> However, depending on the country, tax laws can be fairly advantageous for small business owners
My wife is a loan officer at a mortgage company. It's a running joke that it's a pain in the ass to qualify small-business owners, because so many of them claim so little actual income on their tax returns, even when they're quite obviously wealthy.
Many years ago, I had a small side software business. My revenue would be almost pocket change category for me today and honestly wasn't all that much for the effort I put into it at the time. But one nice thing was that it wasn't even a stretch to bring to income down to just over zero by offsetting various computer and office expenses (in addition to the costs the business incurred directly, which weren't much).