How do I update my billing information?
Last updated November 3, 2026
You can update your billing information online anytime. Check out below how based on your current payment method.
I paid by card, and I want to update it
You can access your billing settings online at flat.io. To do so:
- Sign in to flat.io.
- Click your profile picture in the upper right corner.
- Click Account settings.
- On the left menu, choose Billing
- From there you can update your card, and update your billing address.
If you can't update your billing information, please contact us.
My card changed or expired, how do I pay with a new card?
- If a payment failed and your subscription is past due, open your billing settings and choose another payment method to pay.
- If nothing is past due, the card you saved is used at the next renewal. To pay with a different card, update it in your billing settings. If you cannot, cancel your subscription and subscribe again with the new card when your current license ends.
- If a payment fails at checkout with a valid card (for example "card network error"), try again. If it still fails, use another payment method such as PayPal, or try later.
I paid by PayPal
If you paid by PayPal, you can directly update your payment means in your PayPal account. You can adjust the funding source for your subscription in the pre-approved payments settings.
Purchased Flat on the Apple App Store?
If you bought a subscription from an Apple device, you'll need to update your billing information through the App Store.