Hi there,
It's good to know you're using QuickBooks with Square Payments. Don't worry, I'll assist you with changing your invoice status to paid and deposited.
First, it's important to note the possible reason why the paid invoices stay on the Not Deposited status. One of the main reasons is you might have chosen the Undeposited Funds account as the Deposit to account when receiving your client's payment. To deposit these payments, here's how:
1. Go to the Plus icon at the top.
2. Select Bank deposit under Others column.
3. On the Choose an account drop-down, select the bank account you wish to deposit the payments.
4. In the Received from column, select the invoices by putting a checkmark on the box.
5. Then, click Save and close.
Once done, go back to the Invoices page and the status should now change to Deposited. For your reference, you can visit this article for further guidance: Bank deposits.
That should do it! Feel free to keep me posted on how you make out. You're more than welcome to leave a comment below in case you've got other questions. I'll be here to help. Otherwise, enjoy the rest of your week! :)