Prime Minister John Key says a raft of changes coming into force tomorrow will have real benefits for families.
From July 1, more New Zealanders will get free doctors' visits, vehicle licensing will become cheaper, and paid parental leave payments will increase.
Funding will also increase for palliative care, which will allow hospices to expand their services for terminally ill people.
As promised in last year's budget, GP visits and prescriptions will be free for under-13 year-olds from tomorrow.
Mr Key said the change was possible because of careful management of the government's books. It was expected to benefit 400,000 children at a cost of around $30 million a year.