Capital gains tax calculator for AustraliaYour broker history, finished.
Upload exports from CommSec, Stake, SelfWealth or any other broker. FiscalFox matches every sale to the parcels it used, applies the 50% discount and your losses in the right order, and gives you the item 18 figures with the workings behind them.
Free to use. No card needed.
FiscalFox Australia calculation preview
Capital Gains Summary2025-26Item 18 figures
Capital gains summary for the 2025-26 income year, in AUD
Item 18A, after losses and the 50% discount
CGT discount
On gains from shares held 12 months or more
Cumulative gains over time
Gains/losses by asset
Built for the histories that end up in a spreadsheet
A single broker's tax report is fine until your shares have moved, been reinvested or sit in more than one account. These are the cases FiscalFox is designed to finish.
Every sale matched to its parcels
Each purchase is its own parcel. FiscalFox works out which parcels every sale used, applies the 50% discount to the ones held 12 months or more, and shows the cost, proceeds and gain for each.
| Parcel bought | Cost A$ | Proceeds A$ | Gain A$ |
|---|---|---|---|
| 10 Jan 2022Over 12 months: 50% discount | 2,000 | 5,000 | 3,000 |
| 15 Jan 2025Under 12 months: no discount | 1,900 | 2,500 | 600 |
Every broker and account in one calculation
Upload exports from all your brokers together. Each parcel stays in the account it was bought in. When a sale has no parcel in its account, usually because shares moved between brokers, FiscalFox asks instead of guessing.
CommSec
100 bought 10 Jan 2022
150 sold on 1 Sep 2025
Stake
100 bought 1 May 2021
50 of the units sold aren't held at CommSec, but are held at Stake.
Were they transferred between brokers? Add the transfer, or choose the parcels this sale used.
ETF statements applied year by year
AMIT funds report cost base amounts on their AMMA statements. Allocate them to each parcel’s sold and retained units, including the sale year; FiscalFox identifies the missing amounts.
- 100 VAS bought 1 Aug 2023
- 9,000.00
- 2023-24 AMMA net amount, +A$0.40 a unit
- +40.00
- 2024-25 AMMA net amount, -A$1.40 a unit
- -140.00
- Cost base at sale
- A$8,900.00
The figures for your tax return
Get item 18 of your return, with losses applied before the discount and any losses to carry forward. Download the workings behind every figure for your records or your tax agent.
- 18H
- Total current year capital gains
- A$18,356
- 18A
- Net capital gain
- A$7,950
- 18V
- Net capital losses carried forward
- A$0
Works with your broker's export
Upload the CSV or Excel trade history from any broker. FiscalFox recognises its columns, then reads every row with its own code.
CommSec
Stake
SelfWealth
CMC Invest
Pearler
Superhero
nabtrade
Bell Direct
Interactive Brokers
Saxo
Vanguard Personal Investor
Betashares Direct
eToro
To recognise the columns, up to 65 rows of an export are sent to our AI provider, Anthropic. The calculation itself runs on FiscalFox. Read the privacy policy.
Built for Australian tax
The 12-month discount, parcel by parcel
Checked for every parcel, including each dividend reinvestment, counting neither the day you bought nor the day you sold.
Losses in the order the ATO sets
This year's losses, then earlier years' net capital losses, come off your gains before the 50% discount, starting with gains that don't qualify for it.
AUD at Reserve Bank rates
Shares bought in US dollars are converted on the purchase date and the sale date separately, with each rate and its source recorded.
Every holding gets a 30 June 2027 value
From 1 July 2027 the 50% discount ends for gains made after that date. Shares you hold through 30 June 2027 are treated as sold at their market value just before 1 July and bought straight back. The gain on that sale waits until you really sell, and the value becomes each holding's new cost base, so it needs recording for every parcel.
FiscalFox records the value for every parcel you hold, and shows what you hold today with each parcel's cost base so you can fill gaps before the date. Sales up to 30 June 2027 use the current rules; from 2027-28 it applies the new ones, including indexation and the 30% minimum tax. Treasury Laws Amendment (Tax Reform No. 1) Act 2026
See your 2027 valuationThe rules FiscalFox applies
Short answers, each linked to the ATO guidance it comes from. Sources checked 14 October 2026.
- When do I get the 50% discount?
- When you held the shares for at least 12 months, not counting the day you bought or sold them. Bought on 2 February 2025, the discount applies to a sale on or after 3 February 2026. ATO source
- Which shares did I sell?
- Each purchase is a separate parcel. If your records show which parcel you sold, use it. Otherwise the ATO accepts your own selection, or first in, first out. Average cost is only allowed in narrow cases. ATO source
- When are losses applied?
- Capital losses this year, then net capital losses from earlier years, are taken off your gains before the 50% discount. ATO source
- How do ETF statements change my cost base?
- A fund's AMMA statement gives a cost base net amount each year. An increase raises your cost base and a decrease lowers it; a decrease beyond your cost base is a capital gain. ATO source
Free to use, with no card required
FiscalFox Australia is free for Australian resident individual investors with company shares and AMIT fund units held personally outside super. Upload your broker history, check every sale and download your workings. Anything you calculate now stays free.
FiscalFox is not a registered tax agent and does not give tax advice. These workings come from the records you supplied and the choices you confirmed. For advice on your circumstances, ask a registered tax agent. The figures are for your tax records, not a recommendation to buy, sell or hold any investment.
Australian share and ETF tax guides
Find the records and rules behind your calculation, with official sources and worked examples.
Capital gains tax on shares in Australia
How Australian residents work out capital gains on shares and ETFs: parcels, the 50% discount, losses, foreign shares in AUD and item 18 of your return.
The 30 June 2027 share valuation
What the 2027 capital gains changes mean for shares and ETFs you hold: the deemed sale on 30 June 2027, deferral to your real sale, the discount and your new cost base.
ETF AMMA statements and your cost base
Why most Australian ETFs change your cost base every year, the capital gains they pass on to your return, and when a cost base decrease becomes a capital gain.
The 50% CGT discount and the 12-month rule
Check the 50% CGT discount for Australian resident individuals, including exact eligible dates, capital losses and the change from 1 July 2027.
Capital losses on shares: offsets and carry-forward
Apply Australian share capital losses before the CGT discount, use prior-year losses and understand the amount carried forward to your next return.
Share parcel selection in Australia: FIFO and records
Identify which Australian share parcels you sold, compare FIFO with specific parcel selection and keep evidence for dates, cost bases and transfers.
US and foreign shares: calculating CGT in AUD
Calculate Australian CGT on US and other foreign shares using separate AUD purchase and sale values, dated FX evidence and brokerage records.
myTax capital gains: item 18, AMMA and your return
Use Australian CGT workings in myTax: total gains at 18H, net capital gain at 18A, losses at 18V and fund distributions without double counting.