You don't need to post endless threads - you've posted about 5 or 6 different threads in the last couple of hours when you could have simply included all the questions in one post - or bothered to use the search facility to find the answers required.
As I said - you can find out the answers via a quick Google search.
Is it even a business? It's freelancing.
Yes, it's a business. Self employment, technically, but still a business conducting economic activity. Seeing as I feel generous, I'll tell you the rough details.
- Compulsory social insurance contribution of 350zl a month in the first two years.
- VAT is only applicable once you turn over more than 100,000zl a year (150,000zl from next year)
- Yes, you'll need an accountant.