How does recurring auto-billing work?

Recurring auto-billing makes it possible to automatically charge your client’s credit or debit card for the amount due of each recurring invoice they receive. It’s perfect for things like subscriptions, ongoing retainer fees, or any kind of repeating service or product fees you might offer your clients.

How It Works

It’s simple to take advantage of recurring auto-billing. When creating a recurring invoice template click on the “Customize” button in the upper right of the screen and you’ll find an option for allowing your client to activate auto-billing:

(Tip: In order to see this option you’ll want to make sure you’ve already checked the option to allow your client to pay the invoices online.)

Your client will then see a new option on their online payment form for saving their card and automating future payments:

After selecting this option your client’s credit or debit card will be automatically charged in the future for this recurring invoice, and they’ll have access to update their card information at any time.


After each card charge both you and your client will receive an email notification of the successful payment, giving your client quick access to view the paid invoice online.

And if an automatic payment fails (e.g. due to an expired or rejected card) Harpoon will even notify your client via email on your behalf, giving your client the opportunity to easily update their card information. It’s one less thing you need to follow up on.

Meet Harpoon, the forward-looking time-tracking & invoicing software.

Harpoon not only records your financial past, but also helps you plan and forecast a profitable future for your business. Try it risk-free for 14 days.