The question people are really asking
When someone asks whether they should rent or buy, they are usually asking one of two different questions: "What is the financially optimal choice?" or "Should I prioritise stability and ownership?" These are related but not the same question, and the answer to each is different.
This guide focuses on the financial side — what the numbers actually show when you account for all the costs and opportunities of each path. The personal and lifestyle factors matter too, but they are harder to generalise.
The true cost of buying
The most common mistake in rent-vs-buy comparisons is only counting the mortgage repayment. Ownership involves several other significant costs:
- Stamp duty. A major upfront cost that ranges from roughly 3% to 6% of the purchase price depending on the state, property type, and whether you qualify for concessions. On a $750,000 property in Victoria, stamp duty is around $40,000.
- Council rates. Typically $1,500 to $3,500 per year for a residential property depending on location.
- Maintenance and repairs. A rough rule of thumb is 1% of property value per year for ongoing maintenance — though this varies significantly. Older properties and those with large land areas can cost considerably more.
- Insurance. Building and contents insurance is required by most lenders and generally costs $1,500 to $4,000 per year.
- Strata levies (if applicable). Apartments and townhouses typically incur strata fees ranging from $2,000 to $10,000+ per year depending on building facilities and size.
- Interest on the mortgage. Over a 30-year mortgage at typical rates, total interest paid often equals or exceeds the original loan amount.
The opportunity cost of the deposit
A $150,000 deposit is not just a $150,000 cost. It represents capital that, if invested elsewhere, would generate returns of its own. If you put $150,000 into a diversified share portfolio instead of a house deposit and earn 7% per year, that money grows to roughly $570,000 over 20 years.
This does not mean renting is always better — it means the comparison needs to account for what the deposit could have earned. If property prices grow at 6% per year, the value of the home you bought with that deposit also compounds significantly. The comparison between these two growth paths is what a proper rent-vs-buy analysis does.
The true cost of renting
Rent gets described as "throwing money away" because you do not build equity. But renters also avoid the ownership costs listed above — no stamp duty, no maintenance bills, no council rates, and the flexibility to move without transaction costs.
The relevant comparison is not rent versus mortgage repayment — it is rent versus the total cost of ownership, including the opportunity cost of the deposit and the locked-up equity. In many Australian cities, particularly Sydney and Melbourne, rent payments are often substantially lower than the equivalent cost of owning the same property when all costs are factored in.
The price-to-rent ratio
One useful shorthand is the price-to-rent ratio: the property's purchase price divided by the annual rent. A ratio below 20 generally suggests buying may make more financial sense. Above 25, the financial case for renting (and investing the difference) is typically stronger.
In many Australian capital cities, price-to-rent ratios are well above 30. A $900,000 apartment renting for $600 per week has an annual rent of $31,200, giving a ratio of about 29. At high ratios, property prices have outrun rental income, and buyers are paying primarily for capital growth assumptions rather than current yield.
What favours buying
- Long-term stability in one location (reduces transaction costs per year)
- Strong capital growth in the local market
- CGT exemption on the family home (a significant tax benefit)
- Low price-to-rent ratios in the target area
- The non-financial value of stability, security, and being able to modify your home
What favours renting
- High price-to-rent ratios in the target area
- Career or lifestyle flexibility — likely to relocate within 5 to 7 years
- The ability to invest the deposit and cost difference at strong returns
- Markets where prices are elevated relative to income growth and historical averages
Common misconceptions
"Renting is throwing money away"
Rent provides shelter, flexibility, and freedom from ownership costs. It is a cost for accommodation, like food or transport. Mortgage interest is also "throwing money away" in the same sense — it does not build equity. Building equity comes from paying down principal, which is a form of forced saving.
"Property always goes up"
Australian property has had strong long-run growth in major cities. But individual markets and properties within markets have experienced significant price falls in the past. Past growth rates are not guarantees of future performance.
"The mortgage is cheaper than rent, so buying wins"
Comparing a mortgage repayment to rent ignores stamp duty, maintenance, rates, insurance, and the opportunity cost of the deposit. The full cost comparison is almost always higher than rent for the first several years of ownership.
Frequently asked questions
How long do you need to stay in a property for buying to make sense?
Most financial analyses suggest a minimum of 5 to 7 years in the same property for buying to typically break even against the transaction costs and upfront expenses. Shorter time frames often mean stamp duty and selling costs consume any price growth.
Does the First Home Buyer Grant change the analysis?
Government grants and stamp duty concessions reduce upfront costs meaningfully. For eligible first buyers, this improves the financial case for buying relative to the basic comparison. Check your state's current first home buyer concessions — they vary significantly by state and property price threshold.
What about rent-vesting?
Rent-vesting involves renting where you want to live and buying an investment property in a more affordable location. It attempts to get the tax benefits and capital growth of property ownership while maintaining lifestyle flexibility. It introduces additional complexity, including landlord responsibilities and investment property tax treatment.
Compare renting and buying over your specific time frame with the Rent vs Buy Calculator. Estimate upfront stamp duty by state with the Stamp Duty Calculator.