How to Follow Up on Unpaid Invoices Professionally

1. Establish a Polite Follow-Up Schedule

Send polite follow-ups: (a) 1 day after the due date. (b) 7 days late. (c) 14 days late. (d) Call at 30 days late.

2. Keeping the Tone Professional

Assume it was an oversight. Write: "Just checking in to ensure our invoice [Number] was received. Let me know if you need another copy."

3. Stop Work Immediately

If an invoice is late, pause all active work until it is resolved. Notify the client politely that scheduling holds are active.