Managing a deposit for future use is essential today to ensure smooth transactions and seamless record-keeping, @Eve2019. Let's go through the detailed steps, from recording a deposit to applying it as a credit to an invoice.

To record a deposit for future application to an invoice, you should select an account that affects Accounts Receivable. Begin by recording the deposit. Here’s how to proceed:

1. In Banking, click Make Deposits. 
2. Select the customer who made the deposit in the Received from. 
3. For the From Account, choose an Account Receivable and put the amount afterwards. Ensure to enter all important details. 
4. If done, hit the Save & Close.

After creating the Invoice, you can now apply the deposit as a credit to it. Follow the steps below for guidance:

1. Go to the Customers and select Receive Payments. 
2. Choose the customer you chose when creating the deposit in the Received From field. 
3. Enter the amount, check the box for the invoice you created, and tick Apply Credits from the Unused Credits below. Select the credit from the Available Credits and tap Done.
4. If completed, you can now Save & Close.

To ensure that your QBDT records align with your actual bank accounts, make sure to reconcile your accounts accordingly.

Accurately applying payments to created invoices plays a vital role in managing sales. If you need further assistance with handling deposits or any QuickBooks Desktop concerns, feel free to reach out anytime.