Welcome to the Community, @milindkale. Depositing checks in your QuickBooks checking account is pretty easy.
If you're trying to make an actual deposit of your checks, you can sign up for QuickBooks Payments and QuickBooks Checking. Once approved, you can deposit checks using mobile check deposit.
Please know that Mobile check deposit is only available on iOS users. Before depositing a check, confirm that the check meets our requirements.
Here's how:
Sign in to your QuickBooks Online from a mobile device.
Select Cash Flow, then select Send Money from QuickBooks Checking balance.
Select Deposit checks, then enter the check amount. Make sure it isn’t more than the limit shown on the screen.