In what world does he not have to pay tax because the customer is in the US? You have to comply with tax regulations where the customer is located. And that is

In what world does he not have to pay tax because the customer is in the US? You have to comply with tax regulations where the customer is located. And that is the problem that Stripe Tax helps with. If you only sell locally then it's not exactly hard to implement and stay up to date with the requirements where you live.