The chief executive Australia's peak aged care body, Aged & Community Care Providers Association (ACCPA), has welcomed spending announced in tonight's budget.

But, he says, the aged care sector is "still under huge financial pressure".

Treasurer Jim Chalmers announced $2.5 billion to fund the government's election commitments, including a requirement for registered nurses be on site at all nursing homes 24 hours a day.

The Treasurer also committed to care minutes per resident increased to 215 minutes per day.

Both were key recommendations of the Aged Care Royal Commission.

The budget also provided $1.4 billion for other measures including continued funding for COVID-19, implementation of an Aged Care Complaints Commissioner and Inspector-General of Aged Care, as well as investments to help prepare the ground for major reforms to home care.

But significant expenditures have not yet been accounted for.

For example, ACCPA chief executive Tom Symondson it expected the government to fund the outcome of case being considered by the Fair Work Commission, which could see the award for aged care workers increased by 25 per cent.

"We don't know what that's going to cost yet," Mr Symondson said.

He said the newly-created Independent Hospital and Aged Care Pricing Authority was currently determining the true cost of deliver aged care.

Its estimate won't be known until next year.

"The big game in town is actually next year's budget," he said.