Home / In retirement / Income from super / The importance of the 10/30/60 Rule to your retirement income

The importance of the 10/30/60 Rule to your retirement income

It’s tough working out how to build a solid retirement income. 

There are a lot of moving parts. It’s essential to understand where your money is likely to come from and how you can build on what you’ve already saved.

To add perspective to your thinking, a simple ‘rule of thumb’ about retirement income might assist you.

Where does your retirement income come from?

Research first undertaken in the United States some 30 years ago is still relevant for Australian super fund members today. It found for most people, around 90 cents of every dollar in retirement income comes from the earnings you achieve on your investments before and after retirement. Just 10 cents of each dollar of retirement income comes from the original contributions you made during your working life.

More surprisingly, around 60 cents in every dollar of retirement income comes from the investment earnings you achieve after you retire.

Jim Hennington, actuary at Jubilacion, has tested these calculations and adapted them for Australia’s superannuation system today (see below). He confirms the principles are still very relevant to Australians.


Need to know

According to the 10/30/60 Rule from the USA, your retirement income usually comes from the following sources:

  • 10% from the money you saved during your working years
  • 30% from the investment returns you achieve before you retire
  • 60% from the investment returns you achieve during your retirement.

Applying this to Australian super funds using appropriate tax settings, retirement age and economic assumptions, Hennington found the percentages are:

  • 15% from the money you saved during your working years
  • 35% from the investment returns you achieve before you retire
  • 50% from the investment returns you achieve during your retirement.

Although the actual percentages for each person will vary depending on their personal situation and the market conditions they live through, the principles are highly relevant to the way most people’s superannuation works over the course of their lifetime.

The practical implication is that earning a good investment return on your retirement savings is just as important, if not more important, than it was during your working life.

It’s all to do with the way investment returns work over the long term, and the impact of compound interest.


Background

The US study that gave rise to the 10/30/60 Rule was undertaken by a team led by world-renowned pension fund expert, D. Don Ezra in June 1989. It was based on research undertaken with defined benefit (DB) pension funds but was replicated with defined contribution (DC) funds. (These days most Australians are members of defined contribution funds, although many public servants are still in older defined benefit funds.)

The 10/30/60 Rule assumes a person joins their super fund at age 25 and contributes $1,000 per year, with this amount rising 4.75% every year after that until retirement. The person begins receiving a retirement income at age 65, and this rises 3% each year until death at age 90, when their account balance is nil. The investment return (net of fees and taxes) is assumed to be 7.8% every year.


Does the 10/30/60 Rule apply to Australian retirees?

Hennington’s calculations for Australia assume the person joins a super fund at age 25 and contributes $7,000 per year (before contribution tax) with this amount rising 3.5% every year until retirement at age 67. They then begin drawing a retirement income that increases by 2.5% per year. The amount they draw gets calculated so their balance is zero when they reach age 92. While working, the assumed investment return is 6.5% per year (net of tax) less fees and charges of 0.7% per year. In retirement, the assumed return remains at 6.5% per year (assuming slightly more conservative investments but no tax) less fees and charges of 0.7%.

In Australia, based on these assumptions, their balance, contributions and net investment income look as follows:

AgeContributions $ per yr 
after 15% tax
Start of year
$ balance
Investment income
$ per year
Drawings
$
25 5,950 –     
26 6,158 6,127 177 
27 6,374 12,840 554 
28 6,597 20,180 967 
29 6,828 28,195 1,418 
30 7,067 36,932 1,909 
31 7,314 46,444 2,445 
32 7,570 56,786 3,028 
33 7,835 68,017 3,661 
34 8,109 80,200 4,349 
35 8,393 93,403 5,094 
36 8,687 107,698 5,901 
37 8,991 123,159 6,775 
38 9,306 139,869 7,719 
39 9,631 157,914 8,739 
40 9,968 177,386 9,841 
41 10,317 198,383 11,029 
42 10,678 221,010 12,310 
43 11,052 245,378 13,689 
44 11,439 271,605 15,175 
45 11,839 299,817 16,773 
46 12,254 330,148 18,492 
47 12,682 362,740 20,339 
48 13,126 397,747 22,324 
49 13,586 435,328 24,455 
50 14,061 475,656 26,742 
51 14,553 518,914 29,196 
52 15,063 565,295 31,828 
53 15,590 615,007 34,649 
54 16,136 668,270 37,673 
55 16,700 725,317 40,911 
56 17,285 786,397 44,379 
57 17,890 851,774 48,092 
58 18,516 921,729 52,066 
59 19,164 996,562 56,317 
60 19,835 1,076,589 60,863 
61 20,529 1,162,149 65,725 
62 21,248 1,253,600 70,922 
63 21,991 1,351,324 76,476 
64 22,761 1,455,726 82,411 
65 23,558 1,567,236 88,750 
66 24,382 1,686,314 95,520 
67  1,813,445 102,749 105,924
68  1,810,826 103,305 108,572
69  1,805,240 102,986 111,286
70  1,796,438 102,484 114,069
71  1,784,153 101,783 116,920
72  1,768,100 100,868 119,843
73  1,747,976 99,720 122,839
74  1,723,458 98,321 125,910
75  1,694,199 96,652 129,058
76  1,659,832 94,691 132,285
77  1,619,964 92,417 135,592
78  1,574,177 89,805 138,981
79  1,522,025 86,829 142,456
80  1,463,032 83,464 146,017
81  1,396,695 79,679 149,668
82  1,322,472 75,445 153,410
83  1,239,791 70,728 157,245
84  1,148,040 65,494 161,176
85  1,046,569 59,705 165,205
86  934,686 53,323 169,335
87  811,655 46,304 173,569
88  676,690 38,604 177,908
89  528,959 30,176 182,356
90  367,572 20,969 186,915
91  191,587 10,930 191,587
92 00

If we focus on what happens in retirement, the sum of future drawings from age 67 (that is, the sum of the right-hand column of the table) was $3,618,127.

Slightly over half of this (50.1%) came from the balance they had at age 67 (which was $1,813,445) and the rest (49.9%) came from summing their investment returns after age 67 ($1,804,682).

In other words, half of their retirement income comes from investment returns after they’ve retired. Only half of their retirement income came from drawing down the balance they held at age 67.

Why do investment returns play such a big role?

Basically, as your balance grows, investment returns become a major source of cashflow. By age 41, the investment income in the above table is more than the contribution level. Most people’s super reaches a peak when they retire and start drawing money out for retirement. Depending on how much they draw each year, the balance often remains high, long into retirement.  

In the retirement phase, the maths is working in a similar way to when you make standard payments on a mortgage over the 20-year or 25-year term of your home loan. During the early years, your mortgage payments consist mainly of interest – as the balance owing is high. Towards the end of the loan, as the balance owning reduces, your mortgage payments consist mainly of capital repayments.

It’s similar in retirement, your drawdowns in the early stages consist mainly of investment returns on your balance. Whereas later in retirement, as your balance reduces, your drawings mainly consist of the capital itself.

Risk and uncertainty

The above calculations are all based on fixed assumptions. This is a limitation of using simple projection models for retirement. The calculations assume a known ‘run out age’ and fixed rates of growth for investment returns and salary increases. In reality, none of these are known with certainty at all!

Retirees don’t know what future returns they will get. Nor do they know how long they will live. This means they cannot determine how much they can draw from super with any certainty. Depending on these factors, and the risk of negative returns close to retirement, the amount of drawings your super can sustain in retirement varies dramatically.

Nonetheless, instead of moving all your money into cash, which drastically reduces your investment income prospects, modern retirement models can take into account the probability of all possible outcomes. This means you can find out the level of retirement spending that you can enjoy with, say, 95% confidence that it’s sustainable for life – even if you live a long time, market returns aren’t favourable or living costs increase.

Conclusion: What does this mean for retirees?

Although choosing the right investment option or mix of assets for your super account is important during your working life, the above ‘rules of thumb’ show it is just as important in retirement.

As a retiree, you need to keep investing your nest egg throughout your retirement years with a carefully considered strategy balancing security, investment risk and good investment returns.

If you retire in your 60s, you might be in retirement for 20–30 years, and that means you need to take a longer-term view of your investments. You may wish to consider taking on some investment risk with at least part of your retirement savings with the aim of generating solid returns.

By including some growth assets (broadly shares and property) in your portfolio to provide enhanced returns, you may be able to defer the need to draw heavily on your capital amount.

History has shown growth assets usually have a better chance of delivering the good returns needed to fund your retirement income, even if you are drawing down on them at the same time. Modern modelling techniques help to trade off risk (running out of money) and return (a higher lifestyle or other goals) in the retirement phase. 

The modelling for this article was kindly provided by Jim Hennington, qualified actuary. Jim is co-founder of Jubilacion who provide an expert retirement modelling service for individuals. Jubilacion’s software helps people design retirement plans that take risk into account, based on their circumstances, decisions and goals.


Super tip

Being too conservative with all your investments in retirement could mean your money grows too slowly and you end up outliving your retirement savings.

Discover more about how long you can expect to live, and what it means for your super.


About the author

Related topics,

IMPORTANT: All information on SuperGuide is general in nature only and does not take into account your personal objectives, financial situation or needs. You should consider whether any information on SuperGuide is appropriate to you before acting on it. If SuperGuide refers to a financial product you should obtain the relevant product disclosure statement (PDS) or seek personal financial advice before making any investment decisions. Comments provided by readers that may include information relating to tax, superannuation or other rules cannot be relied upon as advice. SuperGuide does not verify the information provided within comments from readers. Learn more

© Copyright SuperGuide 2008-25. Copyright for this guide belongs to SuperGuide Pty Ltd, and cannot be reproduced without express and specific consent. Learn more

Response

  1. Thank you for the article it shows how important the 65 to 83+ years old period investment is.

    The 10/30/60 Rule is from the 1980 with 10-15% interest rates. If one includes the 4% fees from that era, the ratio Deposit/BeforeRetirement/AfterRetirement/Fees becomes:
    8/14/52/26
    If one assumes the current 5% interest and and taking into consideration fees.
    The ratio Deposit/BeforeRetirement/AfterRetirement/Fees become
    at 2% fees: 19/20/38/23
    at 4% fees: 22/18/26/35
    So the winner is Fees/Admin – we can reduce our on fees.
    The real problem is TAX of 15% on the input and accumulation phase.
    Doesn’t sound much but is huge.

    Dave
    PS If anyone is interested I would be please to send them the spreadsheet of the calculations.

Leave a Reply