New Zealand Superannuation Fund Contribution Rate Model

Page updated 15 Dec 2009

Treasury model used to calculate the government's capital contribution to the New Zealand Superannuation (NZS) Fund.

This model in MS Excel workbook format calculates the contribution rate for pre-funding New Zealand Superannuation (NZS). The model was updated at the time of the release of the Half Year Economic and Fiscal Update 2009 (HYEFU).

Since the last release with the Budget Economic and Fiscal Update 2009 (BEFU) the model’s data inputs have been updated. Specifically, the model uses the latest five-year forecasts of the Fund’s earnings and tax payments and longer-term projections of nominal GDP and total net (after-tax) NZS expenditure.

This version of the model includes a reduced capital contribution of $250 million in the 2009/10 fiscal year and then no further capital contributions until 2019/20. Government policy is to review the length of this non-contribution period as economic and fiscal conditions change. Any changes will be reflected at each update of the NZS Fund projections.

The MS Excel workbook New Zealand Superannuation Fund Contribution Rate Model is a special purpose document and cannot be supplied in HTML format. The MS Excel workbook contains a macro which restores the assumptions in the model to their defaults. You will need to click 'Yes' to enable macros or 'Enable Macros' when prompted on opening the file. The modelling guide in Adobe PDF format can be supplied in HTML format if requested from Information Services.
Using MS Excel Files Using PDF Files

Doc. Date	Title	Download
15 Dec 2009	New Zealand Superannuation Fund Contribution Rate Model - HYEFU 2009 Update Note that you will need to enable macros in the spreadsheet in order to use the Reset button to restore assumptions in the model to their defaults.	nzsf-model-v19.xls(302 KB)
15 Dec 2009	Half Year Economic and Fiscal Update (HYEFU) 2009 New Zealand Superannuation (NZS) Fund Track - With or Without Holiday Provides tracks of the capital contributions and the size of the NZS Fund, for both the eleven-year contribution holiday and a scenario where the automatic contributions were continued, over a 40-year horizon.	nzsf-track-v3.xls(43 KB)
15 Dec 2009	Impact of an Eleven-year Contribution Holiday on the New Zealand Superannuation (NZS) Fund: Updated for HYEFYU 2009 Released 29 May 2009, updated 15 December 2009. Provides background on the NZS Fund, a summary of the differences between the eleven-year contribution holiday, and a scenario without a contribution holiday.	nzsf-11yrhol-15 dec09.pdf(59 KB)
22 May 2009	New Zealand Superannuation (NZS) Fund Contribution Rate Model Modelling Guide Explains the line-by-line modelling used, and some of the mathematics behind the calculations in the model. There is also information on where other, related material on the NZS Fund can be sourced from the Treasury website.	nzsf-model-guide-may09.pdf (45 KB)

Page top