Add a payment method to your Microsoft account
You can add your credit card, debit card, bank account, PayPal account, or mobile phone as a new payment method for your Microsoft account. The payment method will then show up as an option during the checkout step for your next Microsoft Store online purchase.
Note: Adding a payment method following the steps below doesn't automatically change how you're currently set up to pay for an existing Microsoft subscription. To change the payment method you're using for monthly or annual subscription payments, see How to change your Microsoft subscription payment method and options.
Add a new payment method
Sign in with your Microsoft account to the Payment options page of your account dashboard. If you can't sign in, try troubleshooting issues with your Microsoft account.
Select Add a new payment method.
Select the type of payment method you want to add, add your info, and select Save.
Tip: To add a new payment method using your Xbox One console, see Update your billing address and payment options and expand the section under Update your info on your Xbox One console.