Can u help why bank statement and bank acc in qb not 0.00 after reconcile?

The discrepancy occurs when your Beginning balance doesn't match your bank statement. If this is your first reconciliation and you didn't enter an Opening balance when creating the account, you can add one with a journal entry. Otherwise, the Beginning balance will default to 0.00.

If you have a previous reconciliation, review the audit log to find earlier reconciled transactions that were Deleted, as these can cause a beginning balance mismatch. For more information about fixing beginning balance concerns on an account you've reconciled before, refer to this article: Fix issues for accounts you've reconciled in the past in QuickBooks Online.

Feel free to reply if you need any additional help.