Social Investment Agency

Social Investment Agency
Māori: Toi Hau Tāngata
Agency overview
Formed1 July 2017
JurisdictionNew Zealand
Employees37
Annual budget$NZ6 million
Minister responsible
Agency executive
  • Andrew Coster, Secretary for Social Investment and Chief Executive
Websitesia.govt.nz

The Social Investment Agency (SIA; Māori: Toi Hau Tāngata) is a New Zealand government department that leads the implementation of the government's investment approach to social spending.

The concept of "social investment" describes the use of data to target spending on social services towards certain disadvantaged groups with the aim of achieving the best "return" in terms of long-term social outcomes and government costs resulting from social issues.

Originally run out of a unit within the Ministry of Social Development, the Social Investment Agency was first established as a departmental agency hosted by the State Services Commission on 1 July 2017. It was later known as the Social Wellbeing Agency (2020–2024) and reverted to its original name when it was re-established as a standalone central agency.