Say goodbye to a fun-filled retirement if you’re one of the 7.8 million making this mistake

If you like the thought of beans on toast every day in retirement, don’t read this.

The content of this article was relevant at the time of publishing. Circumstances change continuously and caution should therefore be exercised when relying upon any content contained within this article.

You’re reading a free article with opinions that may differ from The Motley Fool’s Premium Investing Services. Become a Motley Fool member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn More.

Saving even a little amount each month is clearly more sensible than squandering the lot. But choosing to save rather than invest is arguably an even bigger mistake if:

a) you’re not planning on using that money for a big purchase anytime soon.

b) you’ve already managed to build up an ’emergency fund’ for when the boiler breaks.

c) you have many years or decades before you really need to see that money again. 

Trouble is, the majority of the UK population still rate savings accounts and Cash ISAs in particular.

Money was deposited into 7.8m of the latter with their soul-sapping interest rates in the 2017/18 fiscal year compared to 2.8m of the stocks and shares equivalent. 

That’s not a problem if you consider the prospect of beans on toast every day for decades a wonderful thought. Just keep saving.

If you have finer tastes, then I’d ditch the Cash ISA for three very simple reasons.

1. Inflation

The lovely feeling you get from knowing there’s surplus cash in your savings account beyond the aforementioned buffer is a high price to pay. Be aware that inflation is out to kill your retirement dreams.

Does that sound a bit dramatic to you? It really isn’t.

For as long as this is at a higher percentage than the interest your bank is paying you, the value of your money is falling. That’s not a nice thought over one year, but its an absolute nightmare for your wealth over the long term.

To illustrate, let’s assume that your savings account offers no interest (which, for some, isn’t far from the truth). Inflation at 2% every year for 20 years, would reduce £10,000 to £6,730 in real value.

2. Dividends

The wonderful thing about owning bits of companies is that it entitles you to a share of the profits.

Next time you’re in Tesco or Sainsbury’s or Morrisons, for example, understand that everyone around you paying for their groceries is indirectly helping to fund your eventual retirement, assuming you own the shares and reinvest what you receive back into the business (more on this in a second). 

What’s more, the dividend yields on many stocks are higher — and in some cases a lot higher — than the current rate of inflation.

While we’d avoid some of the biggest payers at the current time (a very large yield can suggest a likely cut in the future), that still leaves plenty of great businesses out there to invest in. 

3. Compounding

So, receiving cash from companies you own is great. Now combine it with the secret sauce in investing and we’re talking a very powerful mix.

That secret sauce is compounding or ‘interest on interest’. Simply put, the bigger this is, the better the end result will be for you.

Imagine that you invested £10,000 today and managed to achieve growth of 7% every year (a combination of stock markets rising in value and reinvested dividends) for those 20 years.

By 2039, that sum would be almost £39,000, based on my calculations. And that’s without any additional contributions on the way.

An extra £100 a month would increase this to almost £88,000. An extra £200 a month would bring this to just over £137,000. That’s the power of compounding.

Pause to consider this when you next go to make a deposit into your Cash ISA. 

Paul Summers has no position in any of the shares mentioned. The Motley Fool UK has recommended Tesco. Views expressed on the companies mentioned in this article are those of the writer and therefore may differ from the official recommendations we make in our subscription services such as Share Advisor, Hidden Winners and Pro. Here at The Motley Fool we believe that considering a diverse range of insights makes us better investors.

More on Investing Articles

piggy bank, searching with binoculars
Investing Articles

Prediction: Diageo shares could soar in the next 5 years if this happens…

Diageo shares have been in the doldrums for some years now. What on earth could waken this FTSE 100 dud…

Read more »

Investing Articles

With a P/E of 5.9 is this a once-in-a-decade opportunity to buy dirt-cheap easyJet shares?

Today marks a fresh low for easyJet shares, which are falling on a disappointing set of first-half results. Harvey Jones…

Read more »

Investing Articles

Think the soaring Tesco share price is too good to be true? Read this…

The Tesco share price keeps climbing. It's up again today, following a positive set of results, but Harvey Jones says…

Read more »

Artillery rocket system aimed to the sky and soldiers at sunset.
Investing Articles

BAE Systems shares are up 274% in 46 months. And I reckon there could be more to come

Our writer’s been learning about the state of Britain’s defence forces. And he thinks it could be good news for…

Read more »

Stack of British pound coins falling on list of share prices
Investing Articles

5 years ago, £5,000 bought 218 Greggs shares. How many would it buy now?

Greggs sells around 150m sausage rolls every year. But have those who bought the baker’s shares in April 2021 made…

Read more »

Woman riding her old fashioned bicycle along the Beach Esplanade at Aberdeen, Scotland.
Investing Articles

How big does an ISA need to be when aiming for a £500 monthly second income?

What sort of money would someone need to put into dividend shares if they were serious about targeting a £500…

Read more »

Hydrogen testing at DLR Cologne
Investing Articles

Up 1,119% in 65 months, is there anything left to say about Rolls-Royce shares?

Since the pandemic, Rolls-Royce shares have risen over 1,100%. What’s left to say? In fact, James Beard reckons there’s plenty…

Read more »

UK financial background: share prices and stock graph overlaid on an image of the Union Jack
Investing Articles

Why the UK might be the best place to look for growth stocks

Wise is preparing to move its primary listing to the US. But that's exactly why Stephen Wright is looking closer…

Read more »