The New Zealand Superannuation Fund invests money, on behalf of the New Zealand Government, to help pay for the increased cost of universal pension entitlements in the future. By doing this the Fund adds to Crown wealth, improves the ability of future Governments to pay for universal pensions, and ultimately reduces the tax burden on future New Zealanders.

A long-term, growth-oriented investor, the Fund has around NZ$40 billion in assets, including $6 billion invested in New Zealand.

The Fund is managed by a Crown entity, the Guardians of New Zealand Superannuation.