> "You have the option to pay either 8.9% flat or 5.9% plus $.95 per transaction. "
> Wowza, thats steep!
FastSpring customer here.
First, they handle lots of boring and complicated stuff for you, not just taxes. How much would it cost you to accept all major credit cards, PayPal, checks and (international) wire transfers, and provide customer service for all of those transaction types?
Second, if you sell the more expensive B2B stuff like we do, and/or sell lots of your stuff through them, you can ask for a custom rate.