Tax reviews not on agenda after poll

Neither major party would undertake extensive reviews of the tax system if elected to government on July 2.

Neither major party would undertake extensive reviews of the tax system if elected to government. (AAP)

A root-and-branch review of Australia's complicated taxation system won't be on the agenda for a Labor or coalition government.

Treasurer Scott Morrison promised on Friday the government would "get straight back on with it" if elected on July 2, having already undertaken a review through the abandoned tax white paper process.

His Labor counterpart Chris Bowen told the National Press Club debate Mr Morrison's claim there was a review behind budget measures was laughable, while ruling out revisiting a root-and-branch review under Labor.