Old rules50% discount
- Taxable capital gain
- $374,026
- Estimated tax on sale
- $138,390
- Dividend tax paid
- $184,520
- Total tax
- $322,909
- Tax / total profit
- 25.9%
Simple CGT projection
Compare old and new capital gains tax rules
Model eligible shares or ETF units held personally by an Australian-resident individual from 1 July 2027. Compare the current 50% discount with estimated CPI indexation and an illustrative 30% minimum-tax floor.
Projection, not tax adviceFor resident individuals who are not temporary residents. Excludes companies, super funds, capital losses, Medicare levy, franking and specialist concessions.
Each possible sale year
Tax over time
Old rulesNew rulesHover, tap or use arrow keys to select a sale year.
Sale after 30 complete years
Projected comparison
Portfolio value$1,162,234
- Price appreciation
- $748,052
- Gross dividends
- $498,701
- After-tax dividends reinvested
- $314,182
- Nominal cost base
- $414,182
- Estimated CPI-adjusted cost base
- $608,468
- Total pre-tax profit
- $1,246,753
New-rules estimateCPI + 30% proxy
- Real taxable capital gain
- $553,766
- Estimated tax on sale
- $204,893
- 30% proxy top-up
- $0
- Dividend tax paid
- $184,520
- Total tax
- $389,413
- Tax / total profit
- 31.2%
New rules estimate$66,504 more20.6% more than old rules
What this model does
A deliberately simplified projection
This calculator projects price growth, taxed unfranked dividends and year-end reinvestment, then compares the current 50% CGT discount with estimated CPI indexation and a 30% minimum-tax proxy.
It is a simplified estimate based on Act No. 49 of 2026, Act No. 50 of 2026, and the official Budget explainer; see the methodology and sources for assumptions and limitations.