Definition
Dunning is the systematic process of communicating with clients about overdue invoices, typically through a sequence of escalating reminders: a friendly notice shortly after the due date, firmer follow-ups, and finally a formal demand. Automated dunning emails are a standard feature of invoicing software.
Also called: Dunning process, Payment reminders
Dunning in practice
A good dunning sequence is predictable and polite. Each message restates the invoice number, amount, and due date, attaches the invoice, and makes paying easy. Escalation should be a policy, not an emotional reaction.
Frequently Asked Questions
How many dunning emails should I send?
Three is typical: a few days after the due date, around two weeks late, and around 30 days late. After that, a phone call or formal letter is usually more effective than another email.