How to Write a Payment Reminder (Email Templates)

Timing is everything with payment reminders. Send too early and you seem pushy. Wait too long and the client forgets the invoice exists — or assumes you don't care about getting paid.

Here's a proven reminder schedule that balances professionalism with assertiveness:

• 1 day after the due date: Gentle reminder. Assume it's an oversight. Most late payments fall into this category — the client simply forgot or the email got buried.
• 7 days after the due date: Firm reminder. The tone shifts from "just checking in" to "this needs your attention." Reference the original invoice details and ask for a specific payment date.
• 14+ days after the due date: Final notice. Make it clear this is the last step before formal action. Mention statutory interest, compensation, and the possibility of small claims court or a debt recovery process.

Some freelancers also send a pre-due-date reminder — a friendly heads-up 2–3 days before the invoice is due. This works well for new clients or larger invoices. It's not a chase; it's a courtesy that often triggers early payment.

Whatever schedule you use, be consistent. If clients learn that you always follow up promptly, they'll prioritise your invoices. If you only chase sporadically, they'll put you at the bottom of the pile. For a deeper look at the full chasing process, see our guide on how to chase late payments.

This is your first follow-up. Keep it short, friendly, and assumption-free. The goal is to nudge without creating friction — the client may genuinely have missed the email or been on leave.

Subject line: Quick reminder — Invoice [NUMBER] due [DATE]

Email body:

Hi [NAME],

Hope you're well. Just a quick note that invoice [NUMBER] for £[AMOUNT] was due on [DATE]. I've attached a copy in case it's useful.

If you've already sent payment, please ignore this — these things sometimes cross in the post. Otherwise, could you let me know when I can expect it?

Happy to answer any questions about the invoice.

Thanks,
[YOUR NAME]

Why this works: It's non-confrontational and gives the client an easy out ("if you've already sent payment"). There's no blame, no urgency — just a professional nudge. Most overdue invoices get paid after this first reminder, so resist the temptation to escalate too quickly.

Attach the original invoice as a PDF so the client doesn't have to search their inbox for it. Removing even small barriers makes payment more likely.

If the gentle reminder didn't produce a response or payment within a few days, it's time to be more direct. This email should be polite but unmistakably about getting paid.

Subject line: Overdue invoice [NUMBER] — payment required

Email body:

Hi [NAME],

I'm following up on invoice [NUMBER] for £[AMOUNT], which was due on [DATE] — now [X] days overdue. I sent a reminder on [DATE OF FIRST REMINDER] but haven't received payment or a response.

Could you please arrange payment within the next 3 working days? For reference, my bank details are:

Account name: [NAME]
Sort code: [XX-XX-XX]
Account number: [XXXXXXXX]

If there's an issue with the invoice or you need to discuss payment arrangements, I'm happy to talk — just let me know.

Thanks,
[YOUR NAME]

Why this works: It creates a specific deadline (3 working days), repeats the payment details so there's no excuse, and opens the door for the client to explain if there's a genuine problem. The tone is still professional — you're not threatening, but you're clearly expecting action.

Including your bank details directly in the email removes the "I couldn't find your details" excuse. If you use Stripe, include a payment link instead.

This is the email you send when previous reminders have been ignored. The tone is formal and clear: pay now, or face consequences. You're not being aggressive — you're being direct about what happens next.

Subject line: FINAL NOTICE — Invoice [NUMBER] overdue, action required

Email body:

Dear [NAME],

This is a final notice regarding invoice [NUMBER] for £[AMOUNT], originally due on [DATE]. Despite previous reminders sent on [DATES], payment remains outstanding.

Under the Late Payment of Commercial Debts (Interest) Act 1998, I am entitled to charge statutory interest at 8% above the Bank of England base rate (currently [X]% per annum) plus fixed compensation of £[40/70/100]. As of today, the total amount due including interest is £[TOTAL].

I would prefer to resolve this without formal proceedings. Please arrange full payment within 7 days of this notice. If payment is not received by [SPECIFIC DATE], I will proceed with formal debt recovery, which may include a claim through the Small Claims Court.

Please confirm receipt of this email and your intended payment date.

Regards,
[YOUR NAME]

Why this works: It references specific legislation, quantifies the additional charges, and sets a clear deadline. Most clients pay at this stage because the threat of court action — and the realisation that you know your legal rights — makes ignoring the invoice more expensive than paying it.

Beyond the templates themselves, here are principles that make every reminder more effective:

• Always reference the invoice number and amount. Don't make the client guess which invoice you're talking about. Include the number, amount, date issued, and due date in every email.
• Use clear subject lines. Your subject line determines whether the email gets opened. Include the invoice number and the word "overdue" or "reminder" so it stands out in a crowded inbox.
• Keep a paper trail. Send reminders by email, not phone. You need written evidence of your chasing efforts if you end up in small claims court. If you do call, follow up with an email summarising what was discussed.
• Don't apologise for following up. "Sorry to bother you" undermines your position. You delivered work, you sent an invoice, and you're owed money. A reminder is not a bother — it's business.
• Escalate consistently. If you say you'll take further action after 7 days, do it. Empty threats teach clients that your deadlines don't mean anything.
• Separate the relationship from the transaction. You can be friendly with a client and still be firm about payment. Mixing personal feelings with business administration leads to unpaid invoices.

For automation, consider using invoicing software that sends reminders on a schedule. OwnedWork can send payment reminders automatically, so you don't have to draft these emails manually every time — you just set the timing and the software handles the rest.