Work / What is deducted from a salary in Poland apart from Income tax? [155]

Hi, guys,,, i work in Poland and i got a job contract 2000zl each month. But the problem my boss cut from my salary 952zl each month and told me its my tax what i should pay... I am really disappointed how is possible that he cut 952zl each month.. So i get paid 1148zl after tax... Unfortunately i don't speak Polish and i can't understand about it.... Is there someone who can explain me about it? Please