Rent and Invest vs Buy in Australia: Full 2026 Breakdown

With median house prices above $1M in Sydney and over $800K in Melbourne, an increasing number of Australians are asking whether they're better off renting, keeping their deposit invested, and letting compound returns do the work.

It's not a fringe idea anymore. It's a legitimate financial strategy — but only if you actually invest the difference. Renting and spending the savings on lifestyle is not the same thing.

We modelled 6 scenarios using our Buy a House or Invest calculator to show you exactly when this strategy works and when it doesn't.

Assumptions: $100K deposit, 6.5% mortgage rate, $350/week rent, 4% property growth (regional average), 8% investment return (balanced portfolio), 30-year loan.

After 10 years:

• Buyer: Property worth $740K, loan balance $333K, net equity $407K
• Renter+investor: Portfolio worth $247K, rent paid $218K

Winner: Buyer by ~$160K. Even at modest regional growth, leverage makes the buyer ahead. But the renter has a fully liquid $247K portfolio with no transaction costs to access it.

Assumptions: $150K deposit, 6.5% mortgage rate, $500/week rent, 5% property growth, 8% investment return, 30-year loan.

After 10 years:

• Buyer: Property worth $1.22M, loan balance $500K, net equity $720K
• Renter+investor: Portfolio worth $370K, rent paid $310K

Winner: Buyer by ~$350K. At 5% property growth and with leverage, the buyer pulls away significantly. This is the scenario where buying clearly wins — affordable enough to enter, growing fast enough to reward the leveraged position.

Assumptions: $200K deposit, 6.5% mortgage rate, $700/week rent, 5% property growth, 8.5% investment return (growth portfolio), 30-year loan. Stamp duty in NSW: ~$40K.

After 10 years:

• Buyer: Property worth $1.63M, loan balance $667K, net equity $963K
• Renter+investor: Portfolio worth $500K, rent paid $435K

Winner: Buyer by ~$460K. But the buyer has also paid roughly $540K in mortgage repayments over 10 years vs $435K in rent — a $105K cash flow disadvantage. The buyer wins on net wealth but has less lifestyle flexibility.

This is the scenario property bulls don't want to model. Take the $750K Brisbane property but drop growth to 3%:

• Buyer: Property worth $1.01M, loan balance $500K, net equity $510K
• Renter+investor: Portfolio worth $370K

Buyer still wins by ~$140K, but the margin shrinks dramatically. At 2% property growth (below inflation), the renter+investor starts catching up and can overtake by year 15-20.

The takeaway: property doesn't have to crash for renting and investing to be competitive. It just needs to grow slowly while shares grow normally.

After running dozens of scenarios through the calculator, these are the variables that matter most:

1. Property growth rate — above 5%, buying almost always wins due to leverage. Below 3%, investing catches up
2. How much of the rent savings you actually invest — if you spend the difference, buying wins every time because of forced savings
3. Time horizon — under 7 years, transaction costs make buying expensive. Over 15 years, leverage and capital growth compound heavily
4. Stamp duty — this upfront cost ranges from $15K (QLD FHB concession) to $55K+ (VIC $1M property). Use our stamp duty calculator for your exact state
5. Interest rate — every 1% increase in mortgage rate costs roughly $6,000/year on a $600K loan. Rates above 7% significantly hurt the buying case

Run your own numbers with the Buy a House or Invest calculator. Every assumption is editable — we're not trying to sell you property or shares. Just the truth.