CGT calculator

Estimate the tax on selling an ETF. Sales from 1 July 2027 show both the current 50% discount and the new rules: indexation plus a 30% minimum tax on gains after that date.

Your sale

Bought for

Bought on

Sold for

Sold on

Value on 1 July 2027

What the holding was worth that day. Gains up to here keep the 50% discount.Your tax rate

Inflation a year

Estimated tax under the new rules$11,034About $1,434 more than the current rules

Total gain: $60,000
Gain before 1 July 2027: $30,000
Taxable after the 50% discount: $15,000
Gain after 1 July 2027: $30,000
Cost base indexed for inflation: $90,517
Real gain taxed: $19,483
Tax under the current rules: $9,600

Effective tax on the whole gain: 18.4%.

How it works: gains built up before 1 July 2027 keep the 50% discount. Gains after it are taxed on the amount above inflation, at your tax rate or 30%, whichever is higher. Indexation uses your inflation assumption; the ATO will confirm the official index and how the 1 July 2027 value is set. Brokerage counts in your cost and sale amounts.

General information only, not financial advice. These figures are estimates from the numbers you enter and the data shown. They don’t consider your personal circumstances. Check with the ATO, the fund’s own documents or a licensed adviser before acting on them.