Can I add a bank account with a routing and account number instead of a login?

Good day, brycemccormick.

Adding a bank in QuickBooks Self-Employed with routing and the account number isn't currently offered. You'll need to add the bank with a Sign-On ID and Password.

I'm leaving you some articles to help you guide you in adding a bank in QuickBooks Self-Employed:

Bank Feeds Direct Connect FAQ in QuickBooks Self-Employed

Connect bank and credit card accounts to QuickBooks Self-Employed

Feel free to drop me a reply below if you have any other banking concerns or anything in QuickBooks. I'd be glad to help you out.