Budget 2024: NZ First emerges as a Budget big winner

Frontline services - that's police, education and especially health - are getting a boost.

But it's actually New Zealand First that's emerged as a big Budget winner, with investments into some of its key priority areas.

There's more than $225 million allocated to help recruit and retain 500 new police officers, and NZ First Minister Shane Jones' new regional infrastructure fund gets $1.2 billion.

This is not Winston Peters' first rodeo.

A number of New Zealand First's coalition promises are rolling in the green.

"Our country has just changed gears from reversing backwards to forwards and progress," Peters' said.

More than $650 million of new money will go to policing over the next four years - $226 million is intended to help deliver the National-NZ First promise of 500 new police officers. That includes $191 million to recruit and retain them and $34.6 million for things like vehicles and body armour.

"Funding not only those extra officers, but also funding the help with the many cost pressures they face," Finance Minister Nicola Willis said.

But the NZ Police Association said it will only be 500 extra officers compared to November last year, when there were a lot of vacancies. 

"We expected an actual 500 additional officers from our baseline rack and that doesn't appear to be the case. That's disappointing," Police Association vice president Paul Ormerod said.

"I would like to have more police officers, I would like to have 1000 to get a balance with Australia. But at least it's a start," Peters said.

Jones has also got his $1.2 billion regional infrastructure fund for projects such as improving resilience to major weather events.

"$200 million is dedicated to climate resilience. That is flood protection, stop bank projects, because the reality is we are dealing with volatile weather," Jones said.

There's $2.7 billion for roads, public transport, and rail - another area of keen interest for NZ First.

Meanwhile, Peters' Foreign Affairs Ministry is only getting minimal cuts compared to some other agencies.

When asked whether she has essentially written Peters a blank cheque, Willis said: "We have advanced priorities that we think New Zealanders share. We have delivered on key parts of our coalition agreements."

Other frontline services are also seeing a boost including $16.68 billion across three years for health.

"This barely keeps the lights on in the health system and we actually know more investment is needed," Labour health spokesperson Ayesha Verrall said.

There is also $2.9 billion over four years for education.

"Making clear decisions to prioritise health, education, and law and order... two thirds of our new spending is going into those three areas," Willis said.

As for the other coalition partner, David Seymour is not getting ACT's dream of a flattening tax scale.

"We went with the Nat's version of tax cuts, which I fully support. Not everyone is as ambitious at the ACT party, but hey," Seymour said.

But don't be too sad for the ACT leader - he had a flurry of pre-Budget day announcements such as bringing back charter schools and a $1.7 billion boost for Pharmac.