Before it happens.
WHAT REDUCES LATE PAYMENT
Payment in advance, or a deposit Short terms Clear invoices sent promptly A payment link Reminders before the due date Knowing who actually pays
THE PROMPT INVOICING POINT
An invoice sent a month after the work is paid a month later.
Invoice immediately.
THE RIGHT PERSON
In larger organisations, the person who commissioned the work does not pay it.
Ask at the start who invoices go to and what reference they need.
GETTING TERMS AGREED FIRST
Terms first seen on the invoice are frequently ignored.
State them in your quote or agreement.
FOR NEW CUSTOMERS
Advance payment or a deposit until they have paid on time twice.
FOR REPEAT LATE PAYERS
Change their terms.
Advance payment, or stop working with them.
WHAT TO TRACK
Average days to payment, per customer.
That tells you who to change terms for.