Skip to main content

Investing Less, Earning More

Could investing $13,000 be better than investing $70,000? In this case, the answer seems to be yes.

In Making Money Made Simple, Noel Whittaker compares two hypothetical investors:

Person 1: Invests $ 1,000 a year from age 18-30.
Person 2: Invests $ 2,000 a year from age 30-65.

You might think that person 2 would be better off, but here's how it goes (in chart form):


Person 1 stops investing at 30, but their investment keeps growing. At that point, person 1's yearly growth is more than person 2's yearly contribution. That's why person 2 never catches up.

Person 1 ends up about $ 150,000 ahead, despite investing about one-fifth of what the person 2 invested.

What if growth isn't so good?

These calculations assume 10% growth. What if it isn't that high?

Fair point. I've run the numbers at lower rates of growth. At 9%, person 1 is still better off. At 8% it's close, and person 2 comes out slightly ahead. But that's not really the point.

One investment is one-fifth the size of the other (smaller contributions and a shorter time). The fact that this is anywhere near a close finish is mind-boggling.

Person 1 has earnt about 50 times their money back. For Person 2 it's less than 8 times. That's the benefit of starting early.

It's the tortoise and the hare

If you measure from when each person starts investing, person 2 does go up more quickly. But person 1 is further ahead because they started earlier and just kept going.

For instance, after 35 years of investing person 2 has about half a million. Person 1 had just $200,000 after 35 years of investing. It's a slower initial rate (like the tortoise) but because of the earlier start, they still had another twelve years of growth to come.

The maths of compound growth means that the bulk of the earnings come in the later years. The earlier the start, the more productive those later years can be.

What if I'm older?

If you're in your 30s or 40s, you might be cursing your luck. But the principle still holds for you - better to start now than wait until 55.

If you're 45 or older, perhaps show this concept to your teenager - if they're interested in making hundreds of thousands of dollars.

If you're a teenager or young adult, then congratulations. You have the most important asset. Time.

What else?

See more of my finance articles or get the monthly email for more stuff like this in the future.

Comments

  1. My mind is always blown when I see these comparisons! I'd love to see another version with actual ages taken out and replaced with "# of years of investing". Less disheartening for those of us who didn't start at 18. :)

    ReplyDelete
    Replies
    1. Hello Michelle.
      Yeah it's tricky. The purpose was to powerfully illustrate the specific example given in the book I'd read. I hoped converting the numbers into a timeline would graphically show that an early investor is always better off (at any point on the journey).
      I considered leaving off the numbers entirely, introducing a third person who doesn't start until 50 (to give heart to the 30 year-old reader) or having a 30-year old starter who catches up by investing even more. But none of these seemed as impactful and clear as the original point - so I stuck with that.
      I thought of making the horizontal axis "years of investing" but thought that would be confusing (as it would end at 47). A great deal of my point is that the early investor does just 13 years of (active) investing and never adds again - that compound growth does so much of the work.
      Having said all that I hope that the 30-something can still see that person 2 still gets a very juicy outcome, from a relatively tiny annual saving.
      I still have plenty more finance ideas up my sleeve for future articles, so I hope you've subscribed :) As someone who's definitely older than 18, I can assure you I'm very much thinking of people who are further along the journey, even if this article was most impactful for people too young to have ever seen a fax machine ;)

      Delete

Post a Comment

Popular posts from this blog

Your Money or Your Life

Which is more important? Our money or our life? So why do we trade away so much of our life? Vicki Robin's classic book takes an in-depth look at how we can have a better relationship with money. Here are some of my highlights, though there's so much more great value in the book. I found it so inspirational after reading the foreword and the first chapter. While the backbone of the book is a 9-step plan, there are two concepts that really stand out - even if you never start the plan. One is the idea of "life energy" and our "real hourly wage". The other is the point of enough. Life Energy What is money? Vicki Robin comes to the conclusion that it is a form of life energy. It might sound a bit new-age, but it's like the old business saying "time is money". We exchange our time, and our physical and mental energy to get this thing called money. So when we use it we are effectively spending our life. The exchange rate Spending money is almost like...

The real cost of owning a car

It's been about 10 years since I've owned a car. My wife doesn't own one either. "You must save a lot in petrol" That's one of the frequent reactions when someone discovers we don't own a car. "Of course, but it's just the tip of the iceberg" is the usual theme of my reply. Many people I've talked to just aren't fully aware of the real cost of owning a car. Or even that there are six different costs of owning a car. Six? Really? Yes. Occasionally a work colleague or friend will boast their car only costs $X per week. Of course it turns out only some factors have been counted. Sometimes it's just petrol alone. To some people, that feels like the only cost they pay each week. Why does this matter? You might be questioning the need for a second car in the household (or even having one at all). Or you might just be choosing which car to get next. Either way, to make an informed decision we need proper information. So let's look at...

Where is the best place to live?

Where we live determines a lot about our life.  So today I'm going to share a resource that can help you decide where might be a good place to live.  It started with an article ranking Brisbane suburbs from 1 to 260 . That ranking was based on a set of 17 factors. Here are some of them. But all 17 may not be relevant for you. And some might matter more than others. So they developed a tool where you can rank the 5 factors most important to you and it will give you a personalised list of Brisbane suburbs that would be the best for you - based on those factors. There are also  Sydney and Melbourne  versions. On the results page, there's also a map that colour-codes each suburb by star rating, for each factor. For instance here's the map for public transport. Five-star suburbs are in blue. When you click on a suburb, you get the name and the star rating of that suburb - for whichever factor you select. I find this to be so enlightening. I choose not to own a car. Some...