Which AI agent for sending invoices and payment reminders?

Short answer: Wave, FreshBooks or Zapier. Wave is our first pick: free invoicing.

Here are the AI tools and agents we’d look at first if you want to send invoices and chase late payments, with a simple setup recipe. This recipe is based on vendor documentation and common practice; hands-on testing is in progress.

Our picks

How to set it up

1. Create an invoice template with your terms.
2. Turn on online payments so clients can pay by card.
3. Set automatic reminders before and after the due date.
4. Review overdue invoices weekly.

Watch out for

Payment processing fees apply on card payments.

Last reviewed Nov 2026. Pricing comes from each vendor's official page; confirm before you buy.

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