In short: This calculator compares your net wealth after renting versus buying the same home for a set number of years, counting mortgage interest, ownership costs, rent, price growth and what a renter could earn by investing the deposit. The rule of thumb for Melbourne: buying usually pulls ahead after 7 to 10 years if prices grow around 4% a year or more; below that, renting and investing can match it.
- Home value after 10 years$1,036,171
- Equity built (value − loan)$534,057
- Interest + ownership costs paid$484,743
- Total rent paid$327,867
- Investment portfolio if renting$548,770
Highly sensitive to growth assumptions. Ownership costs assumed at 1.2% of value p.a. (rates, insurance, maintenance) rising 3% p.a.
Renting is ahead by: $171,589
That is a general estimate on standard assumptions. Every lender applies its own expense benchmarks, income shading and policy, so the real figure moves from lender to lender. Gorakh spent years as a senior credit officer deciding exactly these questions. Send him the numbers above and he will tell you what is realistic and which lenders fit — at no cost to you for home loans.
- A former senior credit officer reads itGorakh assessed loan applications on the lender side before he became a broker.
- A real office you can visit23 Astbury Crescent, Mickleham VIC 3064 · ABN 90 160 461 553
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Renting is not "dead money" and buying is not automatically a win; the answer depends on how long you stay and what prices do.
How this calculator works
The buyer's side
The calculator amortises your loan monthly at your rate, adds ownership costs (council rates, insurance, maintenance, owners corporation fees) and applies annual price growth to the property. At the end of the period it takes the property value, subtracts the remaining loan and selling costs, and reports the buyer's equity.
The renter's side
The renter pays rent that grows each year and invests the cash the buyer spent on the deposit and purchase costs, plus any monthly gap where owning costs more than renting, at the return rate you set. The renter's end position is the investment balance.
Assumptions
- Standard 30-year principal and interest loan; rate constant across the period.
- Ownership costs grow at 3% a year, rent grows at your chosen rate.
- Selling costs of 2.5% of the future price are deducted from the buyer.
How to use the result
Focus on the gap between the two end positions, not on either headline number. Then move one input at a time: price growth, years held, investment return and rent growth. If the winner flips with a one-point change in growth, lifestyle factors should carry the decision. Renters who want property exposure without buying where they live can also model rentvesting.
Worked example
A couple pays $550 a week for a three-bedroom rental in Craigieburn and could buy a similar home for $650,000 with a 20% deposit ($130,000) and a $520,000 loan. For illustration, at 6.00% p.a. the repayment is $3,118 a month. They compare seven years, with 3% rent growth, $10,000 a year in ownership costs, standard duty of $34,070 plus $2,500 legal costs, and a renter investment return of 4.50%.
| Item over 7 years | Buy | Rent |
|---|---|---|
| Monthly outlay in year one | $3,951 (repayment + costs) | $2,383 |
| Interest paid | $208,008 | – |
| Rent paid | – | $219,146 |
| Ownership costs | $76,625 | – |
| Property value at 4% growth | $855,356 | – |
| Loan remaining | $466,125 | – |
| Renter's investment balance | – | $368,990 |
| End position after selling costs | $367,847 | $368,990 |
At 4% annual growth the two are within $1,200 of each other, effectively a draw. At 5% growth the buyer is ahead by about $56,600; at 3% the renter is ahead by about $55,700. Stretching the holding period to 10 years at 4% growth puts the buyer ahead by roughly $36,300. A first home buyer paying the concessional duty of $11,357 instead of $34,070 starts about $22,700 better off, which tilts the result toward buying.
What this calculator doesn't include
- Rate movements; a lower rate later helps the buyer, a higher one helps the renter.
- Tax on the renter's investment earnings, which lowers the renter's real result.
- Renovation value added or the cost of moving between rentals every few years.
- The security and control of owning, which many households value above the spreadsheet result.
Tips to improve the outcome
- Reduce upfront costs by checking stamp duty exemptions and concessions and grants you qualify for.
- If you rent, actually invest the difference; the renter only wins if the money is put to work.
- Use the Help to Buy shared equity scheme or the First Home Guarantee to enter with a smaller deposit if eligible.
- Run the upfront costs calculator so your deposit figure is complete.
Frequently asked questions
Is it cheaper to rent or buy in Melbourne?
Month to month, renting is usually cheaper. In our Craigieburn example the renter pays $2,383 a month against $3,951 for the buyer including ownership costs. Over seven years the positions converge because the buyer builds equity and the property grows, while the renter's advantage relies on investing the gap. Growth of around 4% a year makes it a draw; higher growth favours buying.
How many years do you need to own to beat renting?
Typically 7 to 10 years in Melbourne. Purchase costs and selling costs of roughly 5 to 8% combined must be recovered through price growth and principal repayment before buying beats renting. If you expect to move within three or four years, renting is usually the better financial choice.
Does renting really waste money?
No. Rent buys housing, just as mortgage interest, rates, insurance and maintenance do for an owner. In year one of a $520,000 loan at 6.00%, about $31,000 of the buyer's $37,400 in repayments is interest. What separates the two long term is equity growth, which is why holding period and price growth decide the outcome.
What is rentvesting and does the calculator cover it?
Rentvesting means renting where you want to live and buying an investment property elsewhere. It is a middle path that can suit people whose work or lifestyle needs an expensive suburb. Run this calculator for the home you would live in, then use the investment property cashflow calculator for the property you would buy.
Talk to GNT Finance
If the result says buying stacks up, the next step is knowing exactly what you can borrow and which schemes shave your entry costs. GNT Finance helps Melbourne renters become owners with first home buyer loans, pre-approval and scheme checks, at no cost to you for our home-loan service in most cases. Book a free consultation or phone 0426 403 703.
Written by Gorakh Timilsina
Founder, CEO & Senior Mortgage Consultant at GNT Finance. Gorakh started as a broker assistant, spent years as a senior credit officer assessing loan applications, and now helps Melbourne families get the right loan approved. English, Nepali and Hindi spoken.