FAQ: Does Stripe offer discounted fees to Non-Profits?
Question: We are a registered charity - does Stripe have discounts for non-profit organizations?
Answer: Yes they do, but it is limited to receipt-able donations. They specifically exclude auctions. You have to ask for it. Set up your Stripe account, then contact their support team. Assume it will take a few weeks to put in place. https://support.stripe.com/questions/fee-discount-for-nonprofit-organizations