Work / Cost of Living, Average Salaries and Job sites in Poland [263]

Yes but not all of that is paid by the employee.

Employer pays over about 19,8% of gross salary to ZUS.

Employee pays about 14% of their gross salary which is deducted at source.

Law / Tax in Poland? [57]

Yes 6000 is reasonable - it is what a lower end chief accountant would get in a Polish owned company in a big town.

Work / Cost of Living, Average Salaries and Job sites in Poland [263]

ZUS takes about 15% of your salary, but is capped at an earnings level of about 70.000 PLN.

Average take home pay in Poznan is approx 2000 (about 3000 gross). You could live frugally on that but to be comfy you would want a minimum 4000 gross - rent for a one bedroom place starts around 700.

Plenty of information available on average wages and costs is on the govt official statistics site gus.pl