This article provides general information only and does not constitute personal financial advice. It has been prepared without taking into account your objectives, financial situation or needs. Before acting on any information in this article, you should consider whether it is appropriate for you and seek advice from a licensed financial adviser if necessary.

The management expense ratio (MER) is the annual percentage fee you pay to own a superannuation fund, exchange-traded fund (ETF), or managed investment. It covers administration, investment management, and operational costs. A difference of just 0.5% or 1% might seem trivial on paper, but over twenty years, that small percentage can cost you tens of thousands of dollars in lost retirement savings.

How fees compound against you

Investment returns compound over time, and so do the fees you pay. According to ASIC MoneySmart, even small differences in fees can significantly reduce your final balance because you lose not only the fee amount each year, but also the returns that money would have earned if it had remained invested.

As covered in Principles of Finance (OpenStax, Rice University), the power of compounding works in both directions. When fees are deducted from your account balance each year, you lose the growth on that money for every year that follows. This drag effect accelerates over time.

A twenty-year comparison

Consider two Australian investors, each starting with $100,000 in their superannuation account at age 45. Both earn an average annual return of 7% before fees. The only difference is the MER:

Investor A holds a low-cost industry super fund or index ETF charging 0.5% per year.

Investor B holds a retail super fund or actively managed fund charging 1.5% per year.

After twenty years (at age 65):

  • Investor A (0.5% MER, net return 6.5% p.a.): balance grows to approximately $353,000.
  • Investor B (1.5% MER, net return 5.5% p.a.): balance grows to approximately $293,000.

The 1% difference in annual fees costs Investor B around $60,000 over twenty years. That is money that could have funded an extra two to three years of retirement income.

Read also: Salary Sacrifice Into Super in Australia: What It Changes in Take-Home Pay

The bigger the balance, the bigger the cost

The dollar impact of fees grows as your balance increases. In the first year, a 1% fee on $100,000 costs you $1,000. By year ten, when your balance might be $200,000, that same 1% fee costs $2,000. By year twenty, on a balance of $300,000, it costs $3,000 annually.

According to data from APRA, the average Australian superannuation balance for those aged 60 to 64 is well over $250,000, meaning the annual dollar cost of a high-fee fund can exceed $2,500 per year in the final years before retirement.

What counts as a reasonable MER in Australia

For Australian superannuation, according to the ATO:

  • Low-cost industry super funds: typically 0.4% to 0.8% total fees.
  • Retail super funds: often 1.0% to 2.0% or higher.
  • SMSFs: fees vary widely; cost-effective for balances above $200,000.
  • ASX-listed index ETFs: many charge 0.1% to 0.3% (plus brokerage).
  • Actively managed funds: commonly 0.8% to 1.5% or more.

As of August 2026, verify current fee benchmarks and product disclosure statements before making any decision.

Small differences, large outcomes

A 0.5% difference in MER may seem negligible, but compounded over two decades on a six-figure balance, it can easily cost you $20,000 to $30,000. A 1% difference can exceed $50,000. For many Australians, that represents one to two years of retirement income.

The lesson is clear: pay close attention to the MER when choosing your superannuation fund, ETF, or managed investment. Lower fees do not guarantee better performance, but they do guarantee you keep more of the returns your investments generate.

What to do next

Review the Product Disclosure Statement (PDS) or annual statement for your current super fund or investments. Look for the total fees line, often expressed as the indirect cost ratio (ICR) or MER. Compare that figure to low-cost alternatives in the same asset class. If you hold a high-fee product without compelling reasons (such as specialised advice or unique investment options), consider whether a lower-cost option might serve you better.

For personal guidance tailored to your financial situation, consult a licensed financial adviser.