Can I put transaction fees on an invoice

Happy to help, @dsnash. I hope you're having a great day so far.

Yes, you can put transaction fees on your customer invoices in QuickBooks Online(QBO). I'd be pleased to share the detailed steps on how to accomplish this. 

You'll need to create an item fee and add this to your invoice. Follow the instructions below. 

1. Go to the Sales tab, then choose Product and services. 
2. Click the New button on the right pane and select Service as your type. 
3. Enter a unique name in the field. 
4. Complete the necessary fields, then hit Save and close. 

When creating an invoice, don't forget to add the service item in the form. See the sample screenshot below for your reference. 

For more details about the process, see this link: Add service fees manually to invoices.

To track all your fees, run the account you use in creating the service item. Let me show you how: 

1. Go to the Accounting menu, then choose Chart of Accounts. 
2. Locate the appropriate account in the list. 
3. Click Run report. 

Additionally, feel free to visit these articles on how to personalise sales forms and handle customer transactions in QuickBooks: 

• Customise invoices, estimates, and sales receipts in QBO
• Sales and customers

Don't hesitate to notify me if you have further questions about your account. As always, I'm here to further assist you if you need help. Keep safe, dsnash.