> It's not a problem for me today. It was a big problem when I had no revenue, needed to do all the paperwork, meet ridiculous local accounting requirements connected to selling software in a different currency than my local one, write code, setup licensing, shipping the software to the clients etc.

Since this depends mostly on what country you are in/you are setting up the country in, what specific country was this? Because it's not the same everywhere, and by the sounds of it, is a lot more complicated than most other EU countries. Germany is famously bureaucratic, as just one example, and differs wildly from the type of experience you'll have in Sweden.

> It wasn't so simple when I had 0 capital and just wanted to ship software to see if people want to buy it.

Most people, accountants or not, won't tell you this, but you're usually fine starting to charge people and running a business "unofficially" for a couple of months without having to pay any fines or anything when you finally "regularize" your situation. Many accountants have dealt with this sort of setup countless of times too. But again, people won't advice you to take this route, but it is one option if you just wanna ship software and see if people want to buy it. If no one buys it, just don't tell anyone :) Unless you're doing five figures or more in revenue, no one will mind.

For me it's very stressful to not comply with the regulation on purpose hoping I am too small to not get punished by the authority. It would be easier to just ignore the regulation. I get this makes me not well predisposed to do business in EU. Thank you for your advice.