Using the Mobile check deposit feature is essential to deposit your checks remotely, tytistdean. I'm here to share the reason why it's not available on your end.
The feature is subject to eligibility criteria. It isn't available to all QuickBooks Checking or QuickBooks Money users.
Some of the criteria required to utilize this functionality are your QuickBooks Checking or Money by QuickBooks account must be active and in good standing. Once you're eligible, you'll see the Deposit checks option when you click on Get Money.
I also suggest contacting our Customer Care so that one of our specialists can discuss how you can be eligible to use this feature. Use this link for the contact information: Contact Payments Support.
Additionally, I'm adding this reference to get all the details you need about cash flow and checking accounts in QuickBooks Payments: The QuickBooks Checking Account and The Cash Flow Menu.
If you have further questions about QB checking or any QBO-related concerns, you can comment below, and we'll respond to you as soon as possible.