Chalmers is handing down the federal budget – here’s what we know so far

Treasurer Jim Chalmers has overseen back-to-back surpluses but Tuesday’s budget is heading into deficit. Photograph: Lukas Coch/AAP

The treasurer, Jim Chalmers, will hand down his fourth budget on Tuesday, which doubles as a launchpad for the Albanese government’s re-election campaign.

Ahead of the big reveal at 7.30pm on Tuesday, here’s a rundown of what we know so far.