My customers order and pay on shopify, I recreate the invoice on QB and need to add the shopify fees

Hi MarkJames,

Thanks for posting in the Community! Let me share with you the steps on how to create a service item for Shopify fee and add it on your customer invoice. 

1. Go to Gear icon and select Products and Services.
2. Select New. 
3. Select Service.
4. Enter Name.
5. Select an Income account.
6. Then select Save and close. 

Once done, open or create an invoice and apply the Shopify fee. Here's how: 

1. On Product/Service column, select the service item created.
2. Enter Amount as negative ( - ).
3. Select Save and close. 

For more detailed information, feel free to check this article: Manually add service fees to invoices in QuickBooks Online. 

Let me know if you have any other questions, I'll be around to help. Have a great day!