Register For Our Mailing List

Register to receive our free weekly newsletter including editorials.

Home / 86

Set yourself to benefit from compounding

Recently I wrote that a person aged 25 and earning $35,000 a year may accumulate $4 million in superannuation at age 65 just by relying on the employer compulsory contribution.

This resulted a flood of emails asking if I had made a mistake in the calculations as the outcome seemed too good to be true.

There was no mistake – it was just compound interest doing its work. To put it simply, how much you will have at the end of a given period depends on the time the money is invested and the rate you can achieve. If the term is short, the rate matters little, but as time lengthens it matters enormously.

To get an estimate of how much a 25-year-old could expect at age 65 we need to make certain assumptions. They are the rate of growth of salary, inflation, and a reasonable earning rate. In the example, I assumed inflation was 3% per annum, wages growth was 4% per annum, and the rate of return was inflation plus 7% (historically reasonable but perhaps a tad optimistic now). This gives a nominal return of 10% per annum. I also assumed the employer contribution would rise to 12% by 2020.

An important step for understanding the buying power of the $4 million is to convert those future dollars to today’s dollars. If inflation was 3% per annum, $4 million in 40 years would have a value of just $1,212,000 in today’s dollars. Yes, still a hefty sum, but doesn't sound nearly as much as $4 million.

Massive impact of term and earning rate

The big lesson here is the way the rate and the duration of the investment dramatically affect the end balance. Suppose a person invested $1,000 a month towards their retirement. If they started at 25 they would have $6.3 million at age 65 if they could achieve 10% per annum. However, the final sum would be just $2 million if they only achieved 6% per annum.

If a person waited until they were 45 to start the programme, and still managed to invest $1,000 a month they may have $760,000 at 10% and $462,000 at 6%. Because the term is much shorter the lower earning rate does not have such a dramatic effect.

The importance of getting the best return on your superannuation is particularly important now that employer contributions are not going to increase as fast as originally planned.  Recently the media have been focusing on the effect a reduction in the employer contribution would have on their final balance, but it’s small bikkies in the scheme of things. For a person earning $80,000 a year the net employer contribution after the 15% entry tax would be $6,460 at 9.5% of salary and $8,160 at 12% of salary. The difference is just $1700 a year.

Engage with your super early

I regularly receive emails from young people whose superannuation is all in the capital stable or balanced area. This is inappropriate for anybody under 50. To make matters worse the majority of SMSFs have no exposure to international funds at all. Obviously the trustees have never bothered to check out funds like Magellan (Global Fund) and Platinum (International Fund), which have strong track records of delivering good returns.

A major finding of the Cooper Review into superannuation was that 80% of Australians were ‘disengaged with their super’. If you find yourselves in that 80%, my advice to you is to start to get engaged. You've just seen how a small difference in the rate of return or starting earlier can make a huge difference to the amount you will have when you retire.

 

Noel Whittaker is the author of Making Money Made Simple and numerous other books on personal finance. His advice is general in nature and readers should seek their own professional advice before making any financial decisions. His website is www.noelwhittaker.com.au.

 

  •   31 October 2014
  • 1
  •      
  •   
1 Comments
Ramani
October 31, 2014

That humanity needs to be reminded time and again about compound interest is a telling commentary on our collective ability to ignore the basics. Like gravity, compounding works its impact in an agnostic way - just as Noel points out the merits of compounding when you are a saver, the downside when you are a borrower and allow interest to accumulate is equally relentless. The disengaged, the negligent, the downright careless and the unfortunates fallen on hard times find this to their personal and family cost.

We have successfully transformed our inability into extreme forms of reaction, including pejoratives such as 'usury'.

On the practical side, deposit-takers and lenders have arrogated to themselves the mathematical consequences of compounding: thus a five year compounded deposit boasts of a stellar equivalent simple interest rate achieved, forgetting that each interest instalment has also been deposited till residual maturity. Equally, the interest 'saved' by borrower by increasing the frequency of repayment is often advertised almost as if the lender is doing a favour. It would help to remember that the ultimate saving of interest is achieved by making the principal or duration zero: don't borrow, or repay on the date of borrowing!

Something many find revealing is compound growth is more natural than simple rate of growth. If we accept that something will grow by a set percentage at a defined frequency, it must follow that the new growth will also grow likewise. Simple rate of growth denies further growth to the new offshoot, and is hence artificial. Think of a small plant, and this will dawn on us.

 

Leave a Comment:

RELATED ARTICLES

Let’s talk more about compounding and the Rule of 72

Survival is the only success

A steady road to getting rich

banner

Most viewed in recent weeks

2 billion reasons to fix retirement income

A proposal to address Australia's 'stranded balances' in retirement by requiring super funds to transition members to pension phase at 65, boosting retirement income and reframing super as a source of income.

The ultimate superannuation EOFY checklist 2026

Here is a checklist of 28 important issues you should address before June 30 to ensure your SMSF or other super fund is in order and that you are making the most of the strategies available.

Do super funds need a massive wake up call?

UK retirement expert, Guy Opperman, believes super funds are failing at supporting members in deaccumulation. Here is what Australia should do about it. 

Two months into retirement

A retirement researcher's take on retirement and her focus on each of her six resource buckets to stay engaged during the transition and beyond.

Reforming the taxation of wealth and wealth transfers

As the budget approaches debate continues about the need and method for addressing wealth inequality. Could reinstating wealth transfer taxes be the answer?

Welcome to Firstlinks Edition 662 with weekend update

The debate over the budget is increasingly shaped by frustration and perceptions of unfairness, rather than clear-eyed assessment of policy outcomes.

Latest Updates

Back to the future - Why indexing CGT is a good idea

A return to indexation of capital gains would be a fairer way to compensate households for the effects of inflation than the current discount. Importantly, it opens the door to future, broader reforms to stop the taxation of inflation.

Australia has no death duties. Technically.

Australia may not levy formal death duties, but a growing web of tax measures is quietly shaping what wealth passes between generations. Now, the 2026 budget adds another layer.

Strategy

The folly of the Iran war

From oil shocks to fractured alliances, the Iran war carries the hallmarks of a historic policy misstep - one that could tip an already fragile global economy into crisis.

Taxation

Noel Whittaker’s take on the budget

Marketed as a fix for inequality and housing affordability, the latest budget instead delivers a tangle of tax changes that leave everyday Australians worse off.

Investment strategies

The red metal's long game

Copper has had a rough few weeks but investors should not ignore the potential for future price increases as supply increasingly falls behind demand.

Taxation

The lesser-known effects of changed property taxes

The budget’s property tax reforms are being framed as fairness measures, but they risk splitting the housing market, penalising lower‑income investors and introducing distortions that may prove costly.

Latest from Morningstar

Why stocks sometimes fall for no obvious reason

The vast and opaque world of private assets is a powerful gravitational force - and when trouble hits, it's the more liquid public equities that often the feel it first.

Sponsors

Alliances

© 2026 Morningstar, Inc. All rights reserved.

Disclaimer
The data, research and opinions provided here are for information purposes; are not an offer to buy or sell a security; and are not warranted to be correct, complete or accurate. Morningstar, its affiliates, and third-party content providers are not responsible for any investment decisions, damages or losses resulting from, or related to, the data and analyses or their use. To the extent any content is general advice, it has been prepared for clients of Morningstar Australasia Pty Ltd (ABN: 95 090 665 544, AFSL: 240892), without reference to your financial objectives, situation or needs. For more information refer to our Financial Services Guide. You should consider the advice in light of these matters and if applicable, the relevant Product Disclosure Statement before making any decision to invest. Past performance does not necessarily indicate a financial product’s future performance. To obtain advice tailored to your situation, contact a professional financial adviser. Articles are current as at date of publication.
This website contains information and opinions provided by third parties. Inclusion of this information does not necessarily represent Morningstar’s positions, strategies or opinions and should not be considered an endorsement by Morningstar.