What many people don't realize is that the operational and customer service costs of payments don't scale with payment amount. Customers will cost almost just as frequently dispute, have questions, have problems, ask for help, attempt to defraud etc with a $1 transaction as they will a $100 or $1000 transaction. This is the real killer with micro payment schemes. Customer service costs scale more with number of payme…
Yeah, all of the other payment processors have settled on somewhere between 2-4% fees to handle fraud. See PayPal. So either Patreon has an order of magnitude more fraud going on or is massively wasteful in its business operations. Probably both.
To illustrate how bad it can get - in EU VAT, if your yearly sales are over 30,000 Euros (it may even be 10k, I don't know the latest limit), you have to charge your customers/patrons the appropriate tax rate of the country that they are in. And if you don't, you may end up having to deal with the tax authority of that particular country.
People take this lightly, but as many are finding out, its serious business.
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And - fraud is not handled by Paypal. Any chargeback, fraud, refund is your responsibility. You can even get your Paypal suspended for those reasons.