Overdue Invoice Reminder Templates

Business-to-business wording for chasing an unpaid invoice, where a clear record and a firm tone both matter. Keep the invoice number, amount, and dates in every message so the trail is unambiguous.

First reminder (a few days overdue)

Subject: Invoice [Number] from [Your company] is overdue

Hello [First name],

Our records show invoice [Number] for [Amount], dated [Invoice date] and due [Due date], is currently unpaid. Please arrange payment or let us know if you need the invoice resent.

Regards,
[Your name], [Your company]

Second notice (around 14 days)

Subject: Second notice: invoice [Number] outstanding

Hello [First name],

Invoice [Number] for [Amount] is now [X days] overdue. Please settle it by [Date]. Per our terms, a late fee of [amount or percent] may apply to invoices unpaid beyond [terms].

[Your company]

Final demand (30 days plus)

Subject: Final demand: invoice [Number]

Hello [First name],

Despite previous reminders, invoice [Number] for [Amount] remains unpaid and is now [X days] overdue. Please pay in full by [Date]. If payment is not received, we will [pause work / apply late fees / escalate], which we would prefer to avoid.

[Your company]

Collection call script

Hello, this is [Your name] at [Your company], calling about invoice [Number] for [Amount], now [X days] overdue. When can we expect payment? If there is a dispute or a problem, I would like to resolve it. My number is [Phone]. Thank you.

Stop chasing payments by hand

A polite call at day 20 collects what a fourth email at day 40 will not. DoNotify places the reminder as a real phone call, the one channel a late payer cannot leave sitting unread. Write the wording once and it goes out on a schedule to any handset, with voicemail retried and every call logged. There are 14 free reminder calls to try it, no card required.

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Frequently asked questions

How do you politely remind a client of an overdue invoice?

Lead with the assumption it was missed, state the invoice number, amount and due date plainly, and give a clear way to pay or query it. Save firmness for the second and third contact.

What is a reasonable timeline for chasing an unpaid invoice?

A first reminder within a few days of the due date, a second notice around two weeks, and a final demand near 30 days. Beyond that, a phone call or a formal escalation is usually next.

Can invoice reminder calls be automated?

Yes. DoNotify places a scheduled reminder call with wording you set, so accounts staff are not chasing every overdue invoice by phone themselves.

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