Re: I erroneously made an electronic tax payment from a non-linked bank account. How do I change ...
Welcome to the Community. I'd be glad to help you change the bank account for the tax payments in QuickBooks Online.
You can only change the bank account of a sales tax during the process of creating the payment. If there's a need for you to correct them, you'll need to delete and re-enter the amount from the Sales Tax section.