In a surprise move, both the Green Party and New Zealand First have voted in favour of the National Government's Budget.

Labour, on the other hand, voted against Steven Joyce's first Budget as Finance Minister, which sees changes to tax thresholds, Working for Families and a boost in the accommodation supplement put money in the back pockets of many low- and middle-income earners.

Speaking to The AM Show on Friday morning, Labour deputy leader Jacinda Ardern called the accommodation supplement a "subsidy for landlords" and only a short-term fix.

"A lot of the pressure that has come on families has come as a result of increasing housing costs, increasing rents. That accommodation supplement's going to get gobbled up pretty damn quickly."

During Thursday's post-Budget debate in Parliament, National's Auckland Central MP and Education Minister Nikki Kaye said she was "absolutely shocked that the Labour Party could even consider voting against this".

Greens co-leader James Shaw called the Budget a "highly flawed piece of legislation", but his party fell in behind it "on the basis that when it comes to people who are on low incomes, something is better than nothing".

"The fact that people who are, you know, earning low incomes are getting $5 a week back is why we are voting for this bill, because $5 a week when you have so little is absolutely necessary."