Bank Authentications require your customers to sign in using Plaid once they've accepted a Payment Link, and reduces the risk of bad accounts with insufficient funds, thereby reducing chargeback fees.
With Bank Authentication, only customers with sufficient funds can proceed with completing the payment link.
Once they've linked an account with sufficient funds, the E-check will be populated by Plaid, so it becomes easy and secure to send a check.
If a user has insufficient funds, they will be met with an Error message notifying them that their check will not go through. This helps merchants reduce the risk of receiving checks that would bounce and cause chargeback fees.