How to handle recurring invoices
Updated 2026-06-20
If you bill the same client a similar amount every month — a retainer, a subscription, an ongoing service — you’re dealing with recurring invoices. Done well they’re the steadiest cash flow you can have. Done by hand they’re a repetitive chore that’s easy to forget.
What makes recurring billing different
The work is similar each cycle, so the invoice is too. That’s an opportunity: once you get the first one right, every future invoice is a near-copy. The two things that matter are consistency (same format, same terms, same day each month) and never missing a cycle.
Set a fixed billing day
Pick a predictable date — the 1st, or the last working day of the month — and stick to it. Clients with regular invoices learn the rhythm and plan to pay around it, which shortens the time to payment. An erratic schedule trains them to treat your invoice as a surprise.
Keep the details consistent
- Use the same layout and line items each cycle so the client’s finance team can approve it on autopilot.
- Keep your invoice numbers sequential across the series — see invoice numbering best practices.
- Restate the payment terms every time; don’t assume they remember.
The invoice generator saves your last invoice locally, so each month you tweak the dates and number and re-export the PDF rather than rebuilding from scratch.
Recurring billing and retainers
Recurring invoices are how a retainer actually gets billed. If you’re moving a client onto predictable monthly income, agree the amount and billing day in the agreement up front so there’s no monthly negotiation.
Don’t let a cycle slip
The failure mode with recurring invoices is human: you get busy, forget to send one, and a month’s income quietly disappears. The fix is to take yourself out of the loop. Duefy issues recurring invoices on schedule and chases them automatically if they go unpaid — so the billing happens whether or not you remember, and a missed month never costs you.