Treasurer Josh Frydenberg will on Tuesday signal a drive to get people in their mid and late 60s to work longer and undertake training to keep in touch with the jobs market as the government confronts long-term pressures to the budget bottom line.

Mr Frydenberg will use an address to the Committee for the Economic Development of Australia to argue a "new dynamic" in the way the country's population is ageing will require new policies to ensure the nation's economic heavy lifting is not left to a diminishing number of younger people.

The government has to release its latest intergenerational report, which will map out the direction of the nation's finances over the next 40 years, by March.

The last iteration, heavily criticised for its focus on Labor policies, was released by then-treasurer Joe Hockey but a suite of promises underpinning it have been ditched.