Hi there, wowliving7.
The best way to bring in older bank transactions to QuickBooks Online is to upload either QBO, CSV, or QFX file. We can get these files from your bank's website.
Please check this link for the detailed steps: Manually upload transactions into QuickBooks Online.
If you manually recorded the transaction individually, we need to make sure that the dates are correct. It should match your bank statement. You'll want to review them again to make sure everything's correct.
I've included these articles for more details on how to handle downloaded bank transactions:
Leave a comment again if you need anything else. Have a great day!
