When it comes to KiwiSaver, fund types might sound technical but at their core, they reflect the same choice we all face in everyday life: balancing risk and reward!

Whether you’re saving for your first home or working towards your retirement, understanding the difference between conservative, balanced, growth and aggressive funds can help you invest your money more strategically. Here’s how they work and what they might mean for your return. 

What Makes the Difference? The Mix of Growth and Income

According to the Retirement Commission, every KiwiSaver fund is built around a mix of growth assets (like shares and property) and income assets (like cash and bonds). The more exposure you have to growth assets, the greater the potential returns, and the higher the potential fluctuations.  Lower exposure to growth assets will mean more stability but less long-term upside. 

Sorted.co.nz breaks funds into five categories based on their growth asset exposure: 

 A Look Across the Market

According to the Retirement Commission’s 2025 policy report, KiwiSaver has shifted significantly in recent years. While conservative funds dominated at the scheme’s launch, as of late 2024, growth and aggressive funds now account for about 50 percent of total assets under management. Balanced funds make up about 30 percent, and conservative funds less than 20 percent. 

There are interesting patterns when you break it down by age. Younger members predominantly invest in growth options but even members aged 51-64 still hold nearly half their saving in growth or aggressive funds. After 65, that falls to less than a third. 

What It All Means for Everyday Kiwis

Let’s cut through the jargon and look at what each fund types could mean for you: 

• Conservative or Defensive Funds
  Lower risk but also lower potential return. Think of these funds as choosing steady predictability. If you’re close to retirement or have short-term needs (like saving for the deposit for your first home), these could make sense. 
• Balanced Funds
  These are ‘middle road’ funds: a mix of growth and income that smooths out the ride while still having some potential for growth. Balanced funds have become the default choice for many, but don’t provide the opportunity for growth as some other options.
• Growth Funds
  These funds are higher risk but also offer great potential to build wealth over time. These funds can be ideal if you’re seven or more years away from retirement and riding out market ups and downs won’t keep you awake at night. 
• Aggressive Funds
  Aggressive funds are the most volatile, but historically they are also the most rewarding over the long haul. The potential risks and rewards are likely greater at both ends of the continuum, but the additional risk can pay off for those investors who have the foresight, patience and confidence to ride it out. 

Why Picking the Right Fund Matters

Choosing the right type isn’t just financial theory, it can translate into hundreds of thousands of dollars in potential returns over the life of your fund. 

Take for example ‘Chris’ a 30-year-old Kiwi who is earning a salary of $120,000. Chris has a KiwiSaver balance of $30,000 and is contributing 3% of his salary, which is matched by his employer.

Putting this scenario into the KiwiSaver calculator on the Government’s Sorted.co.nz website, the estimated value of the persons fund at age 65 would be: 

* Sorted KiwiSaver Calculator

Which highlights why fund choice matters!

Smart Moves for Every KiwiSaver Member

While fund choice is crucial, it is also important to note that there is no ‘one-size-fits-all’ when it comes to what is right for you. Your adviser is best placed to provide personalised advice based on your age, stage and risk profile, taking into account:

1. Your “time horizon”
   How long until you need the money as longer timelines may suit higher growth exposure. 
2. Your comfort with risk
   Whether you are comfortable with riding out the ups and downs from share-market investments for better long-term potential?
3. Fees and performance
   Even within categories, some funds deliver better net returns than others and your adviser can offer advice on the best performers in your fund category.

Final Thought

KiwiSaver fund types provide a way for you to understand and navigate risk and reward depending on your age, stage and risk profile. Conservative funds give peace of mind, growth and aggressive funds offer longer-term potential, and balanced funds can offer a middle path.

The healthiest KiwiSaver approach reflects your stage of life, long-term goals, and how much ups and downs you can stomach.

To work out what your KiwiSaver risk profile is, fill in the brief questionnaire on our KiwiSaver investor type calculator here.

Our advisers are also on hand to provide you with personalised advice on your KiwiSaver strategy. A review is free and takes less than 30-minutes. To book, click here. Plus, if you book a free mortgage, insurance or KiwiSaver review this month, you’ll go in the draw to win a month’s free mortgage repayments on us, up to the value of $5,000!

The content of this article should not be taken as financial advice, or a recommendation of any financial product. These insights are based on our industry know and personal opinion. Threefold is not liable or responsible for any information, omissions, or errors present.