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ASX Share Portfolios

New CGT Rules for
Australian Share Investors

The 50% CGT discount is gone for new share positions from 1 July 2027. Your portfolio's era of purchase determines which tax rules apply.

▶ Watch the video explainer →

The Three Eras of Share Portfolios

1

Pre-1985 (Pre-CGT)

Exemption Ending

Assets held since before 20 Sept 1985 lose their 42-year CGT exemption. Cost bases reset via ATO market valuation on 1 July 2027.

2

Grandfathered Shares

Hybrid Rules

Shares bought before 1 July 2027. Old 50% discount applies to gains up to June 2027. New CPI indexation applies to gains after that date.

3

Post-July 2027 Buys

Pure Indexation

Zero 50% discount. Gains adjusted for CPI inflation only. Hard 30% minimum tax floor on all net capital gains.

Note: Margin lending interest deductions remain fully deductible against ordinary income under all pathways.

Side-by-Side: $100,000 Profit on a Share Sale

Old System — 50% Discount
Total Profit$100,000
50% Discount−$50,000
Taxable Gain$50,000
Tax Bill (30% bracket) $15,000
New System — CPI Indexation + 30% Floor
Total Profit$100,000
CPI Adjustment (e.g. 10%)−$10,000
Taxable Real Gain$90,000
Tax Bill (30% floor) $27,000
+$12,000 more tax for the same market gain

The Strategic Shift — Franked Dividend Yield

Growth Stocks Lose Appeal

With the 30% minimum floor, high-growth compounders become far less attractive. The asymmetric tax benefit of patient long-term capital is eliminated.

Capital Moving Out

Franked Dividends Rule Supreme

Cash dividend streams are untouched by these changes. Australian franked dividends averaging 4% yield with 100% franking credits remain highly tax-effective and bypass CGT entirely.

Capital Rotating In

Market context: ASX blue chips average 4% yield vs 1.1% on the US S&P 500.

Calculator →

Compare your CGT bill old vs new rules

Debates →

Will indexation stifle Australian startups?

Fact Checks →

Is the 50% discount really gone for everyone?