This will allows you to:

Identify lost checks, lost deposits, and unauthorized wire transactions.Detect and prevent excess/unjustified bank charges and ensure transactions are posted correctly by your bank.

Manage your cash more effectively. Proper management of funds not only saves money, it makes money for you.

Protect yourself. By timely reconciling and promptly objecting to your bank about any unauthorized, fraudulent, or forged checks presented to your bank and paid by that bank, you can relieve your business of responsibility for the shortfall and transfer the risk to the bank. This is often enough reason to reconcile frequently.