Poland introduces high financial prize for people who come up and report their employers to the tax authorities for untaxed payments.

The problem is however that the labour tax is primarily impacting the *employee.* For an average monthly salary of 5000 PLN the effective tax rate is 30% since the income tax allowance is *very* low in Poland and national insurance tax is actually *regressive.*

https://notesfrompoland.com/2021/08/10/poland-to-shift-punishment-for-under-the-table-payments-from-employees-to-employers/