Good evening, xuxranching.
I appreciate you reaching out to the QuickBooks Community for support. I'd be happy to provide some information about uploading bank transactions.
When it comes to importing bank transactions, QuickBooks Online provides two options to chose from. The first option is to connect your bank/credit card account(s) to QuickBooks. If you prefer not to have your bank connected, the second option would be to manually upload your transactions. I've attached articles with step by step instructions on how to proceed for each option.
If you have any other questions, feel free to reach back out. Im here to help!