income tax (to sg gov) 100% for sure need to pay liao.
epf equivalent is called cpf there. only if u becum pr got cpf, if u no sg pr then u got 100% salary & no cpf deduction at all.
minimum wage I'm not sure. last time I use spm can get 3k while my kolik using degree only get 2.6k. it's also depend on ur work pass type (whether work permit / employment pass / etc) & based on ur skillet too.