payment interest — but only if your terms and conditions specifically state it. Without that clause, you're limited to the County Court route for the original debt amount only.

Domestic vs commercial clients: different legal routes

The legal route you take depends on who you're invoicing. This distinction matters.

Commercial clients (businesses, landlords, property managers, limited companies) are covered by the Late Payment of Commercial Debts Act. Statutory interest and the fixed compensation fees apply automatically. These clients tend to respond faster to the threat of legal action because a County Court Judgment (CCJ) against a business affects its credit rating and ability to trade.

Domestic clients (private householders) are not covered by the statutory interest provisions unless your contract explicitly includes them. Your route for recovery is the County Court (small claims track for debts up to £10,000). CCJs against individuals affect personal credit, which still creates meaningful pressure to pay.

For domestic disputes, consumer protection law also matters. Customers can raise issues about quality of work or the goods supplied — which is why having a clear, signed quote and documented completion (photos, sign-off sheet) is essential. It's much harder to dispute “I was unhappy with the work” when there's a signed completion form on file.

Small claims court: how it works in practice

For debts up to £10,000 in England and Wales, the small claims track in the County Court is your main legal tool. It is designed to be accessible without a solicitor, and the process is largely online.

Filing the claim

Go to GOV.UK Money Claims (moneyclaims.service.gov.uk). You can start a claim, track its progress, and respond to the defendant's defence entirely online. You'll need:

• The defendant's full name and address
• Details of the debt (invoice date, due date, amount)
• A brief account of the dispute and your attempts to resolve it

Court fees are based on the claim amount:

• Up to £300: £35
• £300–£500: £50
• £500–£1,000: £70
• £1,000–£1,500: £80
• £1,500–£3,000: £115
• £3,000–£5,000: £205
• £5,000–£10,000: £455

You add these fees to the claim, so if you win, the defendant pays them.

What happens after you file

The defendant has 14 days to acknowledge the claim and a further 14 days to file a defence. If they do neither — which is common when the debt is clear-cut — you can request a default judgment. The court rules in your favour without a hearing. A default judgment is just as legally binding as one reached after a trial.

If they file a defence, you'll be allocated a hearing date. The small claims track is informal by design — judges expect you to represent yourself, without legal jargon. Bring your signed quote, invoice, completion photos, and records of your chasing attempts. A clear paper trail of professional conduct wins these cases.

Success rates on small claims are high when the claimant has documentary evidence. Very few defendants who owe a genuine debt will go to the expense and embarrassment of a hearing when they know they will lose.

Debt collection agencies

Debt collection agencies (DCAs) are worth considering for debts of £1,000 or more where you want to recover something without the effort of legal proceedings. There are two models:

• Contingency collection: The DCA chases the debt on your behalf and charges a commission of 10–25% of whatever they recover. You pay nothing upfront; you only pay if they succeed. Good for debts where you're uncertain about recovery.
• Debt purchase: The DCA buys the debt from you at a discount — typically 20–50% of face value — and then collects the full amount themselves. You get cash immediately; they take on the risk.

DCAs work particularly well for commercial debtors. A formal demand from an agency on headed paper signals that the matter has been escalated, which often prompts payment where your own letters did not.

Solicitor's letter before action

A letter from a solicitor carries more weight than one from you. Many firms will send a formal Letter Before Action for £50–£150. This is not full legal representation — it is a single letter on solicitor's letterhead stating the debt, the interest accruing, and the intention to commence legal proceedings if payment is not made within 7 or 14 days.

The yield rate on solicitor LBAs is high. A significant proportion of customers who ignored your own letters pay when a solicitor writes to them. For debts between £1,000 and £5,000, a solicitor's letter is often the most cost-effective option — faster and cheaper than a full court claim, with a good chance of prompt resolution.

Search for solicitors offering fixed-fee debt recovery letters. Many will offer this service online without you needing to attend an office.

Trade body dispute resolution

If you're a member of a trade association — NICEIC, Gas Safe, Checkatrade, NAPIT, CHAS, or similar — check what dispute resolution services they offer. Some associations provide mediation services or dispute helplines. These are not a substitute for legal action, but they can sometimes facilitate a resolution that avoids court entirely. For disputes that involve a genuine quality complaint alongside a late payment issue, mediation is worth considering before escalating.

Commercial contracts: protecting your retention

If you work on commercial contracts, retention — typically 5% of the contract value held back until a defects liability period expires — is one of the most common sources of payment disputes in the trade. Main contractors and developers sometimes treat retention as an indefinite interest-free loan, releasing it late, partially, or not at all.

Protect yourself before you start:

• Make sure your subcontract specifies the retention percentage, the defects liability period (typically 6 or 12 months), and the exact trigger for retention release
• Issue a diary reminder for the retention release date, then send a formal invoice immediately when the period expires
• If the main contractor disputes the release, check your contract for adjudication provisions — the Construction Act 1996 gives you a right to adjudication on most construction contracts, and it's faster and cheaper than litigation
• Keep all completion certificates, practical completion sign-offs, and any defect notifications in writing

The Retention (Construction) Bill has been a recurring discussion in Parliament. As of 2026 there is no legislation requiring retention to be held in a ringfenced account, but this remains a live policy issue. Check current government guidance for any updates.

Preventing late payment from new commercial clients

For larger commercial jobs — and for any new client you haven't worked with before — it is worth doing a basic credit check before you commit significant time or materials.

Experian and Equifax both offer business credit reports for a modest fee. A quick check will show registered company details, whether the company has CCJs against it, and payment behaviour data if available. For a £10,000 contract, a £10 credit report is trivial due diligence.

For new domestic clients on large jobs, ask for references from previous tradespeople they've hired. Good customers are happy to provide these. Customers who have left a trail of unpaid invoices will find excuses not to.

Consider asking for full payment upfront from new customers on jobs under £1,000, or a 50% deposit on anything larger. Established customers who have always paid on time earn more flexible terms; new customers start with stricter ones until they've built a track record with you.

Not all clients are created equal — and your marketing data can tell you which ones pay

Here is something most tradespeople never think about: the source of a lead is a good predictor of whether they'll be a reliable payer.

Referrals from existing happy customers tend to produce the best clients. They come pre-qualified — someone they trust has vouched for you, they understand your pricing, and they value the relationship. These customers typically pay on time, cause fewer disputes, and often bring repeat work.

Leads from price-comparison platforms, where the customer is specifically shopping for the lowest quote, tend to produce more price sensitivity at every stage of the job — including invoice payment. Customers who negotiated hard on the quote are more likely to dispute extras, raise quality concerns at payment time, or simply drag their feet.

Trade2Base tracks every enquiry from its source through to job completion and payment, so you can see patterns across your business. If your Checkatrade leads take an average of 21 days to pay and your referral jobs are settled in 5, that is valuable information for how you allocate your marketing budget. Spending more to attract the clients who are easy to work with — and less on channels that bring late payers and disputes — directly improves your cash flow and your quality of life.

Most trade businesses run on gut feel. Marketing attribution gives you the data to back up those instincts — or challenge them.

A quick reference: your options when an invoice is overdue

• Day 1 overdue: Friendly WhatsApp or text reminder
• Day 7: Formal email referencing invoice number, due date, and payment details; follow-up phone call
• Day 14: Letter Before Action sent by email and recorded post; mention of statutory interest and court proceedings
• Day 21: Solicitor's letter (fixed fee £50–£150) or debt collection agency (for debts over £1,000)
• Day 28+: File a claim via GOV.UK Money Claims; add statutory interest, debt recovery compensation, and court fee to the claim amount

Document everything at every stage. Every text, email, and call note is evidence. Tradespeople who arrive at court with an organised folder of communications consistently outperform those who don't.

The bottom line

Late payment is a genuine business risk, but it is also one you have real tools to address. Clear terms, upfront deposits, same-day invoicing, and a structured chasing process resolve the majority of late invoices without any legal action. When those fail, you have statutory rights that most tradespeople never use — and a court system specifically designed to make it practical to enforce them without a solicitor.

The broader goal is to build a client base that pays reliably. That means being selective about which jobs you take and from which sources, doing basic due diligence on new commercial clients, and using your own payment data to understand where the best customers come from. Less time chasing invoices means more time doing the work — and running a business you actually enjoy.