How do we add a credit card fee to our customers invoice at the bottom of the invoice

Hi mber951,

Being able to enter your transactions accurately is important to keep your books precise. QuickBooks Online is designed to make your invoicing process smooth and easy. I'll be happy to assist you with this.

To add a credit card fee to your customer's invoice, you first need to create a Product/Service for that service fee, which you'll then use to apply to the desired invoice. Here's how. 

Create a service fee item or non-inventory product

1. Go to the Gear icon.
2. Select Products and Services.
3. Click New.
4. Select Service or Non-inventory if you wish.
5. Fill in the information, including an account. Leave the price section blank to enter as needed on the invoice.
6. Click Save.

At this point, all you're left to do is add this Product/Service as a new line in the invoice of your choice and include the appropriate dollar amount. Keep an eye on tax rates if applicable. For more details on this procedure, I recommend going through this article: Add service fees manually to invoices

I hope this helps! Don't hesitate to stop by if you need anything else.