Tune into 1 NEWS' hour-long Budget 2018 special live on TVNZ1 and here at ONE NEWS NOW at 2pm.
The government has trickled out pre-Budget announcements including conservation, foreign affairs and homelessness, ahead of the Budget today at 2pm.
Finance Minister Grant Robertson announced on May 8 a "slightly better-than-expected" run-up to the government's first Budget, with a surplus sitting $910 million higher than forecast by Treasury last December.
He said that was an indication that business profits were higher, along with a continuation of "strong" employment growth.
The Labour-led government will spend $42 billion on infrastructure and critical public services over the next five years, $10 billion more than forecast by the previous government, Mr Robertson revealed last Thursday.
Transport, health and education look to be priorities in today's Budget.
The announcements so far:
Sunday, May 13 – Early intervention services for children
The government unveiled a $21.5 million funding increase for thousands more young children to access the additional learning support before they begin school.
It is said to help ensure that an additional 8,000 more children will be supported for the next four years.
Early intervention services will also receive an extra $272,000 capital to support the IT costs of additional staff.
Saturday, May 12 – Predator control
An extra $81 million will be allocated to the Department of Conservation for predator control, over the next four years.
Conservation Minister Eugenie Sage said it would mean DOC would not have to "scramble" in order to carry out essential work.
However, National's Sarah Dowie called the funding boost "another broken promise".
"The $81.3 million increase over four years is a 4.6 per cent increase and barely more than inflation - and it's less than what National put up," Ms Dowie said in a statement.
"National's 2017 Budget committed more than $107 million to DOC – the largest funding injection in its history."
Friday, May 11 - Te Uru Rākau, forestry
The new forestry service, Te Uru Rākau, was given an allocation of $15 million for operating funds, Forestry Ministry Shane Jones announced last week.
"I'm pleased to be able to announce today that Budget 2018 will set aside $15 million of operating funds to boost the capability of the new service, enabling it to work with landowners, provide forestry expertise and deliver on the Government’s forestry objectives," Mr Jones said.
Wednesday, May 9 - Frontline domestic violence
The government announced a $76 million funding boost in next week's budget for those working on the frontline against family violence.
The boost of funding will go to around 150 providers of anti-family violence services.
Tuesday, May 8 - Foreign affairs and development
Over $900 million will go into the foreign affairs and development sector over the next four years.
Foreign Affairs Minister Winston Peters announced in a pre-Budget speech that an extra $714.2 million would go to foreign aid, mainly around the Pacific region over the next four years, and the Ministry of Foreign Affairs would see an increase of $150.4 million over the next four years, as well as $40.3 million in capital expenditure.
Mr Peters said the funding increase would open up 50 more positions in foreign policy and the New Zealand embassy in Stockholm, Sweden would reopen.
Friday, May 4 - Homelessness
The government says it is "pulling out all the stops" to reduce homelessness, allocating $100 million into tackling homelessness and urgent housing.
In the pre-Budget announcement, the government say they will "boost funding for ongoing services for more than 900 households in the Housing First programme in Auckland, Christchurch, Tauranga, Wellington and Lower Hutt", costing $20.5m, and expand Housing First to 550 homes in other regions to a cost of $42.9m.