A late invoice is rarely a refusal — it's usually a stuck approval, a misfiled email, or a small business doing the same juggling act as you. The trick to recovering it without poisoning the relationship is escalating predictably, dropping the friendly tone when the silence drags on, and being prepared to invoke statutory rights when the polite route stops working.
1. Before it goes wrong — prevention is 80% of the job
Half of late payments are caused by friction the freelancer could have removed before the invoice was sent. Tighten these and the chasing problem mostly disappears:
- Send the invoice the day the work is delivered. Not Friday-end-of-month. Not "when I have a batch". The clock on payment terms starts when the invoice is received, not when the work was done. A 30-day term invoiced two weeks late is a 44-day wait.
- Use a clear, sequential invoice number and reference any client PO. Internal accounts systems route by reference. A missing PO number can park your invoice in a manual-review queue for two weeks.
- State payment terms explicitly on every invoice. "Payment terms: Net 14 days from invoice date" beats "Please pay promptly". Vague terms get treated as 30 days by default in most accounts systems even when you intended less.
- Set up automatic payment reminders. FreeAgent, Xero, QuickBooks and Wave all offer them free. They send the Stage-1 nudge automatically on day X without you having to remember.
- Get on the right approval list. If you're working with a corporate client, ask early who approves invoices and what the cycle is. "Approved by Friday for payment the following Wednesday" tells you exactly when to expect each invoice.
Use our free invoice generator for HMRC-compliant invoices with clear payment terms — it handles the formatting so you can't accidentally leave the terms vague.
2. Day 1–7 overdue — the gentle nudge
Send it 3–5 working days after the due date. Assume oversight, not refusal. Friendly tone, low stakes. Most invoices that go overdue do so because the approval got stuck somewhere; surfacing the problem is usually enough to fix it.
Don't apologise for chasing. You're not asking for a favour — you delivered the work, the contract is clear, the money is due. A specific question ("could you let me know when payment will be processed?") works much better than a vague reminder ("just checking in").
Our five-stage reminder template tool has the exact wording, with placeholders that auto-fill your client and invoice details.
3. Day 7–14 — firmer reminder
By now the polite approach has been ignored once. Stage 2 of the ladder restates the facts, asks for a specific payment date, and CCs the client's accounts team if you have their address. The tone shifts from conversational to formal.
A short phone call at this stage is also worth its weight. Many late invoices are released the same day on a 5-minute call because a real human gets reminded the problem exists. Always follow the call with a written email confirming what was agreed — verbal commitments are forgotten, written ones aren't.
If the client gives you a new payment date, hold them to it. If that date slips, you've now got a documented pattern of broken commitments — which is exactly the audit trail you'd need if this ever ends up in court.
4. Statutory interest territory (day 14–21)
At 14 days overdue the conversation changes. UK freelancers have a statutory right under the Late Payment of Commercial Debts (Interest) Act 1998 to add interest and a fixed sum of compensation to any overdue B2B invoice — even if the contract is silent on the point. The rate is the Bank of England base rate plus 8 percentage points, calculated pro-rata from the day after the due date.
A £2,500 invoice, 30 days overdue, at a BoE base rate of 4.5% (so statutory rate 12.5%):
Interest: £2,500 × 12.5% × 30 / 365 = £25.68.
Fixed compensation: invoice in the £1,000–£9,999.99 band = £70.
Total claimable: £2,500 + £25.68 + £70 = £2,595.68.
The fixed sum dwarfs the interest on small invoices — which is exactly the point. It's meant to make chasing economically worthwhile.
Run the exact figures for your invoice through the late payment interest calculator — it includes the demand-letter wording with the figures pre-filled.
You don't have to add interest immediately. Many freelancers reserve it for Stage 4 of the chasing ladder, signalling that the polite route has ended. Once you formally invoke the Act, the client knows two things: (a) you understand your statutory rights, and (b) the amount they owe is now growing daily. This usually clears the blockage.
5. Letter Before Action (day 28+)
If the statutory-interest notice is ignored for a week, the next escalation is the Letter Before Action (LBA) — a formal pre-court letter required by the Civil Procedure Rules' Practice Direction on Pre-Action Conduct.
The LBA does three things: sets a final deadline (typically 14 days), itemises the total claim (original + interest + fixed compensation), and warns explicitly that you will issue a Money Claim Online if it isn't paid by the deadline. The exact wording is in Stage 5 of our reminder template tool.
Most invoices are paid within a week of a properly-drafted LBA arriving. Clients who'd been quietly ignoring you suddenly notice the seriousness, and a Court claim hits their reputation as well as their cash flow. It's the single most effective stage of the ladder.
Send the LBA by email and recorded delivery. The recorded-delivery copy creates the audit trail the court will want if the matter escalates further.
6. Money Claim Online (small claims)
If the LBA is ignored, the next step is filing a claim. For amounts up to £10,000 the cheapest and fastest route is the Money Claim Online (MCOL) service — the online version of the County Court's small claims track. Filing fees are tiered: roughly £35 for claims up to £300, scaling to £455 for claims up to £10,000.
The process:
- File the claim online at gov.uk/make-money-claim. You'll need the debtor's full company name, registered address, and the amount including statutory interest.
- The court serves the claim on the defendant, who has 14 days to respond.
- If the defendant does not respond, you can request a default judgment online and the court will order them to pay. If they do respond and dispute the debt, the case moves to a hearing.
- Enforcement: a court judgment doesn't automatically extract the money. If the defendant ignores the judgment, you can apply for enforcement — typically a County Court Bailiff (£83) or, for larger amounts, a High Court Enforcement Officer (instant action, no fee to claimant in most cases).
For most freelance invoices, the threat of MCOL is more powerful than actually filing — most defendants pay within a fortnight of the LBA precisely because they want to avoid a County Court Judgment (CCJ) on their company record. A CCJ is a public mark against the business and damages their credit rating for six years.
7. When to walk away
Sometimes the right answer is to stop chasing. Realistically consider walking away when:
- The debtor is insolvent. Check Companies House — if the company is in administration or liquidation, you join a queue of unsecured creditors and statistically recover pence in the pound, if anything. Filing a claim against an insolvent debtor wastes the court fee.
- The amount doesn't justify the effort. Below £500 is rarely worth the time, except as a principle-setting move. Your time at your billable rate matters too.
- The debtor disputes the work substantively. Not a payment dispute — a quality dispute. Court will side with whoever has the better-documented case. If yours isn't watertight (clear brief, signed-off deliverables, written acceptance), a court fight is expensive and the outcome uncertain.
- You don't have a proper paper trail. No written contract, no signed-off deliverables, no exchanged emails confirming scope — your case is weak. Cut the loss, fix your contracting process next time.
Walking away isn't failure. It's a commercial decision. The cost of bad debt is the price of doing business; the cost of months chasing an uncollectible invoice is a far worse use of your time.
8. After-action review
Once the invoice is paid (or written off), spend ten minutes on the post-mortem. The point isn't recovery; it's prevention. Ask:
- When did it actually go late, and why? Approval bottleneck? Wrong PO? Email lost?
- What signal would have flagged it earlier?
- Did the chasing ladder work, or did one stage do the work? (Usually Stage 2 or Stage 5.)
- Would I work with this client again? On what terms?
For repeat-offender clients: change the terms. Move from Net 30 to Net 14, or to 50% deposit before work starts. New clients with no track record: keep them on deposit terms for the first engagement, even if it feels awkward. The "I take a 50% deposit because I've been burned before" line is universally understood.
Finally, build a cash buffer. The honest answer to chasing stress is having enough float that a single late invoice doesn't move your blood pressure. Even a one-month operating buffer changes the conversation entirely — instead of needing the money this week, you're following up on a debt because you're entitled to. Different posture, different tone, different outcome.
From the day after the contractual due date. If no payment date is agreed, the default is 30 days from invoice date or delivery, whichever is later, and interest accrues from day 31.
The right under the 1998 Act is statutory — it applies whether the client agrees or not, and a contract clause that excludes interest is unenforceable unless the contract provides a substantial alternative remedy (which a blanket exclusion is not). Add the interest anyway, attach the calculator output to your email, and proceed.
Tiered fees: £35 for claims under £300, scaling to £70 (£300–£500), £80 (£500–£1,000), £115 (£1,000–£1,500), £205 (£1,500–£3,000), £315 (£3,000–£5,000), £455 (£5,000–£10,000). Add another £71+ if you need a paper claim instead of online. The fee is added to what you can recover from the defendant if you win.
In England and Wales, "Letter Before Action" is the technical term used in the Pre-Action Protocol — sending one is essentially a prerequisite to starting a court claim. "Letter of Demand" is informal usage. Both mean broadly the same in freelance-debt context.
Above the fixed compensation amount (£40/£70/£100 depending on invoice size), the Act allows you to claim "reasonable costs of recovery" — but only the excess above the fixed sum and only if you can substantiate it (e.g. you paid a debt collector). Your own time spent chasing is hard to claim because it's hard to quantify objectively. For most freelance debts, the fixed sum is what you'll actually recover.
The 1998 Act still applies — it covers all business-to-business commercial debts, including those owed by sole traders and partnerships, not just companies. For enforcement, sole traders are personally liable so there's no corporate veil — easier to recover from in some ways, though obviously harder if they have limited assets.
Rarely worth it for amounts under £5,000. Agencies typically take 10–30% commission, which together with VAT often eats most of what they recover for small invoices. For larger sums or persistently uncollectible debts, a no-win-no-fee agency that handles MCOL filing on your behalf can be sensible. Compare against doing the LBA + MCOL yourself first — it's not as intimidating as it sounds.
General guidance for UK B2B commercial debts under the Late Payment of Commercial Debts (Interest) Act 1998 and the Civil Procedure Rules. Not legal advice. For substantial sums or complex disputes consult a solicitor, your trade body (FSB, IPSE) or a specialist debt-recovery firm.