[3] His parents worked hard, his mother as a cleaner and his father as a labourer, to give Ngaro and his siblings education and training opportunities.

[5] Ngaro's grandmother, Rita Goldstein, is of both Cook Island and Jewish descent, her father being of Polish-Jewish ancestry.

Prior to entering Parliament, Ngaro was a consultant in community-led development and governance with expertise in New Zealand, Cook Islands and Canada.

[11][12][5] He later won a Sir Peter Blake Emerging Leader Award for his work on the Tamaki Transformation Project.

[16][17][18] He reportedly said, in his concession statement on election night, that "'the sandpit of local government' was not for him and he would aim higher to where the 'big people' play.

[25] This bill proposed amendments to the legislation governing Auckland Council that would prohibit candidates from holding office in more than one local board area.

[32] He also led the purchase by the government of motels in Gisborne and Hawke's Bay in an attempt to address social housing shortfalls in those regions.

He apologised after his words were criticised by both Labour leader Andrew Little and Minister of Finance Steven Joyce.

[24] In mid-May 2019, there were reports that Ngaro was considering forming his own Christian party, providing a potential coalition partner for National at the 2020 general election.

Ngaro attracted media attention during the election campaign when he posted a Facebook attack ad claiming that a vote for his Labour opponent Phil Twyford would lead to the decriminalisation of recreational cannabis and all drugs and unlimited abortion.

Though Ngaro subsequently deleted his post, Twyford captured a screenshot and accused his opponent of spreading fake news.

Ngaro's post was also criticised by Labour MP Ruth Dyson, Auckland councillor Richard Hills, political commentator Ben Thomas, and former Internet Party leader Laila Harré.

"[50] Specifically, Ngaro said National's support of the Labour government's enactment of gender self-identification laws in 2021 and its decision to prohibit conversion therapy in 2022 were a departure "from the values I held [and] believed the party was about.

[52] Ngaro subsequently contested the 2023 Port Waikato by-election in late November 2023 as a NewZeal candidate.

[58][59][60][61] Ngaro later apologised and issued a statement saying "he did not read the full Facebook post before sharing and said the word "tragedy" should have been used instead of "holocaust".

[58][59][62] In response, National Party leader Simon Bridges defended Ngaro's right to voice his opinion while stating that it was not something he would say.

[64] In 2009, Alfred Ngaro allegedly punched former Tamaki College art teacher Christopher Scott Roy for not bowing his head during a prayer,[65] but the allegations were later dismissed in court by Chief Judge Graeme Colgan who wrote in a report: "I am sceptical about the veracity of Mr Roy's accounts of relevant and crucial events in this case.

In a judgment released mid November 2013, Employment Relations Authority member Tania Tetitaha found there were several issues with Roy's statements about the alleged accusations.