Work law reform hinges on small business

ACTU president Michele O'Neil says employees at any size business have the right to bargain. (Lukas Coch/AAP PHOTOS) (AAP)

The size of small businesses to be exempt from new workplace laws is still being thrashed out as the government continues negotiations.

A parliamentary report into the government's workplace relations laws recommended increasing the size of small businesses exempt from multi-employer bargaining from 15 to 20 employees.