# Customer card declined when processing payment

There are a number of reasons why a customer's card could be declined. You can read about the main types of declines and ways to address them in the [Understanding Declines and Failed Payments](https://stripe.com/docs/declines) guide in Stripe Docs.
## Additional Information
* Certain declines might be preventative measures working in your favor to minimize the possibility of a fraudulent payment, that otherwise could result in a dispute.
  * Examples of this are cards that are picked up by [Stripe Radar](https://stripe.com/radar) as fraudulent, or that match custom [Radar rules](https://stripe.com/docs/radar/rules) created by you to filter out transactions you do not want to accept.
* For users with IC+ pricing, Adaptive Acceptance blocks certain payments that have very low likelihood of authorization, in order to save you network costs involved with attempting the payment with card networks.
* [Understanding Declines and Failed Payments](https://stripe.com/docs/declines)