Allow me to share some insights regarding mobile check deposits in QuickBooks Online.
Yes. QuickBooks Online does offer a mobile check deposit feature, but it's important to note that eligibility criteria apply, and you need to sign up for QuickBooks Payments and open a QuickBooks Checking account to use it. However, keep in mind that the account's eligibility will still be reviewed to ensure that you meet the requirements.
If you are eligible for mobile check deposit, you will see the Deposit check option when you click into the Get Money section of QuickBooks Online.
Here are some articles about QuickBooks Checking and the mobile check deposit feature that you can read: