Most overdue invoices aren't deliberate non-payment. They're forgotten emails, autopilot procrastination, or a customer waiting for a bigger paycheck. The right reminder at the right moment is enough to clear 80%+ without any awkwardness. Here are the five emails that work.
Each template is field-tested. Copy, paste, replace the bracketed placeholders, and send.
1. Day 3 — friendly nudge
Send three days after the due date passed, not before. Earlier feels pushy; later loses the easy-fix window.
Subject: Quick reminder — invoice #[INV-NUMBER]
Hi [CUSTOMER FIRST NAME],
Hope you're doing well. Just a quick note that invoice #[INV-NUMBER] for $[AMOUNT] was due [DUE DATE] — I wanted to make sure it didn't get lost in your inbox.
You can pay online here: [PAYMENT LINK]
If it's already on its way or you've sent a check, no need to reply. Otherwise, let me know if there are any questions about the bill.
Thanks,
[YOUR NAME]
2. Day 14 — second nudge with a deadline
If the day-3 email didn't move the needle, escalate slightly. Add a soft deadline. Stay warm but make it clear there's now a calendar.
Subject: Friendly follow-up — invoice #[INV-NUMBER] · $[AMOUNT]
Hi [CUSTOMER FIRST NAME],
Following up on invoice #[INV-NUMBER] from [ORIGINAL ISSUE DATE]. The balance is $[AMOUNT] and it's now [DAYS PAST DUE] days past due.
Could you let me know by Friday whether you're able to settle it this week? I'd rather catch any issue with the bill early than escalate at the end of the month.
Pay online: [PAYMENT LINK] · or reply to this email if a different method works better for you.
Appreciate it,
[YOUR NAME]
3. Day 30 — formal late notice
By day 30 you're firm but professional. Mention any late fee that's now applicable. Give a final clear deadline.
Subject: Past-due notice — invoice #[INV-NUMBER]
Hi [CUSTOMER FIRST NAME],
This is a more formal note about invoice #[INV-NUMBER], originally due [DUE DATE]. The balance of $[AMOUNT] is now 30+ days past due.
Per the original invoice terms, a late fee of [LATE FEE] applies after 30 days, bringing the new total to $[NEW TOTAL]. I'd like to keep that off the bill if at all possible — please make payment by [SPECIFIC DATE 7 DAYS OUT].
If something is going on or you need to set up a partial-payment plan, please reply directly to this email. We can work something out — just need to hear from you.
Pay online: [PAYMENT LINK]
[YOUR NAME]
[BUSINESS NAME]
4. Day 45 — final notice before service hold
This one's for recurring customers. The leverage is whatever ongoing service they get from you. Use it carefully.
Subject: Final notice — invoice #[INV-NUMBER] · service hold pending
[CUSTOMER FIRST NAME],
Invoice #[INV-NUMBER] is now 45+ days past due with a balance of $[AMOUNT INCLUDING LATE FEE]. I haven't heard back to my previous emails.
I need to put your [WEEKLY/MONTHLY] service on hold starting [DATE 7 DAYS OUT] until this balance is cleared. I really don't want to do this — you've been a customer for [TIME PERIOD] and I value the relationship.
Two options to clear this today:
• Pay in full: [PAYMENT LINK]
• Reply with a 30/60/90 partial-payment plan and I'll accept any reasonable structure
[YOUR NAME]
[BUSINESS NAME]
5. Post-resolution — keeping the relationship intact
Once they pay, send this within 24 hours. It rebuilds the goodwill that the collection process eroded and signals "we're back to normal."
Subject: Got it — thanks!
[CUSTOMER FIRST NAME],
Payment received this morning — invoice #[INV-NUMBER] is settled in full and your account is back to active. Thanks for getting that wrapped up.
We're all set for [NEXT SCHEDULED VISIT]. If anything comes up that affects timing, just let me know.
Appreciate the business,
[YOUR NAME]
The four rules underneath all five emails
- Always include the payment link in the email body. Not just inside the PDF. Mobile email clients sometimes strip PDF interactivity.
- Always reference the specific invoice number and amount. "Your invoice" is too vague to action.
- Always offer a path to talk. The customers who go quiet usually have a real problem (cash crunch, billing dispute) — invite them to share it.
- Never threaten in the first three emails. Even the day-30 note keeps the late fee soft. Save the leverage for #4 and only with active recurring customers.
Daily Invoice Maker has these templates built in — pick the customer, pick the stage, send. Download free to use them on your overdue invoices today.
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