The coalition will oppose Labor's controversial budget tax changes, even though it opens them up to another attack by the government for voting against tax cuts.
Opposition industry spokesman Andrew Hastie accused Labor of "classic wedge politics" for bundling a popular tax offset in the same bill as tax hikes on investors, which the coalition argues is an attack on aspiration.
Mr Hastie said the coalition supported the working Australian tax offset, which will provide wage and salary earners a $250 a year tax refund.
