How to Buy Shares in Australia and Build a Tax-Efficient ETF Portfolio

How to Buy Shares in Australia and Build a Tax-Efficient ETF Portfolio

Investing in the Australian share market has become increasingly accessible, but accessibility doesn’t automatically translate to clarity. Between choosing a broker, understanding how ETFs work, and navigating the tax implications of every decision you make, there’s a significant amount to understand, and the process can be costly if investors don’t understand the fees and tax rules involved(MoneySmart.gov, 2026).

What follows is a practical breakdown of how Australian investors can enter the share market, construct a low-cost ETF portfolio, and structure their investments in a way that minimises unnecessary tax drag over the long term.

Opening a Brokerage Account

The first requirement for any investor looking to buy shares on the ASX is a licensed brokerage account. In Australia, the platforms most commonly used by retail investors include CommSec, SelfWealth, Pearler, and Stake. Each provides access to ASX-listed securities, and several extend to international markets as well (ASX, 2026).

Three factors are worth comparing carefully. The first is brokerage fees which is the cost charged per transaction. SelfWealth operates on a flat fee of $9.50 per trade regardless of order size, making it cost-effective for larger purchases (SelfWealth, 2026). CommSec commands higher fees but remains the most widely used retail platform in the country. The second is ongoing platform fees, which vary across providers and can erode returns quietly over time if left unexamined (Finder, 2026).

The third and arguably most important consideration is CHESS sponsorship. CHESS (Clearing House Electronic Subregister System) sponsorship means an investor’s holdings are registered directly in their own name on the ASX’s settlement system, rather than being held by the broker on the investor’s behalf (Stake Investing, 2025).

The distinction matters, as in the event of broker insolvency, CHESS-sponsored holdings remain legally the investor’s property and are unaffected. SelfWealth and Pearler both operate on a CHESS-sponsored model. Stake uses a custodial structure for its international markets product, which prospective users should understand before proceeding.

Investors are also advised to provide their Tax File Number during registration. Failing to do so results in investment income being withheld at the highest marginal rate, which is an avoidable and costly outcome (ATO, 2026).

Understanding the Product: What ETFs Actually Are

An Exchange Traded Fund (ETF) is a pooled investment vehicle that holds a collection of assets, most commonly shares or bonds and trades on a stock exchange in the same manner as an individual share. Rather than requiring an investor to research, select, and monitor individual companies, a single ETF purchase can provide exposure to an entire index or asset class simultaneously.

The long-run evidence in favour of index-tracking ETFs is well established. Low management fees, broad diversification, and a consistent track record of outperforming the majority of actively managed funds after costs make them the instrument of choice for most long-term retail investors.

The ETFs most frequently used by Australian investors include VAS (Vanguard Australian Shares Index ETF, tracking the ASX 300), VGS (Vanguard MSCI Index International Shares ETF, covering developed global markets), BGBL (Betashares Global Shares ETF, a slightly lower-cost alternative to VGS), NDQ (Betashares NASDAQ 100 ETF, offering concentrated US technology exposure), and fixed income options such as VAF for investors seeking a defensive component (Shani Jayamanne, 2026).

A commonly recommended starting allocation at 30% VAS and 70% VGS or BGBL provides broad domestic and international diversification at a combined annual management cost of approximately 0.10-0.15% (Vanguard, 2024). 

The Tax Framework: Three Concepts Every Investor Should Understand

Portfolio construction determines what an investor owns. Tax efficiency determines how much of the resulting returns they actually keep. There are three concepts central to this in the Australian context.

Capital Gains Tax

A capital gain arises when an asset is sold for more than its original purchase price, and that gain is included in the investor’s assessable income for the relevant financial year. What distinguishes the Australian system, and what significantly shapes optimal investor behaviour, is the treatment of assets held for longer than twelve months.

Under the CGT discount, assets held for more than one year before disposal attract tax on only 50% of the capital gain. For an investor on the 37% marginal rate, this halves the effective tax rate on the gain from 37% to 18.5%. The incentive to hold rather than trade is, by design, embedded directly into the tax system (BDO, 2026).

An investor who purchases $10,000 of an international ETF and sells three years later for $16,000 has a gross gain of $6,000. With the CGT discount applied, only $3,000 is added to taxable income. At a 37% marginal rate, the tax liability is $1,110 compared to $2,220 without the discount (NAB, 2026).

Franking Credits

Australia’s dividend imputation system is designed to prevent corporate profits from being taxed twice, first at the company level, and again in the hands of shareholders when dividends are distributed (EndureGo, 2024).

When an Australian company pays corporate tax and subsequently distributes a dividend, it may attach franking credits to that dividend representing the tax already remitted at the corporate rate, currently 30% for large companies and 30% for smaller ones. The shareholder declares both the cash dividend and the franking credit as assessable income, but receives a tax offset equal to the value of the credit. Where the franking credit exceeds the investor’s tax liability on the dividend, which is a situation that arises most commonly for lower-income earners,  (ATO, 2022).

In practical terms, this makes Australian-focused ETFs such as VAS considerably more tax-efficient for investors in lower marginal tax brackets. The underlying holdings, including major banks, resource companies, and large retailers tend to distribute well-franked dividends, and those credits flow through to ETF unitholders. International ETFs such as VGS carry no franking credits, as companies domiciled outside Australia operate entirely outside the imputation system. Dividends from international ETFs are assessed as ordinary income at the investor’s full marginal rate (Vanguard, 2025).

The implication for portfolio construction is that the relative attractiveness of Australian versus international equity exposure is not solely a function of expected returns is also shaped by the investor’s marginal tax rate and the franking levels of the underlying holdings.

A placement is a capital-raising transaction in which a listed company issues new shares directly to institutional investors, typically large fund managers and superannuation funds at a fixed price, usually set at a discount to the prevailing market price. Placements are a common feature of the ASX, particularly among resource companies, real estate investment trusts, and growth-stage businesses seeking to raise capital quickly without the time and regulatory cost of a rights issue or secondary offering (Gavan Farley, 2020).

For existing shareholders, placements are dilutive by nature. The issuance of new shares reduces each existing shareholder’s proportional ownership of the company. Where the placement price is set below market, the share price typically adjusts towards that level as the discount is distributed. This is what makes it beneficial to participate.

It is common practice for companies undertaking a placement to accompany it with a Share Purchase Plan (SPP), which extends the same discounted pricing to existing retail shareholders up to a prescribed limit, generally $30,000. Participation in an SPP allows retail investors to acquire additional shares on the same terms as institutional participants, partially mitigating the dilutive effect of the placement itself (Scott Francis, 2016).

For investors holding diversified ETFs, individual placements in underlying companies are managed at the fund level and require no action from unitholders. For those holding direct ASX positions, however, understanding the mechanics of a placement announcement, including what the placement price implies for current market value and whether an SPP is being offered is a basic requirement of managing those holdings with any degree of competence.

Portfolio Construction and Execution

The operational principles of long-term investing are not complicated. Regular contributions, low costs, broad diversification, and minimal unnecessary trading are the variables that most consistently produce strong long-run outcomes. Platforms such as Pearler are designed specifically around this model, allowing investors to automate periodic contributions into nominated ETFs on a fixed schedule, removing the discretionary element that so often leads to poorly timed decisions.

Happy Investing!

The Australian equity market continues to offer a diverse range of investment opportunities despite ongoing economic uncertainty. While short-term volatility is inevitable, long-term investors can benefit from focusing on quality businesses, attractive valuations and structural growth trends.

Whether pursuing growth opportunities in technology and healthcare, value opportunities in financials and industrials, or exposure to Australia’s world-class resource sector, maintaining a disciplined investment approach remains critical. As market conditions evolve, investors who remain focused on fundamentals rather than short-term sentiment will be best positioned to achieve sustainable long-term returns.

This article is for general information purposes only and does not constitute financial advice. Investors should consider their own objectives, financial situation and risk tolerance before making investment decisions.