How to Chase Late Payments: Email Templates & Tips

Step-by-step guidance on chasing overdue invoices, with ready-to-use email templates and escalation strategies that protect your income.

8 min read·

Why Invoices Go Unpaid

Before you assume the worst, understand that most late payments aren't malicious. The vast majority of overdue invoices are caused by one of these situations:

  • The invoice was lost or overlooked — It landed in spam, got buried in someone's inbox, or was saved for later and forgotten. This is the single most common reason.
  • Internal processes are slow — Larger companies route invoices through multiple people for approval. If one person is on holiday or the PO number doesn't match, the invoice stalls.
  • Cash flow problems — The client is struggling financially. This is less common with established businesses but more frequent with small business clients and startups.
  • The invoice has errors — Wrong amount, missing PO number, incorrect company name — any of these can cause a rejection that the client may not bother to tell you about.
  • No clear payment terms — If your invoice didn't specify a due date, the client may not consider it "late" even weeks after receiving it.

Understanding the likely cause helps you pitch your follow-up correctly. A friendly reminder works for forgotten invoices. A firm escalation is needed for serial late payers. Knowing the difference saves relationships and gets you paid faster.

The key takeaway: don't take it personally, but don't let it slide either. Every day past the due date is money you've earned sitting in someone else's account.

Before You Chase: Prevention Tips

The best way to handle late payments is to prevent them. These practices dramatically reduce the chances of an invoice going overdue:

Set clear payment terms before starting work. Include them in your contract and on every invoice. When both parties agree on the deadline upfront, there's no ambiguity later.

Invoice immediately. Don't wait a week after completing work to send the invoice. The longer you wait, the less urgency the client feels. Invoice on the day you deliver — or the day the milestone is hit.

Confirm receipt of the invoice. A quick email or message: "Just sent over invoice #INV-047 — let me know if you need anything." This ensures it didn't land in spam and puts the payment on the client's radar.

Send a reminder before the due date. Three to five days before the due date, send a gentle heads-up: "Just a reminder that invoice #INV-047 (£1,200) is due on Friday 14th." This gives the client time to process it without feeling chased.

Make paying easy. Include all payment details on the invoice. If you can offer multiple payment methods (bank transfer, card payment, PayPal), do so. Every barrier to payment is a reason for delay.

Build relationships with accounts teams. If your client has a finance department, introduce yourself. Knowing the person who processes invoices gives you a direct line when things get stuck — and they'll prioritise people they know.

Email Templates: 7, 14, and 30 Days Overdue

Here are three email templates you can adapt for different stages of a late payment. Adjust the tone based on your relationship with the client.

7 days overdue — Friendly reminder

Subject: Invoice #INV-047 — Friendly Payment Reminder

"Hi [Name], I hope you're well. I wanted to follow up on invoice #INV-047 for £[amount], which was due on [date]. I appreciate these things can sometimes slip through the cracks. Could you let me know when I can expect payment? I've reattached the invoice for your convenience. Thanks, [Your name]"

14 days overdue — Firmer follow-up

Subject: Overdue Invoice #INV-047 — Payment Required

"Hi [Name], I'm following up on invoice #INV-047 for £[amount], which is now 14 days past the due date of [date]. I'd appreciate it if you could arrange payment at your earliest convenience, or let me know if there's an issue I can help resolve. Please note that under our agreed terms, late payments may incur statutory interest. I'd much prefer to resolve this without any formalities. Best regards, [Your name]"

30 days overdue — Final notice

Subject: Final Notice — Overdue Invoice #INV-047

"Dear [Name], This is a final notice regarding invoice #INV-047 for £[amount], originally due on [date]. Despite previous reminders, this invoice remains unpaid. If payment is not received within 7 days, I will need to consider further action, which may include charging statutory interest and compensation under the Late Payment of Commercial Debts (Interest) Act 1998. Please arrange payment immediately or contact me to discuss. Regards, [Your name]"

Escalation: What to Do When Emails Don't Work

If your email reminders aren't getting results, it's time to escalate. Here are your options, in order of severity:

1. Phone the client directly. An email is easy to ignore; a phone call isn't. Call the person you work with and politely explain the situation. Often, a two-minute conversation resolves what weeks of emails couldn't. Be calm, professional, and direct.

2. Contact someone more senior. If your direct contact isn't responding (or claims it's out of their hands), email the business owner, managing director, or finance director. Copy your contact in. Be factual: state the invoice number, amount, original due date, and the follow-up attempts you've made.

3. Send a formal Letter Before Action (LBA). A Letter Before Action (also called a Letter Before Claim) is a formal letter giving the debtor a final deadline — typically 14 days — before you take legal action. You can send it by email and post. The threat of legal action alone resolves many disputes.

4. Use the Small Claims Court. For debts up to £10,000 in England and Wales, you can file a claim through the Money Claims Online service (MCOL) at gov.uk. The fee is based on the claim amount — for example, £70 for a claim between £1,001 and £1,500. Many debtors pay up as soon as they receive the court papers.

5. Consider mediation or a debt collection agency. Mediation is cheaper and less adversarial than court. A debt collection agency charges a fee (typically 10-15% of the debt) but handles all the chasing for you. This can be worthwhile for larger debts where you've exhausted other options.

Protecting Your Cash Flow Long-Term

Chasing individual invoices is reactive. To truly protect your income, build systems that minimise late payments across your entire client base:

Vet new clients. Before taking on a large project, do basic due diligence. Check their Companies House record (if they're a limited company), look for reviews from other freelancers, and ask for references if the project is substantial. A client who can't pay a £200 deposit upfront probably can't pay a £2,000 invoice on time.

Use milestone payments. For projects over £1,000, break the payment into stages: typically 30-50% upfront, one or two interim payments, and a final payment on delivery. This way, even if the final payment is late, you're not completely out of pocket.

Track every invoice. Use invoicing software (like OwnedWork) that shows you the status of every invoice — sent, viewed, overdue, paid. When you can see your entire receivables at a glance, nothing slips through the cracks.

Fire bad clients. If a client consistently pays late, pays less than agreed, or makes you chase every single invoice, they're costing you more than they're paying. Factor in the hours you spend chasing, the stress, and the cash flow disruption — then decide if the relationship is worth continuing.

Build a financial buffer. Aim to have at least one month's expenses in reserve (three months is ideal). This buffer means a single late payment won't leave you unable to pay your own bills. It also gives you the confidence to enforce your terms without fear of losing the client.

Prevention is always cheaper than cure. Every hour you spend chasing a late payment is an hour you could have spent earning money from a better client.

Frequently Asked Questions

How long should I wait before chasing a late payment?

Send a polite reminder on the day after the due date, or the next working day. Don't wait weeks — the longer you leave it, the lower the priority it becomes for the client. A prompt follow-up signals that you take your payment terms seriously.

Can I stop working for a client who hasn't paid?

Yes. If a client owes you money and hasn't responded to reminders, you're within your rights to pause work until the outstanding balance is cleared. Check your contract first — ideally it should include a clause allowing you to suspend services for non-payment.

Is it worth using a debt collection agency for small invoices?

It depends. Most debt collection agencies take 10-15% of the recovered amount. For a £200 invoice, that's only £20-30, but you've also lost the goodwill and the client. For very small amounts, writing it off and not working with that client again may be more practical. For debts over £500-1,000, the maths starts to make more sense.

What is a Letter Before Action?

A Letter Before Action (LBA) is a formal letter stating that you will take legal action to recover a debt if it is not paid within a specified period (usually 14 days). It's a required step before filing a claim in court and demonstrates you've given the debtor a final chance to pay. Many debts are settled at this stage.

Can I charge late fees to clients who aren't businesses?

The Late Payment of Commercial Debts Act only covers business-to-business transactions. If your client is an individual consumer, you can still include late payment terms in your contract, but you can't rely on the statutory interest provisions. For consumer debts, you'd need to pursue through the Small Claims Court.

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