I can't sync my bank account to do payroll. Even though the account is synced for transactions.

Welcome to the QuickBooks Community, dbrown-idahobmi-. Before we get started, are you receiving any error message? In the meantime, let's perform some troubleshooting steps to update your bank account to isolate this issue. Here's how:

1. On the left panel, select Banking.
2. At the upper right side of the page, click Update.
3. If prompted, enter your Multi-Factor Authentication (MFA) credentials and select Continue Update.

 If you prefer to update this manually, I have included this article: How to Manually Update Bank Accounts.

Once you made that update, try to run your payroll once again. Let me know how this goes. I'll be looking out for your response. The Community and I are here to cater to your needs. Until then, be safe and take care.