Finished a job. Customer paid me via Zelle. How do I mark the invoice as paid?

Hi there, @arkvalleyinfo! I'm here to help you record your customer's invoice payment.

We'll have to record your customer's invoice payment manually if your bank isn't connected yet with QuickBooks Online (QBO). Here's how:

1. Go to the +New button.
2. Select Receive payment.
3. Choose your customer. 
4. Select the appropriate Payment method (ACH Transfer).
5. Choose Payments to deposit in the Deposit to dropdown menu.
6. Put a checkmark on an open invoice.
7. Click on Save and close.

Since some banks add service charges and processing fees, we'll also have to record the fee without editing the original invoice payment you've received. 

1. Go to the +New button and select Bank Deposit.
2. Select the invoice payment you've recently added. 
3. Scroll down to Add funds to this deposit section.
4. Select who the payment was from (for example, the bank charging you).
5. In the Account dropdown menu, look for Bank fees and service charges.
6. Enter the amount fee as a negative number. For example, if the fee was US $.50, enter –.50.
7. Select Save and close.

On the other hand, if you've already connected your bank account with QBO, the latest transactions are automatically downloaded and categorized. In this case, I suggest matching the downloaded transaction with the one you already entered to avoid getting duplicates. 

This article about setting up how you want your downloaded transactions to be categorized might come in handy for you: Set up bank rules to categorize online banking transactions in QuickBooks Online.

Please let us know if you need further assistance with recording transactions in QBO. We're always here to assist. Take care.