Reminders at 3, 14 and 30 days overdue
Written from your own wording and sent from your own inbox once you approve them. They stop the moment the invoice is paid in Xero or QuickBooks.
Replies change what happens next
If a customer promises a date, the next reminder waits until the day after. If they query the invoice or say they have paid, reminders stop and it comes to you.
Late-payment interest, for business customers
UK law lets a business claim interest of 8% above the Bank of England reference rate, plus fixed compensation of £40, £70 or £100. Turn it on and it is added from the second reminder, worked out for each invoice.
Keep email addresses up to date
An invoice without an email address cannot be chased. Your home page lists them so you can fix them in your accounts.