Capital Gains Tax on Australian Shares and ETFs Before EOFY 2026: Parcels, DRPs and Tax-Loss Harvesting

Why EOFY 2026 matters for investors

A lot of Australian investors leave CGT decisions too late.

They know 30 June matters, but they do not always know which shares are being sold, whether the 12-month discount applies, how dividend reinvestment changes the cost base, or whether an ETF tax statement contains an adjustment that will affect the final number.

This year, timing matters even more. The RBA cash rate sits at 4.10% after the March 2026 increase, the ABS says annual CPI inflation rose to 4.6% in the year to March 2026, and markets have been swinging sharply as investors reprice growth, rates and global risk. Volatility often creates both gains and losses in the same portfolio, which makes EOFY 2026 a very practical moment to review your CGT position.

This guide covers how capital gains tax works for Australian shares and ETFs, where investors make avoidable mistakes, and what to check before selling anything.

Start with the ATO rules, not your broker app

Broker platforms are good at showing portfolio performance. They are not always good at showing the exact tax result.

The ATO’s framework is what matters. In simple terms:

1. Work out your capital proceeds.
2. Work out your cost base.
3. Calculate the gain or loss for each disposal.
4. Offset capital losses.
5. Apply any available CGT discount.

For Australian resident individuals, the main discount is 50% on eligible capital gains for assets held at least 12 months.

That sounds simple, but the complexity appears when you have:

• multiple parcels bought at different prices
• brokerage on entry and exit
• dividend reinvestment plan parcels
• ETF annual tax statement adjustments
• prior-year capital losses
• family members holding similar investments in different names

The difference between a capital gain and a capital loss

If you sell for more than your cost base, you have a capital gain.

If you sell for less than your reduced cost base, you have a capital loss.

Capital losses are useful, but only against capital gains. They do not reduce wages, salary, rental income or bank interest.

That means an investor on a $190,000 salary who realises a $20,000 capital loss does not get a $20,000 deduction against salary income. Instead, the loss sits against capital gains, either this year or later.

What goes into your cost base

This is where many investors understate or overstate CGT.

Your cost base usually includes:

• the purchase price
• brokerage on the buy
• brokerage on the sale
• certain other costs of acquiring and disposing of the asset

For many retail investors, the big missing items are brokerage and AMIT cost base adjustments on ETFs.

A simple share example

Suppose you bought 1,000 ASX shares at $12.00 each and paid $19.95 brokerage.

• Purchase cost: $12,000.00
• Brokerage on buy: $19.95
• Initial cost base: $12,019.95

If you later sell them for $15.00 each and pay $19.95 brokerage again:

• Sale proceeds: $15,000.00
• Less brokerage on sale: effectively included in calculation
• Capital gain: $15,000.00 less $12,039.90 = $2,960.10

If you held the parcel longer than 12 months and had no capital losses, an Australian resident individual may only include 50% of that gain, or $1,480.05, in net capital gain calculations.

Parcel selection matters more than most people think

If you bought the same stock on several dates, you do not have to assume the first shares bought are the first shares sold. The important thing is that your records support which parcel you disposed of.

Example with three parcels

If the current market price is $12.80 and you want to sell 500 units, the tax outcome differs sharply depending on which parcel you nominate.

• Sell Parcel A, you crystallise a gain that is discount-eligible.
• Sell Parcel B, you crystallise a smaller discount-eligible gain.
• Sell Parcel C, you crystallise a capital loss, but no discount is needed because there is no gain.

That choice can change your tax result by thousands of dollars.

The 12-month CGT discount trap

The ATO’s 50% discount is powerful, but investors often misread the timing.

The rule is not based on calendar years or tax years. It is based on whether you held the asset for at least 12 months before the CGT event.

Selling on 28 June 2026 a parcel bought on 5 July 2025 may not satisfy the full 12-month period. Waiting a few more days could materially change the tax result.

Quick illustration

For someone on a 39% marginal tax rate including Medicare levy, that difference could mean about $3,510 in extra tax.

Why ETFs need extra care

ETFs look simple because you buy and sell one code. Tax-wise, they can be more fiddly than direct shares.

That is because annual tax statements may include components such as:

• capital gains distributed by the fund
• foreign income
• franking credits
• tax-deferred amounts
• AMIT cost base net increases or decreases

If you ignore those annual adjustments, the cost base you use when you eventually sell the ETF may be wrong.

AMIT adjustments in plain English

Many Australian ETFs issue annual tax statements that tell you to increase or decrease your cost base. Those adjustments can feel minor, maybe $42 here, $110 there, but over five or ten years they add up.

If your cost base is understated, you can overpay tax. If it is overstated, you risk an ATO amendment later.

DRPs create lots of mini parcels

Dividend reinvestment plans are great for compounding, but they create admin.

Each time a dividend is reinvested:

• the dividend is generally still assessable income
• the new units have their own acquisition date
• the new units have their own cost base

If you have been in a DRP for six years, you might have dozens of tiny parcels. Some will qualify for the 12-month discount, some may not, depending on the sale date.

Example of why DRPs get messy

Suppose you hold an ETF and receive four quarterly reinvestments in a year:

If you sell the whole holding in June 2026, the May 2026 DRP units clearly do not satisfy the 12-month rule. The older ones may eventually qualify, but not yet.

Capital losses, tax-loss harvesting and the Australian rules

Tax-loss harvesting is the process of realising losses to offset gains. Done properly, it can be sensible. Done carelessly, it becomes fake discipline where tax drives the investment decision.

When it can make sense

• you have realised gains elsewhere this year
• the original investment thesis has changed
• you want to reallocate to a stronger asset mix
• you have reliable records of the parcel sold

When it can be weak strategy

• you are selling a good long-term holding only for tax optics
• you intend to buy back almost immediately without an investment reason
• you have not checked whether waiting for the 12-month discount is better

Australia does not have a simple US-style wash sale rule written as a fixed-day test, but the ATO can still attack arrangements where the dominant purpose is obtaining a tax benefit without a genuine change in economic position. If you sell and buy back the same stock in a cosmetic loop, get advice first.

Shares versus share trading, why it matters

The ATO distinguishes between investing and carrying on a business of share trading.

For most retail Australians, ASX holdings are capital assets and the CGT regime applies.

If you are genuinely running a share trading business, different tax treatment can apply, including revenue treatment and potentially deductibility of losses. Most people should not assume they are traders just because they bought and sold often during a volatile year.

A practical EOFY review process

Step 1, build a disposal list

List every sale you have already made in 2025-26.

Step 2, collect prior-year losses

Find the capital loss balance carried forward from your last lodged return.

Step 3, review unsold losers and winners

Look at positions with unrealised losses and positions close to the 12-month line.

Step 4, check tax statements for ETFs and managed products

Do not rely only on broker export files.

Step 5, choose parcels deliberately

For any sale, decide which parcel gives the best after-tax outcome and keep records proving it.

Worked EOFY example

Emma has the following in 2025-26:

• $24,000 capital gain on ASX shares held for more than 12 months
• $8,000 capital gain on an ETF parcel held for less than 12 months
• $11,000 unrealised loss on another share parcel
• $6,000 carried-forward capital losses from prior years

If Emma sells the loss parcel before 30 June:

1. Current-year gains = $32,000
2. Less current-year capital loss = $11,000
3. Remaining gains = $21,000
4. Less carried-forward capital loss = $6,000
5. Remaining gains = $15,000
6. Apply 50% discount only to the eligible discounted gain component

Assume the whole $24,000 share gain was discount-eligible and the $8,000 ETF gain was not.

• Discountable gain after applying losses strategically: say $7,000
• Non-discountable gain after losses: $8,000
• Discount on $7,000 = $3,500 taxable
• Total net capital gain = $11,500

Without selling the loss parcel, Emma’s net capital gain could be much higher. That is the difference between tactical tax planning and passive hope.

Common mistakes Australian investors make

Forgetting AMIT adjustments

This is one of the most common ETF record-keeping problems.

Ignoring brokerage

Small amounts matter across multiple parcels.

Selling before the 12-month point

A few days can change the outcome materially.

Losing track of gifted or inherited shares

The cost base rules can differ from a standard purchase.

Assuming all investment apps are tax accurate

They are often helpful, but they are not your tax return.

What to have ready for your accountant

Before EOFY, gather:

• CHESS or broker transaction reports
• buy and sell contract notes
• ETF annual tax statements
• DRP statements
• prior-year tax returns showing carried-forward losses
• notes showing which parcel was sold where multiple parcels exist

If you can hand your accountant a clean spreadsheet before 30 June instead of a panic bundle in August, the quality of advice improves straight away.

When not to sell purely for tax reasons

Tax should inform the decision, not dominate it.

A weak tax move

Selling a strong long-term holding on 28 June only to buy it back on 2 July, with no real portfolio reason, can leave you with transaction costs, market timing risk and possible ATO scrutiny.

A stronger tax move

Selling because the original thesis is broken, the position size is too large, or the capital loss genuinely helps offset gains as part of a broader rebalance is much easier to defend and often makes better investment sense.

A quick pre-30 June investor checklist

Use this as a final filter before placing an order:

• Have I identified the exact parcel being sold?
• Does the 12-month discount apply to that parcel?
• Have I updated the cost base for brokerage, DRPs and ETF annual statement adjustments?
• Do I already have carried-forward capital losses available?
• Is this trade being made for a real portfolio reason, not only a cosmetic tax outcome?

The bottom line

Capital gains tax on shares and ETFs in Australia is manageable, but only if you keep proper records and make sale decisions deliberately.

At EOFY 2026, the big levers are not complicated:

• identify the exact parcel sold
• check whether the 12-month discount applies
• include brokerage and cost base adjustments
• use capital losses carefully
• be cautious with cosmetic buy-back strategies

A smart CGT outcome is usually built from detail, not guesswork.

If you want help reviewing parcels, ETF statements or carried-forward losses before 30 June, find an accountant on WealthWorks and get the numbers checked before you place the trade.