How to Chase Late Payments Without Ruining Client Relationships

Chasing invoices feels awful. You did the work, delivered on time, and now you're the one who feels awkward asking for money. But late payments aren't a personal failure — they're a business process, and you need a system for handling them.

The escalation ladder

Follow these steps in order. Most invoices get paid by step 2. If you reach step 5, the relationship is already damaged — the late payment did that, not your follow-up.

Step 1: Day 1 overdue — friendly reminder

Send a brief, warm email the day after the due date. Most late payments are forgetfulness, not malice.

“Hi [name], just a quick heads-up that invoice #[number] was due yesterday ([date]). I've attached a copy in case it's easier. Let me know if you need anything from my end to process it. Thanks!”

Key points: no accusation, assumption of good faith, attached copy removes the “I can't find it” excuse.

Step 2: Day 7 — firmer follow-up

If no response, follow up with slightly more structure:

“Hi [name], following up on invoice #[number] for £[amount], which was due on [date]. Could you let me know when I can expect payment? Happy to hop on a quick call if there's an issue.”

Asking “when can I expect payment” forces a specific answer — not just “soon.”

Step 3: Day 14 — reference your contract

Now you reference the agreed terms:

“Hi [name], invoice #[number] is now 14 days overdue. Per our agreement, payment was due within [X] days of delivery. I'd like to resolve this promptly. Please confirm payment will be made by [specific date].”

Referencing the contract shifts the tone from personal request to business obligation.

Step 4: Day 21 — pause work, formal notice

If you're still working with this client on other projects, pause everything:

“Hi [name], as invoice #[number] remains unpaid at 21 days overdue, I'm pausing all current work until the outstanding balance is settled. Under the Late Payment of Commercial Debts (Interest) Act 1998, I'm entitled to charge interest at 8% above the Bank of England base rate, plus a £[40/70/100] compensation fee. I'd prefer to resolve this without those measures. Please arrange payment by [date].”

Step 5: Day 30+ — legal options

If the client still hasn't paid, you have several options:

• Money Claim Online — File a small claim through gov.uk. Costs £35–£455 depending on the amount. Most cases settle before reaching court.
• Letter before action — A formal legal letter giving 14 days to pay before you file a claim. Many clients pay at this stage.
• Debt collection agency — They take a percentage but handle everything. Useful for amounts that aren't worth your time to chase personally.

Your UK legal rights

The Late Payment of Commercial Debts (Interest) Act 1998 gives you automatic rights on B2B invoices:

• Interest at 8% + Bank of England base rate per year on the overdue amount
• Compensation: £40 (debts up to £999.99), £70 (£1,000–£9,999.99), £100 (£10,000+)
• These rights exist even if your contract doesn't mention them

Prevention is better than chasing

• Always take a deposit — 30–50% upfront proves commitment
• Invoice immediately — The day you deliver, not a week later
• Use short payment terms — Net 7 or Net 14, not Net 30
• Make it easy to pay — Bank details on every invoice, card payment option if possible
• Automate reminders — Tools that send reminders for you remove the emotional cost