Stripe please simplify the whole mess of VAT / GST worldwide reporting & payment to each state/country !
I spent a chunk of the Christmas period figuring out international B2B and B2C invoicing requirements, the rules for cross-border VAT/GST/BTW (UK [pre- and post-Brexit]/Australia/Netherlands/EU) sales tax, and when sales tax may be reclaimed on "invalid" invoices.
It was a surprisingly engrossing endeavor. There is a satisfying underlying logical consistency (from the point of view of a non-accountant). I even toyed with codifying the rules in a machine-executable form...
FastSpring is the same, and even more expensive with expensive currency conversion if you're in EURO