Hi @CMB23,

Thank you for posting here in the Community space. I can help you change the default bank account in QuickBooks Online.

If you meant the default bank account for Payments, there are two main settings. Update the Standard deposit account:

1. Sign in to QuickBooks Online in a web browser. Don't use the mobile app or GoPayments.
2. Go to Settings ⚙and then select Account and settings.
3. Select the Payments tab. In the Deposits section next to Standard Deposits, select Change bank.
4. Select Add new bank account.
5. Enter the routing number and account number of the bank account you want to change to.
6. Select Save when you're ready.
7. Review the bank account info and make sure it’s selected before completing your request.

Update the Instant Deposit account:

1. Select Settings ⚙ and then Account and settings.
2. Select the Payments tab and go to the Deposit accounts section.
3. Select Change to edit your instant deposit info.
   Note: If you switch from your personal debit card to your QuickBooks Checking debit card, select the 0% fee option.
4. When you're done, select Save and then Done.
   Note: You can't keep multiple debit cards or bank accounts on file.

If you need to update the card on file for your QuickBooks Online subscription, check out this link: Manage billing, payment, and subscription info in QuickBooks Online.

The process is also different for your company's bank account for payroll. You can update the information under Payroll Settings within your QuickBooks account.

Aside from changing the bank account, you can update your address and other business info for QuickBooks Payments. Check out this article to learn more about the process: Update business and account info for QuickBooks Payments.

Let us know if you're referring to something else by leaving a reply. We'll be sure to get back to you. Take care, and have a great rest of the day.