Rank-and-file Labor members are urging the Albanese government to curtail negative gearing and capital gains tax concessions as part of an ambitious reform agenda, which targets 75 per cent homeownership by 2035.

The call from Labour for Housing, a national group of members similar to the influential Labor Environment Action Network, will pile pressure onto Prime Minister Anthony Albanese and Treasurer Jim Chalmers, who insist they have no plans to curb the tax breaks, but who concede Treasury is exploring options to do so.