Stripe Tax
Stripe (tweet, Hacker News):
Stripe Tax lets you calculate and collect sales tax, VAT, and GST with one line of code or the click of a button. Know where to register, automatically collect the right amount of tax, and access the reports you need to file returns.
Internet businesses are required to collect taxes in over 130 countries and in most US states. Staying compliant can be challenging, especially as your business scales. Tax rules and rates change constantly and vary based on what and where you sell. If you ignore these complexities, you risk paying penalties and interest on top of uncollected taxes.
We built Stripe Tax to simplify tax compliance, so you can focus on growing your business.
They only charge 0.5%, but the catch seems to be that you still have to actually send the money to each jurisdiction multiple times per year. Apple, Paddle, and FastSpring will handle that for you.
See also: The untold story of Stripe (via Hacker News).
Previously:
