4. You can use it to buy a first home. As well as saving for retirement, you can withdraw most of your KiwiSaver funds to use towards buying your first home. You may also qualify for a KiwiSaver HomeStart grant.
How do I get the government contributions?
Basically, you need to put money into your KiwiSaver account - that's it. For every dollar you put in (as long as you're between 18 and 64) the government will match it with 50 cents, up to a maximum of $521.
So to get that full amount each year, you'd need to put in at least $1,043. That works out to roughly $20 a week. Anyone earning $35,000 or more and putting in 3% is already doing this, and will get the full government contribution automatically.
However, if you earn less than that as an employee, or if you're self-employed and aren't regularly contributing, you will need to top up your KiwiSaver account to get the full $521.
But even putting in less than $1,043 is worth it - the government will still match that 50 cents on the dollar. So for example, if you put in $500, you'll get an extra $250.
Does the government hold my money?
Nope. Think of your KiwiSaver account more as an investment account than a bank account. Nobody else can touch your individual KiwiSaver account - it's in your name and it's your money.
The government - through Inland Revenue - has set up KiwiSaver and makes sure that the money you put in (and any employer contributions) goes into your account.
The government also adds to your KiwiSaver account when it matches the money you put in through the member tax credit, up to $521 each year. But that money is yours and cannot be taken back by the government.
How come I don't see my KiwiSaver money right away?
When you first join KiwiSaver there is a bit of a delay, as Inland Revenue must hold your contributions for three months from the date of your first contribution before transferring them to your KiwiSaver provider.
Although your KiwiSaver contributions are deducted each payday, it can take up to three months for them to reach your KiwiSaver account. Your employer first sends them to Inland Revenue, which checks that everything is correct. Inland Revenue then transfers the funds to your provider, including any interest earned during that time.
So where does my money go?
It goes into your KiwiSaver account, which is part of a larger fund managed by a private KiwiSaver provider. Your provider then invests your money into different assets like cash, shares, fixed interest and property, depending on the type of fund you have chosen.
Everyone needs to choose which fund to be in. If you didn't choose when you started in KiwiSaver, the government did this for you by putting you into one of nine "default" funds.
This was to get you started, until you got around to making a choice yourself.
To learn more about the fund you are in today, or what other options are available, have a look at our KiwiSaver fund finder. It's designed to offer you an easy way to compare what you have today with other options on the market.
The exact mix of investments that your money goes into will depend on what type of fund you're in - defensive, conservative, balanced, growth or aggressive. So it's important to choose the right type of fund for your situation, and the fund finder can help you find a type that suits.
Could I lose it all?
Because your money is in an investment fund, it can go up and down in value, so you can lose money. Ups and downs in the market are par for the course.
It's also important to know that KiwiSaver funds are not guaranteed by the government.
That said, particularly because of all the money going into the fund from you, your employer and the government, it would be very difficult to lose all your money in KiwiSaver. It's designed to keep growing.
Theoretically, you could lose it all - no investment is totally risk-free - but it would take a massive disaster for all markets to crash at the same time and permanently lose all their value. And at that point even bank accounts might not be any better off!
What if a provider goes out of business?
KiwiSaver schemes are trusts - so your money is tucked away in a trust and stays yours. That means if a KiwiSaver provider's business were to fall over, your investments wouldn't be affected.
All KiwiSaver providers are regulated by the Financial Markets Authority and have independent trustees that monitor the actions of fund managers.
How risky is this?
KiwiSaver funds, like all managed funds, are designed to spread your risks. They don't typically concentrate all your money in one investment, but split it among many investments, both in New Zealand and overseas.
Some kinds of investments, such as shares and property, come with more risk. You can dial your risk up or down by choosing a type of fund that has more or less of these.
Some investments will do well, others less well, but in the long run the aim is that they will grow your money over time.
Will KiwiSaver change in the future?
KiwiSaver has gone through some changes since its introduction and it's impossible to predict what might happen in the future. Those who joined KiwiSaver before 2015, for example, got a $1,000 kick-start from the government to join, which has since been removed. That said, KiwiSaver is part of the New Zealand landscape now and it would be very hard to make significant changes to it.
If I'm in KiwiSaver, can I still get NZ Super?
Yep. Your KiwiSaver money is for you on top of what you'll get from NZ Super (not instead of). Being a KiwiSaver member does not affect your eligibility for NZ Super or reduce the amount you currently receive.
Get Sorted is written by Sorted's resident blogger, Tom Hartmann. Check out the guides and calculators fromSorted -brought to you by the Commission for Financial Capability - at sorted.org.nz. 
