National has lost a seat on final election results but Prime Minister John Key is going ahead with the formation of his new, second-term government.
He has a single vote majority and he's confident of signing a support agreement with the Maori Party's three MPs.
"I'm in a position to formally announce the National Party, along with the support of ACT and United Future, is in a position to form a government and I've formally advised the governor-general of my intention to form that government," he told reporters.
Final results released on Saturday after special votes were counted gave the Greens an extra seat and National lost one because its percentage of the party vote went down.
National has 59 seats in the 121-member Parliament, and with the support of ACT and United Future Mr Key's total is 61 against the 59 of all the other parties.
When he signs up the Maori Party, which could happen on Sunday, he will have a comfortable 64 votes.
Two electorate results are under appeal but the outcome won't change the number of seats the parties hold.
In Christchurch Central, a dead heat on election night, National's Nicky Wagner has come through to take the seat from Labour's Brendon Burns by 45 votes.
He's asked for a judicial recount and says the result reflects the number of people who have left the city since the earthquakes.
Labour's Carmel Sepuloni has won Waitakere by just 11 votes after specials were counted, turning over cabinet minister Paula Bennett's 349 election night majority.
She has asked for a recount as well and says it was always going to be difficult to retain what was a strong Labour seat before the 2008 election.
Ms Sepuloni, who was celebrating at a Labour Christmas function, said the party did hundreds of late enrolments in the last month before the election, which require special votes.
"I knew that if those people that we enrolled late went out to vote then I knew it was looking like we had a chance," she told NZ Newswire.
She said there was a good turnout of voters in her electorate.
The Greens are ecstatic about winning another seat, which brings their total to 14 - more than they've ever had before.
They're bringing in Mojo Mathers, who will be New Zealand's first deaf MP.