Invoice reminder: ask once more, politely, and get paid

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Why reminders fail

They are vague: «just checking in» gives the client nothing to act on.

They are late: the first reminder arrives three weeks after the due date, when the invoice is already out of mind.

They are emotional: anger gets an answer, not a payment.

The sequence that works

Three days before the due date: a short, friendly note — no accusation.

On the due date: a one-line reminder with the invoice attached.

Day 7: a firmer note naming the amount and asking for a payment date.

Day 14: a call, not an email. Email is easy to ignore.

Day 30 and beyond: decide — payment plan, interest if your contract allows it, or collection.

What every reminder must contain

Invoice number, amount, due date and a link or attachment to pay.

One clear ask: a date when payment will be made.

A named person and a phone number, so the reply goes to a human.

What makes it easier

Sending from the company the client knows, not from a personal mailbox.

Keeping the same thread: history in one place beats five separate emails.

Not writing each one by hand — the words hardly change, the schedule does.

How many reminders is too many?

Four touches over a month is normal in B2B. Daily emails read as harassment and usually delay payment further.

Should the first reminder be before the due date?

Yes. A note three days early prevents most late payments, and it costs nothing to send.

Can I charge interest on a late payment?

Only if your contract or the applicable law allows it. Check the agreement before mentioning interest.