It will take more than four years and at least another election for the federal government to achieve its new economic goal of a jobless rate "comfortably" below 6 per cent and to stabilise public debt, according to new analysis ahead of the budget next week.

The Deloitte Access Economics report also backs the government's plan to accelerate personal income tax cuts to help revive the economy from recession, dismissing the claim they are "unfair" and calculating that high-income earners will pay a larger share of the nation's tax burden than before.