Hello there, @oscortega.
At the moment, charging your clients for an online processing fee when making a purchase is unavailable in QuickBooks.
What you can do instead is to manually apply the charge to the transaction.
First off, you'll need to set up Non-Inventory or Service item for the credit card fee. I'll show you how:
- Click on the Gear icon located on the top right.
- Select Products and Services under the All Lists column.
- On the Products and Services list page, click ‘New’ in the upper right corner, then choose Service or Non-Inventory.
- Fill in the necessary information.
- Click Save and close.
When you create an invoice, simply add the Convenience Fee item. Check out this article for more insights: Add product and service items to QuickBooks Online.
It's also a good practice to let your customers know about the charge before you invoice them. You can enter a message in your sales forms. Read through this article to learn more about this process: Customize invoices, estimates, and sales receipts in QuickBooks Online.
Let me know if you need anything else. I'm always around to get back and help some more. Thanks!
