Rent vs Buy Decision Guide
The mathematics and psychology of housing choices
The Short Answer
There's no universally correct answer. In expensive cities like Sydney, renting and investing can financially outperform buying in the short-to-medium term. Over 10+ years with average property growth, buying typically wins. But the "best" choice depends on your specific numbers, timeline, and life goals.
Use our Rent vs Buy Calculator to compare your actual numbers.
The 5% Rule Explained
The 5% rule is a quick way to compare the annual "unrecoverable" costs of owning versus renting. Multiply the property value by 5% to estimate your annual cost of ownership:
Breaking Down the 5%:
- ~3% Property costs: Council rates, insurance, maintenance, strata (if applicable)
- ~2% Opportunity cost: What your deposit could earn if invested elsewhere
Example: $750,000 property
5% × $750,000 = $37,500 per year unrecoverable costs
That's about $720 per week
If you can rent an equivalent property for less than $720/week, renting may be financially better (assuming you invest the savings).
The True Cost of Buying
Many first-time buyers underestimate the full cost of home ownership. Here's a realistic breakdown for a $750,000 property:
| Cost Category | Upfront | Annual |
|---|---|---|
| Deposit (20%) | $150,000 | - |
| Stamp duty (NSW) | $29,490 | - |
| Conveyancing, inspections | $3,000 | - |
| Mortgage interest (6.5% on $600K) | - | ~$38,000 (Year 1) |
| Council rates | - | $2,500 |
| Building insurance | - | $1,500 |
| Maintenance (1-2%) | - | $7,500-$15,000 |
| Strata fees (if apartment) | - | $3,000-$10,000 |
| TOTAL Year 1 | ~$182,500 | ~$50,000-$65,000 |
The True Cost of Renting
Renters avoid many costs but have their own expenses:
| Cost Category | Upfront | Annual |
|---|---|---|
| Bond (4 weeks rent @ $650/week) | $2,600 | - |
| Rent ($650/week) | - | $33,800 |
| Contents insurance | - | $500 |
| TOTAL Year 1 | ~$2,600 | ~$34,300 |
The "Rentvesting" Strategy
Rentvesting means renting where you want to live while buying an investment property where you can afford. This strategy lets you:
- Live in a desirable location you couldn't afford to buy in
- Build equity through an investment property
- Claim tax deductions on your investment (negative gearing)
- Maintain flexibility while building wealth
Rentvesting Example:
Sarah rents a $700/week apartment in inner Sydney. She buys a $500,000 investment property in Brisbane (5% rental yield = $480/week income). Her investment is cash-flow positive after tax deductions, and she's building equity while living where she wants.
When Buying Makes Sense
Buying is likely better when:
- ✓ Long time horizon: You plan to stay 7+ years in the same location
- ✓ Strong property market: Expected growth exceeds 4% per year
- ✓ Rent is high: Comparable rent costs more than 5% × property value
- ✓ Low deposit available: You can use First Home Guarantee (5% deposit, no LMI)
- ✓ Forced savings: You know you wouldn't invest the difference as a renter
- ✓ Lifestyle priority: Stability, renovations, pets are important to you
- ✓ Tax benefits: Negative gearing (for investors) or no CGT on primary residence
When Renting Makes Sense
Renting is likely better when:
- ✓ Short time horizon: You may relocate within 5 years
- ✓ Expensive market: Sydney/Melbourne where rent is low relative to prices
- ✓ Career flexibility: You might move cities for work opportunities
- ✓ Disciplined investor: You'll actually invest the cost savings
- ✓ Diversification: You want investments spread across asset classes
- ✓ Early career: Income likely to grow significantly
- ✓ Uncertainty: Relationship status, family plans, career path unclear
Real Scenario Comparison
Let's compare two people in Sydney with $150,000 saved:
Scenario A: Buy
- Buys $750,000 apartment (20% deposit)
- Stamp duty + costs: ~$32,000
- Mortgage: $600,000 @ 6.5%
- Monthly payments: $3,791
- + Rates, strata, maintenance: ~$1,000/month
- Total monthly: ~$4,800
Scenario B: Rent + Invest
- Rents similar apartment for $650/week
- Invests $150,000 in diversified ETFs
- Monthly rent: $2,815
- Invests difference: $1,985/month
- Total monthly: ~$4,800
- (Same total cost, but building liquid wealth)
After 10 Years (assuming 5% property growth, 7% investment returns):
Buyer's Position:
- Property value: ~$1,221,000
- Remaining mortgage: ~$465,000
- Net equity: ~$756,000
Renter's Position:
- Initial $150,000 grown to: ~$295,000
- Monthly investments grown to: ~$345,000
- Net wealth: ~$640,000
In this example, buying wins by ~$116,000 after 10 years. But the renter has a diversified, liquid portfolio with no property risk.
Break-Even Analysis
The break-even point is how long you need to own before buying beats renting. Key factors:
- Upfront costs: Higher stamp duty = longer break-even
- Property growth: Higher growth = shorter break-even
- Rent-to-price ratio: Higher rent = shorter break-even
- Interest rates: Higher rates = longer break-even
In Sydney/Melbourne, the break-even is typically 7-10 years. In cheaper cities (Brisbane, Adelaide), it can be 3-5 years.
Beyond the Numbers: Lifestyle Factors
Advantages of Owning
- Security of tenure—no eviction risk
- Freedom to renovate and personalize
- Pet-friendly (no landlord restrictions)
- Sense of community and belonging
- Psychological comfort of "owning"
- Forced savings through mortgage repayments
Advantages of Renting
- Flexibility to move for career or lifestyle
- No maintenance headaches
- Can afford better location for same money
- Lower financial stress
- Diversified investments (not all in property)
- Freedom from debt
Related Calculators
Making Your Decision
The rent vs buy decision is deeply personal. Ask yourself:
- How long will I live in this location? (5+ years favors buying)
- Am I disciplined enough to invest the savings from renting?
- How important is flexibility vs stability to me?
- What does home ownership mean to me emotionally?
- Can I afford to buy without excessive financial stress?
Run the numbers using our Rent vs Buy Calculator, but remember that the "optimal" financial choice isn't always the right life choice. Sometimes paying a premium for stability, security, or simply the joy of ownership is worth it.
IntuitiveCalc Team
This analysis uses simplified assumptions. Your actual returns will vary based on specific property, market conditions, and investment choices. Consider consulting a financial advisor for personalized advice.