Thanks for getting back, @Raeka8. I’ll help you with recording the security deposit in QuickBooks Desktop (QBDT).

To start with, let’s create an item for the security deposit, then link them to a liability account. Here’s how:

1. Go to List from the top menu and select Item List.
2. On the Item List window, click Item, then New.
3. Select Service on the Type drop-down.
4. Enter the Item name and fill in other necessary fields.
5. On the Account drop-down, select a Liability account.
6. Click OK to save the item.

Check out this article for more information about adding, editing, and deleting items.

Once done, we can now record the payment by using a sales receipt. Kindly follow the steps outlined below:

1. Go to Customers menu and select Enter Sales Receipts.
2. Select the tenant on the Customer: Job drop-down. 
3. Fill in the relevant information at the top of the form like the Date and Sale No.
4. On the first line item, choose the security deposit.
5. Enter the amount of the item.
6. Click Save & Close.

Refer to this article for reference when creating sales receipts.

Feel free to reply if you need further assistance with recording your transactions. The Community always has your back. Have a great day!