Invoice reminder email templates (before and after the due date)

Updated September 30, 2026

The best reminder is short, friendly, and arrives before the invoice is late. Here are templates for each stage. Swap in your details and keep your own voice.

How many to send: one reminder a few days before the due date, then one or two after. More than that starts to read as nagging.

A few days before it's due

Subject: Invoice 1042 is due FridayHi Dana, Just a heads-up that invoice 1042 for $1,500.00 is due this Friday, October 15. You can pay it here: [payment link] No action needed if it's already scheduled. Thank you! Marta

On the due date

Subject: Invoice 1042 is due todayHi Dana, A quick reminder that invoice 1042 for $1,500.00 is due today. Here's the link to pay: [payment link] Thanks so much, Marta

A few days late

Subject: Invoice 1042 is past dueHi Dana, Invoice 1042 for $1,500.00 was due on October 15 and is still open. As agreed on the invoice, a $25 late fee applies if it's unpaid by October 22. You can pay here: [payment link]. If something's holding it up, just reply and let me know. Thank you, Marta

Two weeks late

Subject: Final notice: invoice 1042Hi Dana, Invoice 1042 is now two weeks past due. The balance is $1,525.00, including the $25 late fee in our terms. Please pay by [date] here: [payment link], or reply so we can sort it out together. Thank you, Marta

What makes reminders work

Send one before the due date. Most late invoices are forgotten, not disputed.
Put the payment link in every email. One click beats "log in and find it."
Say the amount and date. No guessing, no back-and-forth.
Stay warm. No red text, no legal threats. You want to keep the client.
Stop when they reply. A reminder landing after they've answered feels robotic.

How Dunn handles it

Dunn sends these for you, in your business's name: the invoice, one reminder 4 days before the due date, and notices after. When a client replies, Dunn pauses the reminders and forwards the reply to you.

Quick answers

When should I send an invoice reminder?
A few days before the due date works best, since most late payments are simply forgotten. Then send one or two after the due date.

How many payment reminders is too many?
More than three or four, or more than one a week, starts to feel like nagging. One before and one or two after the due date is usually enough.

Let Dunn do the chasing

Dunn sends the reminder before the due date, adds the late fee you agreed on, and keeps the record. Works with your Stripe. From $39 a month.

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