Thank you for reaching out to the Community. The deposit transaction amount will show as negative based on the category type or the posting account where you deposit them. You'll need to move the expected deposits from the Undeposited Funds account to the appropriate bank account via Journal Entry.
Here's how to create a journal entry:
Click the + New icon.
Select Journal Entry.
Enter the Date of the transaction.
On the first line, select Undeposited Funds from the drop-down list in the Accountcolumn.
In the Debits column, enter the amount of the deposit.
On the second line, select the appropriate bank account from the Account column drop-down list.
In the Credits column, enter the amount of the deposit.
Press Save and close.
This process will record the deposit as a deduction from the bank.
Once done, you can follow the steps below in grouping the journal entry to the payments:
Click the + New icon.
Choose Bank Deposit.
Select the payments and the Journal Entry you created (the total should be zero).
Upon sharing the steps above, I'd still suggest contacting your accountant. They can guide you with the process to ensure your books are accurate. You can also find one by checking out this article: Find an accountant or bookkeeper.
Please feel free to drop a comment below if you have any other questions. I'll make sure to get back to you. Take good care!