Your Cash App and Cash Card PIN are the same.

To reset your PIN:

1. Tap the profile icon on your Cash App home screen
2. Select Privacy & Security
3. Press Change Cash PIN
4. Confirm your new PIN

To reset your PIN online:

1. Log into your Cash App account at cash.app/account
2. At the bottom of the left toolbar, click Account to open your settings
3. In the Privacy and Security section, click Change Cash PIN
4. Confirm your current PIN, then enter and re-confirm your new PIN