Saving a first home deposit as a family: seven habits that work

Families who save a first home deposit fastest usually do a few simple things well. They agree on one shared goal and automate their savings on payday. They make the most of KiwiSaver and the government contribution. And they protect their progress, so one setback doesn't undo months of saving.

Saving with kids in the picture is harder. Money comes in and goes out fast, and there's always something. These seven habits come from the families I work with in South Auckland, and they work on ordinary incomes.

1. Agree on one number and one date

"Saving for a house" is vague. "$35,000 by March 2028" is something you can plan for. Work out your target together. If you might qualify for a Kāinga Ora First Home Loan, you may only need 5% of the price rather than 20%. My article on buying with a 5% deposit explains how.

2. Have a monthly money meeting

Pick a night once a month, look at where your money went, check your progress and agree on next month. Twenty minutes is plenty. Couples who do this argue less about money, because decisions are made together rather than on the fly.

3. Pay yourselves first, automatically

Set up an automatic transfer into a separate deposit account on the day your pay arrives, before anything else goes out. If you can't see the money in your everyday account, you won't spend it. Start with an amount you can sustain, and increase it when you get a pay rise.

4. Get the full government contribution, every year

The government adds 25 cents for every dollar you contribute to KiwiSaver, up to $260.72 a year. To get the full amount, you need to put in at least $1,042.86 between 1 July and 30 June.

Most full-time workers reach that through their pay. But a parent on parental leave, working part-time or self-employed can easily fall short. Check your balance in May, and make a voluntary top-up before 30 June if you need to. It's free money toward your deposit.

5. Check your KiwiSaver rate and fund

The default contribution rate rose to 3.5% in April 2026, and your employer matches it. If you can manage more, a higher rate builds your deposit faster. Every extra dollar can be withdrawn for your first home, apart from the $1,000 you leave in.

Your fund matters too. A fund that suits retirement in 30 years might not suit buying a house in two. See where you could be with my KiwiSaver first home calculator.

6. Plan for the costs you know are coming

Car repairs, school uniforms, birthdays and Christmas aren't surprises, but they often get paid for out of the deposit savings. Put a small amount aside each pay into separate pots for these. Your deposit account then only goes up.

7. Protect the plan

The fastest way to lose a deposit is to lose an income. Keep a small emergency fund of around three months' essential expenses, so a broken-down car doesn't derail you. And think about what would happen if one of you couldn't work for a few months because of illness or injury.

Many families only look at insurance once they've bought, but protecting your income while you're saving matters just as much. It's one of the things I go through in a free chat.

Want help building the habits?

As well as insurance and KiwiSaver advice, I offer money coaching for couples. It covers agreeing on goals, setting up a simple system and building habits that last. See budgeting for your first home and beyond, or get in touch.

Quick answers

How much do I need to put into KiwiSaver to get the government contribution?

To get the full government contribution of $260.72, you need to contribute at least $1,042.86 between 1 July and 30 June. The government adds 25 cents for every dollar, and you must earn $180,000 or less.

Should couples have joint or separate savings accounts for a house deposit?

Many couples use one joint savings account just for the deposit, with automatic transfers from each pay. It makes progress easy to see and keeps the money separate from everyday spending.

How big an emergency fund should we have while saving for a house?

A common guide is enough to cover around three months of essential expenses. It stops one unexpected bill from wiping out your deposit savings.

Sources and further reading

This article is general information, not personalised financial advice. Rules and criteria can change, so check the latest details with the official sources above or talk to an adviser about your situation.

About the author

Kyle Hasson (FSP1010252) is an Insurance and KiwiSaver Adviser at Moneyplant in Papakura. He helps young South Auckland families prepare for their first home, protect it, and keep growing their savings after. More about Kyle