I know that the polish government has a incentive for your own business where you only pay 80% ZUS...
30% for two years :P Or in real terms, about 350zl at the moment.
I have no idea how much tax I would pay or how to pay it...
Basically, 350zl a month to ZUS regardless, plus 18% of profits. Poland is still excellent for 'creative accounting' and so you can get away with a hell of a lot - but you definitely need someone to do the books for you.
At the end of the month, the accountant just tells you 'right, pay ZUS and pay whatever-zl to the taxman'. You can pay quarterly, but it's probably not worth the headache.
Is it worth it to register as your own business?? I work quite a few hours for a English language teacher - about 35 a week... Also do you still have to pay ZUS when you aren't working? (eg. If you have a holiday)
Hmm...it's a good question. You've got the freedom to do whatever the hell you want with your own business, but if you aren't working, you're still stuck paying 350zl a month (with the prospect of paying nearly 900zl a month in 2 years!) regardless of what you do. I suppose you could close the company down in the holidays, but I'm not sure if they would allow you to claim the reduced rate again if you re-opened.
Is there a difference between registering as your own business and being a self-employed worker (like freelance) like there is in the UK??
Don't quote me on this, Marta is the expert - but there should be nothing stopping you working under 'umowa o dzielo' where they pay you (and deduct tax) - but you have your own obligaton to sort out ZUS. As far as I understand it, if you go down this route - then as long as you have health care, there should be no reason to register your own business. These are effectively freelance contracts - but bear in mind that if you don't pay ZUS, you won't be able to claim anything from the Polish state.
I'm really confused because in my new job they offered to pay me more if i sorted out the tax and ZUS myself, because it is less bother for them... but I don't know exactly what I should register as AND what I need to be able to do it (I have a NIP and PESL from my last job).
Basically - go to the office we went to, register there. They'll tell you to come back in a few days, so you do that. Once you go back, you go to the Urząd Skarbowy and 'upgrade' your NIP to self employed status. Once you do that, you wait for the REGON to come through the post (Waiting for mine...), then go to ZUS and tell them that you want to start paying for their nice buildings.
Then, once your company starts (that you say on the documents ) - you basically have until the 10th of the following month to pay tax and ZUS due for the month of starting.
Basically - the best calculation you can make is - "Will I be paid 500zl or more a month extra by being self employed?". If not, don't bother - it's really not worth your while. It's definitely much easier just to let them sort it out.