How long does it really take to save a home deposit?

On the most recent annual read from Cotality, covering the September quarter of 2025, a median-income Australian household saving at a steady rate needed around 11 years to reach a 20% deposit on a median-priced dwelling. That was a record for the series.

Domain's read on entry-level homes is shorter — closer to five years nationally for a working couple, and seven years and seven months for a Sydney house, in its 2026 First Home Buyer Report. Different baskets, different assumptions, same direction.

Eleven years. Five years at the optimistic end. Either way, long enough that the plan has a problem the plan cannot fix.

Why saving harder does not close the gap

The instinct when you see those numbers is to save more aggressively. It is a reasonable instinct and it mostly does not work, for a structural reason worth understanding.

You are not saving towards a fixed target. Over the five years to early 2026, entry-level house prices rose 68% while wages rose 21%. That gap is the whole problem. Every year you save, the deposit you are saving for gets bigger, and it gets bigger faster than your capacity to save grows.

It is the reason the numbers keep setting records rather than settling. It is also why "just save for another two years" is advice that can quietly cost someone a decade.

None of that is a reason to panic-buy, and it is not an argument that prices only go one way. It is an argument that a strategy which depends on outrunning a moving target needs a good reason to believe it will work.

The rate question

A lot of people are not really saving for a deposit. They are waiting for rates to fall, on the reasoning that cheaper money will make the numbers work.

Where that stood as at the RBA's 11 August 2026 decision: the cash rate had risen three times during 2026, from 3.60% to 4.35% across February, March and May, and the Board held it at 4.35% in August. Its own language was direct — headline inflation still too high, trimmed mean inflation elevated, and a stated readiness to increase further if upside risks materialised. Inflation was not expected back around the midpoint of the target range until late 2027.

Rates move, and by the time you read this these figures will have a date on them. The durable point is different: a rate cut is not scheduled, and waiting for one is a plan with no end date attached.

There is also a harder truth underneath it. For most people in this position, rates were never the actual blocker. The deposit was. Rates are simply the more comfortable reason to give, because "I am waiting for the market" sounds like strategy and "I cannot get to $150,000" sounds like failure.

It is not failure. It is arithmetic that has moved against an entire generation of buyers, and it deserves a straighter conversation than it usually gets.

What actually changes the timeline

Three things genuinely shorten it.

A larger income. Real, but slow, and it competes with the price growth above.

Help from family. The most common accelerant in Australia, and the most unevenly distributed. Roughly half of buyers now say they could not get in without it, which tells you how load-bearing it has become — and how exposed you are if it is not available to you.

Changing the deposit requirement itself. This is the one people do not consider, because they assume 20% is a law rather than a threshold. It is a threshold. It exists because above it lenders require mortgage insurance, and there are several legitimate structures that reach it without you personally producing the full amount.

The government's 5% Deposit Scheme does it with a guarantee. Help to Buy does it with an equity share. Private shared equity does it with a contribution — with SmartShare, your 2.5% plus purchase costs and a 17.5% contribution from HAS bring the deposit to 20%, so your primary home lender's loan sits at 80% LVR with no LMI.

The cost of the waiting itself

Worth putting a number on, because it usually goes unmeasured.

If you are renting while you save, you are paying for housing you will never own, at the same time as saving for housing you might. That is the real cost of an eleven-year timeline, and it does not appear anywhere in the savings calculation.

Nobody should buy a home they cannot service to escape that. But it is fair to ask whether a decade of waiting is a decision you are making deliberately, or one that has simply been made for you by a deposit threshold you assumed was fixed.

What to actually do with this

Work out which of the two problems you have. If your income would not comfortably service a mortgage on the home you want, that is an affordability problem, and no deposit structure fixes it — the answer is a smaller target, more income, or more time.

If your income would service it and the deposit is the only thing in the way, you have a deposit problem. That is a much more solvable position than it feels from the inside, and it is worth ten minutes with someone who can tell you honestly which of the four routes reaches you.

Frequently asked questions

How long does it take to save a 20% deposit in Australia?

On Cotality's most recent annual figures, as at the September quarter of 2025, a median-income household saving at a steady rate needed around 11 years to reach a 20% deposit on a median-priced dwelling. Domain's entry-level figures for a working couple are shorter, around five years nationally and seven years and seven months for a Sydney house.

How much deposit do I actually need to buy a house?

20% is the threshold above which Lenders Mortgage Insurance is not charged, not a legal minimum. You can buy with less through a high-LVR loan with LMI, the Australian Government 5% Deposit Scheme, Help to Buy, or private shared equity such as SmartShare, which requires a minimum 2.5% plus purchase costs.

Should I wait for interest rates to fall before buying?

Rate movements are not scheduled or guaranteed, and as at the RBA's August 2026 decision the cash rate had risen three times during the year before being held at 4.35%. Waiting is a strategy without an end date. It is also worth checking whether rates are the real blocker or whether the deposit is.

Will falling prices make it easier to save a deposit?

A lower price means a smaller deposit in dollar terms, but deposit requirements move slowly and incomes move more slowly still. Very few households save their way across this gap in any market.

Do I need genuine savings for a deposit?

Not for every route. SmartShare does not require genuine savings, so a gift, a settlement, an inheritance or proceeds from a sale can be used as your contribution.