Australia · 30 June 2027 cutover

Calculator runs locally. When you're ready for independent evidence (an HtAG valuation model, comparable sales, a dated PDF for your accountant), the $39 report picks up where this leaves off.

Free 2027 CGT calculator

Cost base from published duty tables, break-even in defended dollars, and a provisional check against any free estimate you paste in. Runs on our own arithmetic — no account, no email, no external calls to run it.

Property address (optional)

State or territory

Contract date (month & year)

Day is optional. Leave it blank and the result shows the month and year only.

Purchase price

Conveyancing, inspections and registration(standard assumption)

I used a buyer's agent

Capital improvements since purchase (optional)

Renovations, extensions, major works — your estimate of total cost. If you claimed capital works deductions on any of these, your cost base may be lower (check with your tax agent).

Significant renovations or extensions since purchase?Ticking this changes how we present the result — models and comparable sales can't see what you've built.

Your current estimate(optional)

Paste any free estimate (realestate.com.au, Domain, your bank's app) — or your own honest guess.

This calculator does not call any external property-data service. Duty tables are local. Your inputs stay in your browser unless you choose to email yourself the results.

Fill in the required fields

State, contract date and purchase price are enough to compute your cost base. Everything else refines it.

Decision aid only — not a valuation or tax advice

This calculator is a decision aid. It does not produce a valuation and does not constitute tax, financial or legal advice. Duty figures are indicative and derived from published state and territory rate tables current for the contract date you enter. Always consult a registered tax agent before acting.