When to send an invoice reminder: the schedule

Send four touches in the first month: three days before the due date, on the day, at day 7 and at day 14. After that, switch from email to a call.

5 documents free. PDF, photo or XML — data out as CSV, Excel or JSON.

Why the timing matters more than the wording

The same sentence sent on day 3 works; on day 25 it reads as an afterthought.

Clients pay in batches: the reminder should land before the payment run, not after.

Day −3: heads-up with the invoice attached.

Day 0: one line — due today, confirm it is queued.

Day 7: ask about obstacles and request a date.

Day 14: call. Email has proven it does not work on this client.

Day 30: formal notice with the next step stated.

When the client answers with a date — then follow up on that date only.

When you have escalated: repeating emails after a formal notice weakens it.

The wording barely changes between clients: keep six templates and let the schedule do the work.

Send from the company address the client recognises, and keep one thread per invoice.

For most B2B invoices, two touches cover it. Three or four is for invoices that are already late.

Only when they are frequent, impersonal and ignore replies. Scheduled, referenced and stoppable-on-reply reminders do not.