How to redo previous revonciliation

Hi there, @Ina, and Welcome to the Community.

Allow me to share some information about how to redo a previous reconciliation to fix an old reconciliation in QuickBooks Online.

When you reconcile an account in QuickBooks, you need to compare each transaction on your bank statement with the transactions entered in QuickBooks. If the transactions match, it means your accounts are balanced and accurate. However, if you have reconciled a transaction by mistake, you may need to remove it from the reconciliation.

If you're currently using QuickBooks Online Accountant, you can use the "Undo a reconciliation" feature to unreconciled previous transactions without having to manually edit each transaction from within the register. 

To help you with the steps, you can click on this link: Undo a reconciliation.

If you're using a different version, you'll need to manually unreconcile each transaction to undo the reconciliation. Let me provide you with the process.

Here's how:

1. Go to the Accounting tab on the left panel.
2. Under Your Company, select Chart of Accounts.
3. Choose the account you’re working on, and click on View Register.
4. Select the transactions you want to unreconcile.
5. Keep on clicking the R status until it shows blank or cleared (C).
6. Click on Save.
7. Choose Yes in the confirmation window.

Additionally, here are some articles that you can read to help you learn how to unreconcile an individual transaction from a completed reconciliation also, learn what to review so you can start reconciling:

• Undo or remove transactions from reconciliations in QuickBooks Online
• Fix issues for accounts you've reconciled in the past in QuickBooks Online

Let me know if you have any other concerns or questions about your previous reconciliation in QuickBooks Online. I'll be happy to help. Keep Safe!