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The Medical Assurance Society KiwiSaver Plan is a restricted KiwiSaver scheme. To be eligible to join you must meet one or more of the criteria detailed on page 2 of our Product Disclosure Statement.

Why MAS?

Our Commitment

At MAS, we're committed to doing what we can to make a positive impact on the health and wellbeing of future generations of New Zealanders, and for a sustainable future. It’s why we’ve implemented a socially responsible investing approach across $1.6 billion of superannuation funds and insurance reserves, excluding companies from the fossil fuel, tobacco and armaments industries. 

Active investment management

MAS employs investment managers who actively seek opportunities to increase returns while moderating potential risks. While this may cost a little more than cheaper alternatives that simply follow market indices, we’re confident that this approach will add greater value to Members’ savings over the long-term.

Different because we care

At MAS, we think differently about our service to Members.  Our advisers aren't paid an incentive: they're commission-free.  And as a benefit of membership, their advice comes at no additional cost.  Just more ways we show that we have our Members' best interest at heart.

Our Members, our priority

MAS is a mutual, a membership based organisation set up exclusively for New Zealand professionals and their families, taking care of their needs so they can focus on doing good work and doing good in their communities. At MAS we count it a privilege to protect what matters most to our Members - their assets, their future income that will provide for them and their loved ones, or their plans for life after retirement.


MAS was founded by doctors nearly 100 years ago, and today more than 32,000 professionals and their families choose MAS, including 85% of NZ Medical Professionals*.

The Medical Assurance Society KiwiSaver Plan has been trusted by our Members for over 10 years and now has over 15,000 Members with more than $650,000,000 invested.

Choose the right fund

Everyone has different circumstances. With the Medical Assurance Society KiwiSaver Plan, there are seven funds to choose from, which means you can choose a fund that meets your needs. Our risk profiler can help you work out what fund might work for you and your situation.

If you still aren't sure of the right fund for you, you can talk to a MAS adviser for personal, tailored advice by calling us on 0800 800 627.

If you're ready to join a KiwiSaver plan that makes a difference towards a sustainable future and that actively seeks to optimise returns then join the MAS KiwiSaver Plan online in just 5 minutes.

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More information

A copy of the Product Disclosure Statement can be viewed here. The Trustees of the Medical Assurance Society KiwiSaver Plan are the issuer and manager of the Plan.

Investments in the Medical Assurance Society KiwiSaver Plan are not guaranteed. If you would like to receive a hard copy of the Product Disclosure Statement, or for personal, tailored advice, you can talk to a MAS adviser by phoning 0800 800 627 or emailing

Although care has been taken to ensure the accuracy of this information, MAS does not assume any liability arising out of its use.


* Market share from Medical Council of New Zealand Register as at August 2017.