Hi Ismail2,
This would be possible if you have no transactions between June 2018 and January 2019. If you have, you'll want to reconcile them first to correct the Beginning Balance of your January reconciliation.
The Beginning Balance is the account balance on the last reconciled transaction in your bank register. To update this balance, you'll want to reconcile from July to December. That way, the account balance on the last reconciled transaction in December will become your Beginning Balance in your January reconciliation.
You can open this article for additional reference: About Beginning Balance Discrepancies
Feel free to post again if you have questions.
