New Zealand Superannuation Fund Contribution Rate Model

Page updated 29 May 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 Budget Economic and Fiscal Update 2009 (BEFU).

Since the last release with the Pre-Election Economic and Fiscal Update 2008 (PREFU) 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.

A change to this version of the model is that it includes a reduced capital contribution of $250 million in the 2009/10 fiscal year and then no further capital contributions until 2020/21. 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
29 May 2009	Budget Economic & Fiscal Update (BEFU) 2009 New Zealand Superannuation (NZS) Fund Track Released 29 May 2009. 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-v1.xls(38 KB)
29 May 2009	Impact of an eleven-year contribution holiday on the New Zealand Superannuation (NZS) Fund Released 29 May 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-29may09.pdf(182 KB)
28 May 2009	New Zealand Superannuation Fund Contribution Rate Model - BEFU 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-v18.xls(293 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)

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