# Validate and Tokenize Bank Accounts at the Same Time

You can now validate new bank accounts when they’re tokenized and used to create payment instruments. This helps you know for certain whether a new bank account is valid before using it in a transaction.

To verify that a bank account actually exists when creating a token, you can include the `attempt_bank_account_validation_check` field. If a bank account doesn’t exist, the token will create a `payment_instrument` with an error in the `address_verification` field.

- For details on how to tokenize the details of a bank account, see [Tokenization Forms](/guides/online-payments/payment-tokenization/tokenization-forms).
- For details on how to create a Payment Instrument using a token, see [Create a Payment Instrument](/api/payment-instruments/createpaymentinstrument).
- For details on how to tokenize the details of a bank account, see [Tokenization Forms](/guides/online-payments/payment-tokenization/tokenization-forms).
- For details on how to create a Payment Instrument using a token, see [Create a Payment Instrument](/api/payment-instruments/createpaymentinstrument).