The Abbott government's pared-back broadband plan is three times more cost effective than Labor's ambitious scheme and would leave Australians $16 billion better off, according to the first independent cost-benefit analysis of the national broadband network.

In a scathing verdict on the Rudd and Gillard governments' plan to introduce fibre directly to 93 per cent of premises, the cost benefit analysis finds the policy is so expensive it would barely leave the community any better off in net terms than if broadband investment remained frozen at present levels.

The much-anticipated report finds households and businesses will benefit from quicker downloads but the much-vaunted societal benefits of fast broadband – such as improvements to health and education services – will probably be extremely limited.

The cost benefit analysis panel, led by former Victorian Treasury head Michael Vertigan, modelled the estimated costs and benefits of expanded broadband access from 2015 to 2040.