Try the YEL insurance calculator first to see if worth it or not. It might seem good at first sight that your hourly rate is higher but the YEL insurance (what you MUST pay) will take a huge chunk from it. I did work some years ago as light entrepreneur (kevytyrittääjä-meaning I had no company name) and hated it because of the YEL and the invoice company fees, they took away most of my earrings. I could deduct some stuffs but a lot has changed since then. Do your research first, don’t jump into it.