Applying a Deposit to an Invoice

Hello there, @aggiemomFL. 

You got me here to help you link a bank deposit to an invoice in QuickBooks Online.

After receiving bank deposits from your customer, you'll need to link them to an invoice. Firstly, we need to find the deposit entry in your bank register. Here's how:

1. In the Bookkeeping or Accounting section, select Chart of accounts.
2. Click Chart of Accounts, then locate the account you deposited the payment.
3. Select View register, then find and select the correct deposit. 
4. Select Edit, then in the Add funds to this deposit section, find the deposit.
5. From the Received From dropdown menu, choose the customer from where the deposit came from.
6. From the Account dropdown, select Accounts Receivable.
7. Click Save and close.

After that, you can now apply the deposit entry as an invoice payment:

1. Select the + New button, then select Receive payment.
2. From the Customer dropdown, select the customer’s name to display all outstanding credits for your customer.
3. Enter the day you received the payment in the Payment date field.
4. Slect the invoice you need to mark as paid from the Outstanding Transactions section.
5. Select the deposit tine the Credits section, then click Save and close.

You now have accurate records of your transactions, and when it's time to reconcile your accounts, follow this steps in this article for your future reference: Reconcile an account in QuickBooks Online.

Come again if you need further assistance or additional concerns about linking your deposits to invoices. I'll be there to guide you again.