Plans by the government to crack down on the use of labour hire companies under its principle of same job, same pay, have received a boost after One Nation advocated a similar policy of its own.

Prime Minister Anthony Albanese has promised changes to ensure two people performing the same job must be paid the same and, on Tuesday, the eventual Senate passage of any such laws was all but guaranteed when One Nation indicated it would provide the extra votes needed on top of the Greens.