In many countries retirement insurance is automatically witheld from salary. In Poland it's 19,52% of salary. https://www.mpips.gov.pl/ubezpieczenia-spoleczne/

In many countries retirement insurance is automatically witheld from salary. In Poland it's 19,52% of salary. https://www.mpips.gov.pl/ubezpieczenia-spoleczne/ubezpieczenie-emerytalne/skladka-na-ubezpieczenie-emerytalne/ https://www.mpips.gov.pl/ubezpieczenia-spoleczne/ubezpieczen... In Australia it's 9% http://crr.bc.edu/briefs/australia%E2%80%99s-retirement-system-strengths-weaknesses-and-reforms-2/ http://crr.bc.edu/briefs/australia%E2%80%99s-retirement-syst...