How far back do i go to add bank transactions to QBO

Greetings, @brj1. 

Congrats on making your first post here in the Community. I hope your day is going well so far. 

The answer to your question about how far back you should go when adding bank transactions in QuickBooks Online, would be based on what you'd like to see within your QuickBooks Online account. 

I would at least recommend entering all the transactions from year-to-date (2021) so that you can reconcile this account if need be. For future reference, here's a guide about how to import/upload transactions manually into the system. 

Feel free to reach back out if you have any further questions or concerns. I'm only a post away if you need me. Take care!