Hello there, @flowmaster5.
QuickBooks Payments charges a fee each time you process a transaction. The processing fee depends on the payment method that you'll use.
You can check this article to know the fees per payments: What are the fees for QuickBooks Payments?
For future reference, I've included an article you may want to read in any of your available time: How to understand your subscription rates and charges.
Let me know if you have any other questions. It'll be always my pleasure to help.
