I'm from Spain, where bureaucracy and taxes for new businesses are quite ridiculous. What I did is:
- If you're making just a few hundred $ a month, don't even bother. Yes, it's technically illegal, but nobody's gonna put you in jail for not paying a few dozen $ of taxes a month. They have better things to do, and so have you.
- Once you reach a decent income, hire an accountant to do all the paperwork. I pay 70€/mo and all I have to do is once a quarter, send a summary of expenses and income, and everything is done for me. Plus, I have someone to consult if I have more complex questions.
Hope it helps.
EDIT: Forgot to say, don't incorporate until you have quite a substantial income. Here at least it's expensive and accountants will charge you more. Just register yourself as a self employed person, which is like a one-person company here in Spain. Like freelancers, etc. I'm sure the same thing exists in other countries.