Check your own records first
Confirm the invoice was sent, to the right address, and is truly unpaid. Chasing a paid invoice costs trust.
Start friendly and short
Say the invoice looks overdue, attach it and ask if anything is blocking payment. Assume a simple oversight.
Make paying easy
Include the amount, due date and a direct payment link. Every extra step delays the money.
Escalate in clear steps
Send a second reminder after a set number of days, then a firmer note that states any late fee in your terms.
Offer a plan if they struggle
If cash is tight, a short payment plan beats a long dispute. Agree it in writing.
Stop work only as stated
Pause services only if your agreement says you can, and tell the client first.