If I disconnect bank login, and reconnect using a new login that the bank gave me, will my QB online information reconnect for accounts that were already there?

 I can share some information about disconnecting a bank account login, @m110.

Yes, you can disconnect the online banking account in QuickBooks Online (QBO). Your existing accounting data will not change if you disconnect an account from online banking. Just make sure to categorize all the transactions in the For Review tab.

Follow the steps below on how to disconnect an account from online banking:

1. Go to Bookkeeping, select Transactions, and then click on Bank transactions.
2. Choose the tile for the bank account, select the pencil icon (✎) and click on Edit account info.
3. Select the Disconnect this account on save checkbox.
4. Click on Save and Close.

Refer to this article about disconnecting a bank account: Disconnect accounts connected to online banking in QuickBooks Online. 

Here's how you can use bank rules to automatically categorize transactions from your bank. Check out the setup bank rules to categorize online banking transactions article for more information about speeding up the bank review process.

You can always drop by here if you need further information about disconnecting accounts in QBO. I'll be happy to assist you further. Have a wonderful day!

Thank you so much!  Got all that...but when I reconnect the same bank accounts with a different bank login, will QB recognize that those were the existing accounts that were there? or will it think these are new bank accounts that need to start fresh?

Hello m110,

Thank you for reaching out to the QuickBooks Community! To answer your questions, QuickBooks will ask whether or not you would like to Link it to an existing account or connect to a new one once resetting/reconnecting your account. Let me know if you have further questions or need clarification! We are here to help! the