The 50% CGT Discount Is Useless for Day Traders. Here's Why

General information about tax rules, not tax or legal advice. Rules change and every situation is different: check with a qualified adviser in your country before you file.

You opened an MNQ position at 9:42 in the morning and closed it at 10:05. Twenty three minutes. Somewhere along the way you read that Australia gives you a 50% discount on capital gains, and a small part of your brain filed that away as "so I only pay tax on half of it". Kill that thought now, because it is going to cost you money in a tax return one day.

The 50% CGT discount has one hard entry condition, and intraday trading fails it by design. Worse, for most people who trade futures with any seriousness, the discount is not even the right question: their profits never touch the capital gains system at all. This article walks through both problems, in that order, and then through what actually applies to you instead.

What the 50% discount actually asks of you

The ATO is blunt about the conditions. To apply the discount to a capital gain you have to be an Australian resident for tax purposes, and you have to have owned the asset for at least 12 months. Not eleven months and three weeks. Twelve.

The counting method matters too, and it is stricter than people assume. The ATO's own wording: "You exclude the day of acquisition and the day of the CGT event when working out if you owned the CGT asset for at least 12 months." So buying on 1 July and selling on 30 June the following year does not get you there. You need to be on the other side of that date.

There is a second layer of detail that catches people out. When you sell under a contract, the CGT event happens on the date of the contract, not on settlement. That is a useful rule if you are selling a house in June and want the gain to land in a particular financial year. It is completely irrelevant to somebody who is flat by lunchtime.

The discount also comes with a list of exclusions. Foreign and temporary residents do not get the full discount. Assets created by the CGT event itself do not qualify. And, in a line that should make any aggressive tax planner nervous, the ATO specifically lists income assets converted to capital assets in order to claim the discount as a situation where it does not apply. Companies never get the discount at all, at any holding period. Individuals and trusts get 50%; complying super funds get a third.

You can read the conditions yourself at the ATO's CGT discount page. It is short. That is the point: there is no clever reading of it that shrinks the twelve months.

Why an intraday position can never get there

Run the arithmetic on a normal week. You take four MES trades a day, maybe eight on a payroll Friday. Average hold: forty minutes. Longest position you have held all year: an overnight NQ swing that lasted nineteen hours and gave you heartburn.

Every one of those positions is opened and closed inside the same twelve month window. Every single one. There is no version of intraday trading, or swing trading on a two week horizon, or even position trading a quarterly contract, that clears the bar. A CME quarterly contract only lives about three months from listing to expiry for the front month you actually trade, and if you roll from the March contract to the June contract you have not held one asset for longer, you have disposed of one and acquired another.

That last point is the one traders argue with, so let it sink in. A roll is not a continuation. MNQZ25 and MNQH26 are different contracts. When you roll, the old position closes and a new one opens. Your "holding period" resets to zero. You could trade the same index continuously for five years and never own any single contract for twelve months.

So the practical answer to "how do I get the CGT discount on my futures trading" is: you do not, not while you are trading. The discount was built for people who buy CBA shares in 2019 and sell them in 2027. It rewards holding. Day trading is the opposite of holding.

The bigger problem: it is probably not a capital gain at all

Here is where the conversation usually goes quiet. Even if you somehow held a position for thirteen months, you might still not be in the CGT system, because the CGT rules are a residual. They apply to what the income rules do not already catch.

Australian income tax starts with ordinary income under section 6-5 of the ITAA 1997: the receipts that come to you from carrying on a business or from a profit making scheme. If your trading profits are ordinary income, they go straight into your assessable income at your marginal rate, and the CGT provisions, including the 50% discount, do not get a look in. Section 118-20 exists precisely to stop the same amount being taxed twice, and it reduces the capital gain to nil when the amount is already assessable as ordinary income.

The ATO's ruling on contracts for difference, TR 2005/15, works through this logic for a leveraged derivative that has no underlying asset you can point to. The reasoning it applies, whether the activity amounts to a business or a profit making undertaking, whether there is a commercial character to it, is the same reasoning an assessor will apply to an exchange traded futures account. Futures and CFDs are not identical instruments, but the character question is identical.

And there is a structural point that people miss. A futures contract is not a share. You do not buy an asset and hold it hoping it appreciates. You take on a contractual obligation, post a performance bond, and get marked to market every day. The whole thing is built to produce a running profit or loss, which is exactly the shape of income, not the shape of a capital asset.

Investor or trader: how the ATO decides

There is no election form. You do not tick a box saying "I am a trader". The ATO looks at what you actually did and applies a set of indicators drawn from decades of case law. The ones that do the heavy lifting:

• Repetition and regularity. Four hundred round turns a year looks like a business. Four looks like an investment.
• Intention to profit, and a plan to get there. A written strategy, defined risk per trade, a session you turn up to. This cuts both ways: your carefully documented trading plan is evidence against you if you wanted capital treatment.
• Business like organisation. Separate account, proper records, trade journal, a P&L you can produce on demand, subscriptions and tools bought specifically for the activity.
• Volume and turnover relative to your other income. Not decisive alone, but it colours everything else.
• Capital employed and the scale of the operation. Including whether you are running the activity from a dedicated setup.

Notice the trap. Everything that makes you a better trader, the journal, the plan, the routine, the risk rules, the platform and tooling, pushes you towards being in business. You cannot both operate professionally and argue to the ATO that this was a casual capital investment.

The ATO publishes its general framework for this at the capital gains tax section of its site, and the business tests are scattered across its business guidance. If you are near the line, this is a conversation for a registered tax agent, not for a forum thread.

What changes when you are on income account

Losing the discount sounds like pure downside. It is not. Income treatment is a trade: you give up a concession you were never going to qualify for, and you get a set of deductions and loss rules that are considerably more useful to somebody who trades for a living.

On income account:

• Profits are assessable in the year they arise, at your marginal rate plus the 2% Medicare levy.
• Losses are deductible against other assessable income, not quarantined in a capital loss bucket that can only ever offset future capital gains. This is the big one. A capital loss can sit unused for a decade. A business loss can reduce the tax on your salary in the same year.
• Expenses incurred in producing that income are deductible: platform licences, market data subscriptions, a VPS, indicator and toolkit purchases, commissions and exchange fees, the business use portion of your internet and your home office, brokerage account fees, your tax agent's bill.
• You may need to think about PAYG instalments once the ATO sees a profitable year, rather than one enormous bill in May.

The loss deduction has a gatekeeper, though. Division 35 of the ITAA 1997, the non-commercial loss rules, exists to stop people writing off hobby losses against their salary. It applies to individuals carrying on a business alone or in a partnership, and it imposes an income requirement plus a set of four tests, of which you generally need to satisfy one before the loss can be used in the current year. Otherwise the loss is deferred to a future year when the same activity makes money. The ATO publishes the current thresholds for the income requirement and for each of the four tests, and they are the kind of number you want to read on the day rather than take from an article. Check them on the ATO site before you plan around a loss year.

The numbers, so you can stop wondering

Rates first. These are the resident rates published by the ATO, excluding the 2% Medicare levy.

Taxable income	2025-26	2026-27
$0 to $18,200	Nil	Nil
$18,201 to $45,000	16c per $1 over $18,200	15c per $1 over $18,200
$45,001 to $135,000	$4,288 + 30c per $1 over $45,000	$4,020 + 30c per $1 over $45,000
$135,001 to $190,000	$31,288 + 37c per $1 over $135,000	$31,020 + 37c per $1 over $135,000
$190,001 and over	$51,638 + 45c per $1 over $190,000	$51,370 + 45c per $1 over $190,000

You can confirm the current year's figures on the ATO resident tax rates page, which is where these come from.

Now the comparison people actually want. Say you have $90,000 of salary and you made $30,000 trading over the year. Both the $90,000 and the trading profit sit in that 30c band for 2026-27, so the trading profit costs you $9,000 of income tax plus $600 of Medicare levy. That is the income account outcome, and it is the one you are most likely to be in.

Now imagine, hypothetically, that the same $30,000 had been a discountable capital gain. Half of it disappears, $15,000 goes into your return, and the tax is $4,500 plus $300 levy. You would be $4,800 better off. That gap is exactly why people go looking for a way to make day trading profits into capital gains, and exactly why it does not work: you cannot buy and sell inside a session and call the result a twelve month holding.

Flip it, though, and the income side wins. Lose $30,000 in a year on capital account and you carry a capital loss forward, useless against your salary, waiting for a capital gain that might never come. Lose it on income account with a genuine business and, subject to Division 35, that loss can reduce the tax on the salary in the same year.

What to do with this

Practical steps, in the order that saves you the most pain:

• Keep the records from day one. Trade by trade: date, instrument, contracts, entry, exit, commissions, exchange fees, realised result in AUD. Your broker statement is the source, but you want your own reconciled file, because a statement in USD is not a tax record in Australian dollars.
• Convert properly. A CME account is settled in USD. Your Australian return is in AUD. Decide your conversion method, apply it consistently, and document it. This is a real source of error, and it is the boring kind that costs money.
• Separate the money. One account for trading, one for everything else. It makes the business question easier to answer and the deductions easier to prove.
• Track deductible costs all year. Data feed, platform, indicators, VPS, hardware, the portion of your internet bill. If you are on income account, these are worth real money. If you only reconstruct them in October, half of them are gone.
• Ask the discount question once, properly, and then stop. Take your actual trade log to a registered tax agent, ask them whether your activity is on income or capital account, and get the answer in writing. That single conversation is worth more than every forum post you will ever read on the topic.

Stop optimising for a concession you cannot reach. The twelve month rule is not going to bend for you, and shaping your trading to chase it would mean holding leveraged positions for a year, which is a far more expensive idea than any tax you were trying to avoid. Leveraged futures can lose you more than the money you put in, and holding them for tax reasons rather than market reasons is how that happens.

The energy is better spent on the things that actually move the needle: your costs, your record keeping, your loss treatment, and whether your execution is good enough to be worth taxing in the first place.

This article is general information about how Australian tax rules work, not tax or legal advice, and the rules and thresholds change from year to year. Your own position depends on facts this article cannot know, so take it to a registered tax agent in Australia before you act on any of it.

cgt discount 12 months day trading australia

Educational content, not investment advice. Trading futures involves substantial risk of loss and is not suitable for every investor. Any reference to Algomyth results is hypothetical, simulated over historical data, and shown in full on the performance page; past performance does not guarantee future results.