When we did reconcile for 2021 - Nov & Dec for 2021 saved as Nov/Dec 2020 and we can't seem to clear them. How do we delete all reconcile reports going back to b4 then?

Thanks for posting again in the Community, Michelle. You're in the right place since we experienced the same concern in the past and we're able to help them correct the saved reconciled transactions and QB balance. Let me share how we do it.

If you have an accountant who uses QuickBooks Online Accountant, we can request to undo the reconciliation of the two incorrectly reconciled transactions. You can read this article for detailed steps: Undo a client’s reconciliation in QuickBooks Online Accountant.

However, if you don't have an accountant we can manually undo the reconciliation in the Chart of accounts section. Feel free to follow the steps below:

1. On the left navigation, choose Transactions.
2. Select the Chart of accounts.
3. Pick the account you reconciled incorrectly by clicking the View register icon below the Action column.
4. Tap the funnel icon on the upper left of the table grid to filter out the date.
   
5. Click each transaction. Then, in the Reconcile column beside the Deposit section, tap the R sign and leave it blank to undo reconciliation.
   
6. After that, click Save. Perform this for all the transactions that are under 11/30/2020 and 12/31/2020.

Check out this article for more info: Undo or remove transactions from reconciliations in QuickBooks Online.

Additionally, we have articles here that might help with managing your reconciliations:

• Fix issues for accounts you've reconciled in the past in QuickBooks Online.
• Make an account inactive on your chart of accounts in QuickBooks Online.
• Reconcile previously deleted and re-entered checking or credit card transactions.

We're glad to have you here. Please come back if you have additional questions. We'll answer it promptly. Take care, and have a good day.