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How to politely chase an unpaid invoice
To politely chase an unpaid invoice, send a short, friendly email on the due date or 1 to 3 days after it. Restate the invoice number, amount and due date, include a link to pay, and ask if anything is holding it up. If there is no reply, follow up about every 7 days, a little firmer each time, then call. After 21 to 30 days, send a final notice with a clear deadline and the next step you will take.
Check these 3 things before you chase
Many "late" invoices are really lost invoices. Before you send a reminder, check:
- Did it reach the right person? In bigger companies, invoices often need to go to accounts payable, not your day-to-day contact. Ask who handles payment.
- Is everything on it? Invoice number, date, due date, what the work was, the total, and how to pay. A missing purchase order (PO) number is a common reason a finance team holds an invoice.
- Is it actually due? Check the payment terms you agreed (for example "due on receipt" or "Net 30"). Chasing before the due date reads as pushy.
A simple chasing timeline
This is a common, polite rhythm. Each step is a little firmer than the last. Shorten it for small, regular clients; stretch it a little for large companies with slow payment runs.
| When | What to send | Tone |
|---|---|---|
| 3 days before due | A short heads-up with the amount, due date and pay link. | Friendly, no pressure |
| Due date | "Just a reminder this is due today", plus the pay link. | Friendly |
| 1 to 3 days late | First overdue reminder. Ask if anything is holding it up. | Polite, helpful |
| 7 days late | Second reminder. Restate the numbers and ask for a pay date. | Polite, direct |
| 14 days late | Third reminder, plus a phone call or message. | Firm |
| 21 to 30 days late | Final notice with a clear deadline and next step. | Firm, factual |
| After the deadline | Late fee (if your terms allow), pause work, small claims or a collections agency. | Formal |
Keep every message short. Always include the invoice number, the amount, the original due date, and a link or details to pay. The easier it is to pay right now, the faster you get paid.
What to say: short scripts
Polite does not mean vague. Say what is owed and ask one clear question.
Subject: Invoice [#] was due [date]
Hi [Name], Just a quick note that invoice [#] for [amount] was due on [date]. I may have missed your payment, so please ignore this if it's on its way. You can pay here: [pay link] Is anything holding it up on your side? Happy to help. Thanks, [Your name]
Subject: Following up: invoice [#] ([amount])
Hi [Name], Following up on invoice [#] for [amount], which is now 7 days past due (due [date]). Could you let me know when I can expect payment? Here's the link again: [pay link] Thanks, [Your name]
Want more? See all the invoice reminder email templates, including a final notice.
When to pick up the phone
If two emails get no reply, call or send a direct message. A short, calm call often fixes in two minutes what three emails could not. A simple script:
- "Hi [Name], it's [you]. I'm calling about invoice [#] for [amount] from [date]. Did it reach you ok?"
- "Is there anything you need from me to get it paid?"
- "Great. Can I put you down for payment by [specific day]?"
Then send a one-line email confirming the date you agreed. A written promise is easier to follow up on.
If the client still ignores you
Once you have sent a final notice with a clear deadline and it has passed, you have a few options. Pick the one that fits the amount and the relationship:
- Pause work. If you are still doing work for them, it is reasonable to pause until the overdue invoice is paid. Say so plainly and politely.
- Add a late fee or interest, but only if your contract or terms allow it. Rules differ by country. In some places the law lets businesses claim interest on late business-to-business payments (for example the UK's Late Payment of Commercial Debts (Interest) Act).
- Offer a payment plan. Two or three smaller payments beat nothing.
- Send a formal letter of demand, then consider small claims court or a collections agency for larger amounts.
This guide is general information, not legal advice. For large amounts or disputes, check your local rules or ask a professional.
What not to do
- Don't send long, emotional emails. Short and factual gets paid faster.
- Don't threaten anything you won't actually do.
- Don't chase in public (social media, group chats). It rarely helps and can hurt you.
- Don't go quiet for weeks. Gaps tell the client the invoice isn't urgent.
- Don't send reminders at odd hours. A weekday morning in the client's time zone is more likely to be read and acted on.
How to get paid faster next time
- Agree terms up front: when payment is due, how to pay, and what happens if it is late.
- Take a deposit for larger jobs (for example 30 to 50% before you start).
- Invoice right away, the day the work is done.
- Add a pay link (Stripe, PayPal or similar) so the client can pay in one tap, plus bank details if they prefer.
- Use shorter terms, like 7 or 14 days, if your clients allow it.
- Automate the reminders, so chasing happens on time even when you're busy or don't feel like it.
FAQ
How long should I wait before chasing an unpaid invoice?
Send a friendly reminder on the due date or 1 to 3 days after it. Waiting weeks makes it look less urgent. A short heads-up a few days before the due date also helps.
How often should I send payment reminders?
Every 5 to 7 days is a common, polite rhythm: a reminder just after the due date, then around 7, 14 and 21 to 30 days late, getting a little firmer each time.
Is it rude to chase an unpaid invoice?
No. You did the work and the payment is due. A short, factual, friendly reminder is normal business practice, and most clients simply forgot or lost the email.
What should a payment reminder email include?
The invoice number, the amount, the original due date, how to pay (ideally a pay link), and one clear question, such as when you can expect payment.
What do I do if a client ignores my invoice?
Call or message them directly, then send a final notice with a clear deadline. After that, consider pausing work, a late fee if your terms allow it, a payment plan, small claims court or a collections agency.
Can I charge a late fee on an overdue invoice?
Usually only if it was in your contract or payment terms, and rules differ by country. Some laws allow interest on late business-to-business payments. Check your local rules.
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