Thank you for getting help with your invoice, PTELanc.

Showing the balance due amount is indeed very important because it tells your customers how much they only need to pay and how much credit was applied to their invoices. We can achieve this by editing your invoice template, and I'm happy to walk you through the steps.

1. On the invoice transaction page, click the Formatting tab.
2. Choose Customize Data Layout. If you're prompted to create a copy of the template in use, select Make a copy.
   
3. In the Additional Customization window, select the Footer tab.
4. Put a checkmark in the Print column for Payments/Credits and Balance Due. You'll notice that they're also added to the previewed invoice on the right. However, they overlap each other so you want to click the Layout Designer button to edit the layout.
   
5. In the Layout Designer window, drag and arrange the box for each added line until they don't overlap. Please note that each amount has its own boxes, too, so be sure they are lined up. You can click Properties to edit the borders or adjust the font size of the selected box.
   
6. Click OK when you're satisfied, and click Print Preview in the previous window to see the result. Click the Layout Designer button again to make more changes until you're satisfied with the result.
7. Click OK to save your changes.

You should now see the added lines when you preview your invoice, especially the Balance Due. 

I'm including this article for more comprehensive steps about customizing an invoice template: Use and customize form templates.

Feel free to visit us back using this thread if you have other concerns about invoicing or anything about QuickBooks. Take care always!