Invoice on prepayment

Welcome to the Community, mvershinina-aigr.

I can offer assistance on how QuickBooks Online handles prepayment.

You can set up a deposit or use the retainer process to remove the amount from your income.  This way, the deposit or retainer is treated as a liability until it is applied to services.

First, let's create a liability account to track the amount received from customers.

1. Go to Settings and select Chart of accounts.
2. Click New.
3. From the Account Type ▼ dropdown menu, choose Current liabilities.
4. From the Detail Type ▼ dropdown menu, select Client Trust Accounts - Liabilities.
5. Enter a Name for the account (for example, Trust Liabilities).
6. Select a Default Tax Code, enter an Unpaid balance, and an as of date.
7. Click on Save and close.

Next, create a retainer item to be selected when creating an invoice for a deposit or retainer payment.

1. Go back to Settings and select Products and services.
2. Click New.
3. From the Product/Service information panel, select Service.
4. Enter a name for the new product or service item (Retainer).
5. From the Income account ▼ dropdown menu, select the liability account created in Step 1.
6. Click Save and close.

For the complete process, you can check this article: Record a retainer or deposit.

You can also personalise your invoices to show the information most relevant to your business.

If you have further questions about managing prepayments or other issues, please comment below. I'm always around to assist.