Capital Growth Calculator Australia 2026
Project future property values and estimate capital gains tax
Free calculator with inflation adjustment and state-specific growth rates. No email required. Instant results.
Updated for the enacted 2026 NG / CGT reforms
The exit CGT estimate applies the enacted 2027 transition: growth to the 30 June 2027 deemed-sale value keeps the 50% discount, later growth is taxed on the CPI-indexed gain with the 30% minimum, and eligible new dwellings keep the discount throughout. The purchase date does not change the CGT method. The reforms were enacted in June 2026 and commence 1 July 2027. The 7:30pm AEST 12 May 2026 acquisition cut-off governs negative gearing; the CGT transition applies to every qualifying asset through a deemed sale at market value on 30 June 2027, regardless of purchase date. Outputs are estimates only. Always consult a registered tax agent. Read the full reform guide →
Property Details
Holding period: 0 years
Suggestions are conservative long-run planning assumptions, not last year's growth — edit the rate below to model your own view.
Growth Assumptions
Long-run average: 6-8% nationally. Past 12 months (Jun 2026): Perth +23.9%, Brisbane +17.4%, Adelaide +11.6%, Sydney +0.3%, Melbourne -0.9% — cyclical extremes in both directions, which is why projections should use a long-run rate.
Adjust for purchasing power to see real vs nominal gains
RBA target: 2-3%. Use 2.5% as long-term average
Tax Information (for CGT)
CGT discount: 50% off capital gain if held 12+ months
Budget 2026 Reform (for CGT)
When Did You Buy? (2026 reforms)
Purchase date determines negative gearing. Established dwellings contracted before 7:30pm 12 May 2026 keep full negative gearing; later ones have losses quarantined from 1 July 2027. It does not determine CGT: every individually held asset is deemed sold at market value on 30 June 2027, the gain to that date keeps the 50% discount, and later growth is taxed on the CPI-indexed gain with a 30% minimum. Models the enacted Treasury Laws Amendment (Tax Reform No. 1) Act 2026. Administrative detail (ATO valuation guidance, the apportioning-method instrument, the new-dwelling definition) is still being finalised.
Date you signed (or will sign) the purchase contract. Pre-12 May 2026 = negative gearing grandfathered.
New builds keep full negative gearing and the 50% CGT discount on later growth (definition pending).
Note: Capital growth projections are estimates based on your assumptions. Actual property values depend on market conditions, location, property quality, and economic factors. The Budget 2026 CGT reform modelled above was legislated in June 2026 (new CGT regime applies to post-12 May 2026 acquisitions disposed of from 1 July 2027). Past performance does not guarantee future results.
Enter property details to project capital growth.
How the Calculator Works
Enter Property Details
Provide current value, purchase year, and assumed annual growth rate (or select state for suggestions).
Project Future Values
We calculate year-by-year property values using compound growth formula over your chosen timeframe.
Analyze Growth & CGT
See projected values, CGT estimate (with 50% discount if held 12+ months), and inflation-adjusted returns.
Comprehensive Growth Projection (2026)
- Compound Growth Calculations: Year-by-year projections over 5-30 year periods
- State-Specific Growth Rates: Suggested long-run planning rates by state (5.0% to 7.0% p.a.), not trailing growth. For context, the 12 months to September 2026 on Cotality's index: Darwin +11.9%, Perth +10.1%, Hobart +7.0%, Adelaide +6.5%, Brisbane +5.9%, Canberra −1.6%, Melbourne −6.2%, Sydney −7.0%
- Inflation Adjustment: See real (purchasing power) vs nominal values with customizable inflation rate
- CGT Estimate: Calculates capital gains tax with 50% discount for 12+ month holdings at your marginal rate
- Growth Milestones: See property values at 5, 10, 15, 20, 25, 30 year intervals
- Investment Insights: Rule of 72, doubling time, real wealth creation analysis
Calculator FAQs
How do you calculate capital growth?▼
Capital growth is calculated using compound growth formula: Future Value = Present Value × (1 + growth rate)^years. For example, a $750K property growing at 7% annually becomes $1.48M in 10 years. This calculator projects year-by-year values and estimates CGT on sale.
What is a realistic growth rate for Australian property?▼
Historic long-term average is 6-8% annually nationwide. However, rates vary significantly by location and market cycle. Over the 12 months to September 2026 (Cotality Home Value Index), capital-city dwelling values ranged from Darwin +11.9% and Perth +10.1% through Hobart +7.0%, Adelaide +6.5% and Brisbane +5.9% to Canberra −1.6%, Melbourne −6.2% and Sydney −7.0%. Use conservative estimates (5-7%) for long-term planning.
What is the 50% CGT discount?▼
Australian residents who hold an investment property for at least 12 months receive a 50% discount on the capital gain before tax is calculated: a $300K gain becomes a $150K taxable gain, taxed at your marginal rate (e.g. 30% = $45,000). Under the enacted Tax Reform No. 1 Act 2026 the discount continues on growth accrued to 30 June 2027 whenever you sell; growth after 1 July 2027 is taxed on the CPI-indexed gain with a 30% minimum tax, except for eligible new residential dwellings, which keep the 50% discount.
Should I use nominal or real (inflation-adjusted) values?▼
Both are useful. Nominal values show actual dollar amounts you'll receive. Real values adjust for inflation to show purchasing power. A property worth $1.5M in 10 years might only have $1.2M purchasing power in today's dollars (at 2.5% inflation). Real values show true wealth creation.
How accurate are capital growth projections?▼
Projections are estimates based on assumptions. Property markets are cyclical - growth rates fluctuate year-to-year. Use conservative rates, consider multiple scenarios, and focus on properties with strong fundamentals (infrastructure, population growth, employment, scarcity) rather than relying solely on historic averages.
What drives capital growth in property?▼
Key drivers: (1) Supply vs demand (scarcity), (2) Population growth and migration, (3) Infrastructure investment (transport, schools, hospitals), (4) Employment growth and wages, (5) Interest rates and credit availability, (6) Economic conditions, (7) Location desirability. Properties with multiple growth drivers typically outperform.
Ready to optimize your property investment strategy?
Our property investment advisors can help you structure investments for tax efficiency and long-term wealth building.
Next Steps After Projecting Capital Growth
Sell or Hold Planner
Growth after 30 June 2027 loses the 50% CGT discount for most investors. Take the projection above into a sell-before versus hold comparison, for one property or the whole portfolio.
Rental Yield Calculator
Calculate gross and net rental yields. Balance capital growth projections with rental income returns.
Investment Property Cash Flow Calculator
Calculate monthly cash flow and negative gearing tax benefits for rental properties.
Stamp Duty Calculator Australia
Calculate upfront property purchase costs including stamp duty across all Australian states.
Property Investment Guides
Read our comprehensive guides on capital growth strategies, market analysis, and location selection.