Labour Leader Andrew Little maintains housing has to be central part of today's Budget from the Government.

Finance Minister Bill English is to unveil the Budget, and the Government's fiscal plans, at 2pm today.

Andrew Little said if the Government's doing its job, it has to do something about housing.

"There's housing needs at the vulnerable end - low income people who can't get their own roof over their heads - that would need to be addressed. There's also the housing affordability issue - for those who every time they look, they've been saving hard, they cannot afford to get into their first home."

Green Party co-leader Metiria Turei also said housing should be the centrepiece of the Budget, but she doubts that will be the case.

"There's no acceptance that we have a housing crisis, and that it can be fixed. So therefore we won't see any of the real fixes. There won't be capital gains tax, or a restriction on foreign buyers."

Andrew Little is also looking to see moves from the Government today on the SuperFund.

Payments into the Cullen Fund have been on hold since National came to power with the Government not wanting to continue payments at a time it was recording deficits

Mr Little is critical that the Government hasn't put an extra cent into the scheme.

"There was a programme paying into that fund, that was about meeting the obligations of the future of New Zealand Super. I want to start seeing some money being put into there as well."

Although he supports the Government, ACT Party Leader David Seymour is also expecting disappointment from today's Budget.

He said there'll be nothing for taxpayers and the biggest thing that won't be in the Budget is managing the adaptation of superannuation in the long term.

"People in my generation know they're not going to get Super at 65, but they're also being told we're not allowed to have a discussion about it, and I think that's wrong."

New Zealand First Leader Winston Peters is expecting spin and no substance from the Government. He said the country wants a vision from the National Party today, but he's not expecting one.

"They've cut down more forests to put out there propaganda than to build homes in their own country. The public have had a gutsful of wishful thinking, over-optimistic forecasts, and this man who always says he's aspirational."

Meanwhile, Labour's deputy leader is expecting a big boost for health in the Budget.

Annette King said all the signs are there.

She said from what the Prime Minister, Finance Minister, and Health Minister have been saying, she's hoping for a health budget increase of around $700-million.