> It's not that complicated. It's basically equivalent to the US sales tax US sales tax is more complicated than you'd think. I recall having a very amusing co

> It's not that complicated. It's basically equivalent to the US sales tax US sales tax is more complicated than you'd think. I recall having a very amusing conversation with an Amazon engineer about the software they procured to calculate sales tax on purchases, which promised "24/7" uptime but also required you to shut it down and run an hours-long migration every so often.