Hello there, @jimboc21.

First, let's make sure that the $50 payment is deposited to undeposited funds to clear the balance due on the invoice. Since you've already created a bank deposit for the fee, we need to open and link it to the received payment. 

Here's how to deposit the payment to the Undeposited Funds account:

1. Go to Sales and select Invoices.
2. Locate and click on the specific invoice.
3. Select Edit invoice.
4. Click Receive Payment.
5. On the Outstanding Transaction, put a checkmark on the box of the specific invoice.
6. Click on the dropdown arrow in the Deposit to option, then locate and select the Undeposited Funds.
7. Click Save and close.

These are the steps on how to add the payment to the deposit:

1. Go to the Accounting tab on the left menu.
2. Select view register.
3. Navigate and click the specific deposit (-$5).
4. Select who the payment was from ($50).
5. Review the deposit total with the bank fee.
6. Select Save and close.

For detailed information about the steps provided above, you can refer to this link: Record and make bank deposits in QuickBooks Online.

You may visit these links to guide you on how to categorize your transactions and reconcile your account flawlessly:

• Categorize and match online bank transactions in QuickBooks Online.
• Reconcile an account in QuickBooks Online.

The Community always welcomes you for further inquiries with regard to invoices and bank fees. Have a great day ahead!