Labour says it raised more than $1 million from online donations during the election campaign. National won't say how much it raised.
Labour campaign manager Megan Woods said behind the selfies and crowd gatherings there was a big effort "under the hood" to run a well-oiled campaign and raise funds.
"We had over 7000 volunteers. In the last few weeks we either knocked on or rang 150,000 households."
Of the 20,000 people who donated to Labour, 9000 did it for the first time, she said.