Good day to you, Tony-Miller.
Printing account numbers on printed checks isn't possible in QuickBooks Online (QBO). As a way around, you can input it manually under the Memo field.
On the other hand, if you want the checks to be processed by the bank, you'll need to use the pre-printed voucher check. You can get it directly from your bank or order checks from us. Just visit this article to get our phone number: Order Checks, Tax Forms, and Other Supplies.
I’ve also collected these resources that you can read for reference in printing your checks:
If you need further assistance printing your checks or managing your account, you can always tag me in your reply. I’ll be around ready to lend a helping hand. Have a great day ahead!
