Cheapest ASX ETFs by Expense Ratio (2026)
The cheapest Australian ETF now costs 0.03% per year - less than $3 on a $10,000 investment. We rank every category by minimum MER, explain what fees actually compound to over 30 years, and show you the hidden costs that MER alone misses.
A handful of ASX ETFs charge as little as 0.03–0.04% in fees, and picking them over pricier options can save you six figures over a lifetime of investing.
- 01VTS (0.03%) and A200 (0.04%) are the cheapest ETFs on the ASX: you'll pay just $30–$40 a year on a $100k portfolio.
- 02The fee gap between 0.03% and 1.20% compounds to roughly $196,000 over 30 years on $100k: fees are the silent killer of long-term returns.
- 03MER fees are deducted daily from the ETF's net asset value, so you'll never see them as a line item on your statement.
- 04Don't stress over a 0.03% difference between two cheap ETFs: that's $30 a year on $100k, and tracking error and bid-ask spreads matter more at that point.
who this is for: Australian investors shopping for index ETFs who want to know which funds are genuinely cheapest and whether the fee differences actually matter.
In 2001, the cheapest ASX-listed ETF charged 0.286% per year. Today, you can buy a fully diversified ETF holding the entire US stock market for 0.03% - a 90% fee reduction in 25 years. On a $500,000 portfolio, that difference compounded over 30 years is worth more than $200,000 in additional wealth.
But fee comparisons are easy to get wrong. The headline MER number misses bid-ask spreads, tracking error, tax drag from foreign withholding taxes, and the hidden cost of currency hedging. This guide gives you the complete picture: what fees really cost you in dollar terms, which ETF is genuinely cheapest in each category, and the cases where a slightly higher MER is actually worth paying.
Why fees are the only free lunch in investing
Jack Bogle, the founder of Vanguard, called low-cost investing the only genuine free lunch available to investors. His reasoning was straightforward: in aggregate, all investors own the entire market. Before costs, the average investor must earn the market return. After costs, the average investor must earn less than the market return. The only variable any investor fully controls is the cost they pay.
This logic has been validated empirically. Morningstar's annual Fund Fee Study consistently finds that expense ratio is the single most reliable predictor of future outperformance - more reliable than star ratings, manager track record, or any qualitative assessment. The cheapest quintile of funds outperforms the most expensive quintile in every asset class and every time period studied. This is not a marginal difference: Morningstar found the gap between the cheapest and most expensive fund quintiles was larger than the gap attributed to any other factor, including past performance.
For Australian index ETFs, the evidence is even cleaner. SPIVA's S&P Indices Versus Active (SPIVA) Australia scorecard shows that over 15-year periods, more than 80% of actively managed Australian equity funds underperform the S&P/ASX 200. The primary explanation is fees: the average active Australian equity fund charges approximately 0.90-1.20% per year, versus 0.04-0.10% for passive alternatives. That difference compounds into a substantial structural disadvantage that stock selection skill rarely overcomes.
The arithmetic of investing means that in any given period, the gross return earned by all investors must equal the market return. After deducting fees, the net return must be less. Therefore, a low-cost index fund that charges 0.04% must, in aggregate, outperform an active fund that charges 1.20% by exactly 1.16% per year before accounting for any difference in stock selection or market timing. The burden of proof is always on the active manager to demonstrate they can overcome this structural disadvantage.
How MER is actually deducted
The management expense ratio is not charged as a visible fee deduction from your brokerage account. Instead, it is accrued daily from the fund's net asset value. If a fund has a 0.18% MER, approximately 0.0005% is deducted from the fund's assets each trading day (0.18% divided by approximately 365 days). This reduces the fund's unit price slightly relative to the underlying assets each day.
The practical implication is that you never see the fee as a line item. Your statement will show performance based on the net-of-fee return, and the fee will have already been deducted from the unit price. This makes MER very easy to ignore - which is precisely why it matters so much. Invisible costs are still real costs.
The dollar amounts look small annually. The compounding impact over decades does not.
The 30-year compounding impact
The chart below shows the same $100,000 invested at a 7% gross return - but with different annual fees deducted. The gross return is identical in every scenario; only the fee level changes.
The gap between VTS (0.03%) and a typical active fund (1.20%) after 30 years is approximately $196,000 on a $100,000 initial investment - and this assumes the active fund matches the market before fees, which the SPIVA data shows most do not. If the active fund also underperforms by 0.5% per year due to stock selection decisions, the gap widens to over $280,000.
Notice that the gap between fee levels widens exponentially over time, not linearly. In year 10, the difference between 0.03% and 1.20% costs is approximately $22,000. By year 20 it is $71,000. By year 30 it is $196,000. This is not because the fee itself changes - it stays constant. It is because higher fees suppress the base that future compounding works on. Every dollar paid in fees is a dollar that stops compounding for the entire remaining investment period.
Cheapest ETF by category (March 2026)
The chart below ranks the minimum available MER in each major ETF category on the ASX. All figures are sourced from current fund provider PDS documents.
A few things stand out. First, the range is enormous: from 0.03% for VTS (US Total Market) to 0.57% for crypto ETFs - a 19x difference. Second, the cheapest categories are broad, liquid, widely-replicated indexes where competition between providers has driven fees to near-zero. Third, specialist categories (crypto, infrastructure, thematic) still command high fees because competition is limited and the underlying assets are more expensive to manage.
- ✓Australian Equity: A200 at 0.04% is the gold standard. MVR (Australian Resources) matches it at 0.04% for sector exposure. Both BetaShares products benefit from massive AUM enabling fee cuts.
- ✓Global Developed Markets: BGBL (BetaShares) at 0.08% edges VGS at 0.18% on MER. VTS at 0.03% is technically cheaper but is US-domiciled, requiring a W-8BEN form and no DRP - complicating factors for most Australian investors.
- ✓Bonds: The Australian bond space is competitive - IAF (iShares), VAF (Vanguard) and AAA all cluster at 0.15-0.20%. IAF at 0.15% is currently cheapest for broad Australian duration.
- ✓Gold: PMGOLD at 0.15% wins on MER and has the unique Government of Western Australia guarantee on the Perth Mint vaulting. Competitors (GOLD, QAU) charge 0.40-0.48%.
- ✓Cryptocurrency: EBTC and EETH both charge 0.57%. This is the most expensive mainstream category by MER and comes with the highest underlying volatility. The combination of high fees and high volatility makes these ETFs the most challenging from a total-return perspective.
25 years of falling costs: the fee war on the ASX
When STW (SPDR S&P/ASX 200 ETF) listed in 2001, it charged 0.286% per year. That was considered cheap. Today, that same exposure costs 0.04% through A200 - and the trend shows no sign of reversing.
The fee war has been driven by three forces: first, index ETFs are a commodity product where differentiation is nearly impossible - two ETFs tracking the same index should deliver the same gross return, so price is the only competitive variable. Second, as fund AUM grows, fixed operating costs are spread over more assets, allowing fee cuts without reducing manager profitability. Third, direct competition: when BetaShares launched A200 at 0.07% in 2018 (undercutting VAS at 0.14%), Vanguard responded. BetaShares then cut A200 to 0.04% in 2019. This dynamic benefits investors directly.
If you bought VAS in 2015 at 0.14% MER, you now hold it at 0.07% without doing anything. Vanguard cut the fee in 2020. Similarly, A200 was cut from 0.07% to 0.04% in 2019. Sign up for fund provider email updates or check the PDS annually - fee cuts apply immediately to existing holdings and do not require any action from you.
Hidden costs beyond MER
MER is a necessary starting point but an incomplete picture of total ownership cost. Four additional cost factors can be meaningful, especially for smaller or less liquid ETFs.
1. Bid-ask spread
Every time you buy or sell an ETF, you transact at the market bid (for sells) or ask (for buys). The gap between these two prices is the bid-ask spread, which represents an implicit cost paid to market makers. For large liquid ETFs like A200 or IVV, the spread is typically 0.01-0.05% - negligible. For small, illiquid ETFs it can be 0.20-0.50%, which can exceed the annual MER on a short holding period. For long-term buy-and-hold investors who transact infrequently, spread matters less than for active traders.
2. Tracking error
Tracking error measures how closely an ETF's actual performance matches its benchmark index. A fund with 0.18% MER might have 0.25% tracking error, meaning it underperforms by more than just the fee. This is common in ETFs using optimised replication (holding a representative sample of the index) rather than full replication. For most major Australian and global equity ETFs, tracking error is very low - often less than 0.05% additional drag. For more complex indexes (small cap, factor-based, alternative assets), tracking error can be significantly higher.
3. Foreign withholding tax
International ETFs that hold foreign stocks may face withholding tax on dividends paid by those companies. US dividends are typically subject to 15% US withholding tax under the Australia-US tax treaty. For an ETF domiciled in Australia (like IVV), this tax is applied at the fund level and reduces the distribution you receive. For VTS (US-domiciled), Australian investors must also sign a W-8BEN form declaring non-US tax residency to qualify for the 15% treaty rate rather than the 30% default rate.
4. Brokerage
Every purchase or sale of an ETF incurs brokerage commission. For investors using platforms like CommSec or NAB Invest, this is typically $9.95-$19.95 per trade. For frequent small purchases, brokerage can materially add to effective costs. A $1,000 monthly contribution through CommSec at $9.95 per trade adds an effective 1.0% additional cost per transaction. Pearler (which offers $6.50/trade, or $0 for their auto-invest feature) and SelfWealth ($9.50 flat) reduce this burden. For larger lump-sum investors, the relative impact of brokerage diminishes rapidly.
When cheapest is not best
The cheapest ETF in a category is not always the right choice. Three specific situations warrant paying a modest fee premium:
- ✓Liquidity for large investors: If you are investing $500,000+, an ETF with very low AUM (under $100M) may have insufficient liquidity to enter and exit positions efficiently. Bid-ask spreads widen for large trades even in otherwise liquid ETFs. For such positions, a slightly more expensive but highly liquid fund (like VAS at 0.07% vs a smaller 0.05% alternative) can reduce execution cost enough to justify the MER difference.
- ✓Index breadth and construction: VTS at 0.03% tracks ~3,600 US companies including small and micro caps. IVV at 0.04% tracks only the 500 largest. Neither is universally better - the choice depends on whether you want small-cap exposure. The 0.01% MER difference is irrelevant to this decision.
- ✓Tax-specific situations: Some ETFs distribute capital gains (generating a tax event) while others accumulate gains within the fund. For investors in high marginal tax brackets, a fund that minimises distributions (even at a slightly higher MER) may have superior after-tax performance.
Total cost of ownership framework
A practical framework for comparing ETF costs: start with MER as the baseline, then add estimated tracking error (available in the fund's annual report), add an estimated brokerage cost amortised over your expected holding period, and for international funds, account for estimated withholding tax drag on the yield.
For the vast majority of Australian investors using large, liquid ETFs for long-term buy-and-hold, MER dominates all other cost factors. The difference between A200 at 0.04% and VAS at 0.07% is 0.03% per year - smaller than the measurement uncertainty in tracking error comparisons between the two funds. At this level, the right approach is to pick either and stop optimising.
It is possible to spend more cognitive energy optimising for MER differences of 0.01-0.03% than those differences will ever be worth in dollar terms. A 0.03% annual difference on a $100,000 portfolio is $30 per year. Spending hours researching which fund to choose to save $30 annually is not a good use of time. Pick any fund with MER under 0.10% for broad exposure and redirect your energy toward contribution rate, asset allocation, and tax management - the decisions that actually move the needle.
Methodology
MER figures are sourced from each fund provider's current Product Disclosure Statement (PDS). Where a fund has updated its MER mid-year, the current figure is used. 'Cheapest by category' shows the single lowest-MER ETF in each category; where two ETFs tie exactly on MER, the larger by AUM is shown. All data is current as at March 2026 and is updated when providers publish new PDS documents.
Tracking error data is sourced from each fund's most recent annual report or semi-annual fund update where available. For funds launched within the last 12 months, tracking error data may be unavailable or based on a short observation window. The SPIVA Australia data referenced in this article is from the S&P Indices Versus Active (SPIVA) Australia Mid-Year 2025 Scorecard. Morningstar fee study references are from Morningstar's annual global fund fee analysis.