I have some information about how to record a bill payment against the deposit. You can write a check and set the account as accounts payable. This way, your deposit will show as a credit when paying the bill. Let me walk you through how.
Go to the Banking tab at the top, then select Write Checks.
Enter the vendor's name, date, and payment amount.
In the Expense tab under the Account column, choose Accounts Payable.
Pick a vendor in the Customer:Job column. Click Save & Close.
After writing a check, create a bill by going to the Vendors menu and then Enter Bills.
Once you're ready to pay the bill, record a payment against your deposit. Here's how:
Go to the Vendors menu at the top. Then, tick Pay Bills.
Highlight the bill you wanrt to associate with the payment.
Tap the Set Credits button. The deposit will display in the set credits screen, make sure it is checked.