Share your opinion and earn yourself a free Motley Fool premium report!

We are looking for Fools to join a 75 minute online independent market research forum on 15th / 16th December.

To find out more and express your interest please click here

Forget a Cash ISA! I think buying UK shares is a better way to get rich and retire early

Want to make serious money on your savings? Investing in UK shares is the best way to build a big nest egg for retirement, says Royston Wild.

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.

Savings levels in the UK have just hit an all-time high. Between April and June British households saved around £3 out of every £10 that they earned, according to the Bank of England. But are citizens making the most of their saved cash by buying UK shares?

Financial products like Cash ISAs remain white hot right now. Britons are using the cash they’ve built up during Covid-19 lockdown periods to save some excess capital for a rainy day. This is clearly a very sensible idea as the UK economy suffers its worst economic downturn for three centuries.

However, it’s likely that a huge number of savers are using Cash ISAs because the tough economic outlook is discouraging them from buying riskier assets like UK shares. The straightforward and effort-free way of saving in something like this is also massively appealing to lots of savers.

Hedge shaped as the pound symbol inside a glass piggy bank

You’re better off with UK shares

You may also consider the Cash ISA as a great investment vehicle in which to hold your money today. I think that saving the bulk of your money in one of these is a shocking mistake though. It’s not because your cash isn’t really safe due to the ravages of inflation as consumer price inflation (or CPI) currently sits at five-year lows around 0.2%. Though of course, CPI is likely to rise once Covid-19 lockdowns become history and people start spending again.

It’s that people stuffing their money in Cash ISAs to save for the future rather than just holding emergency cash are losing the chance to make a fortune with UK shares instead. History shows us that long-term UK share investors make an average annual return of at least 8% a year. Compare that with the paltry interest rates that even the best-paying instant access Cash ISA pays. According to money comparison site comparethemarket.com, this sits at a pathetic 1% (in a product offered by Cynergy Bank).

£423k or £126k? It’s your choice!

Choosing to saving in a Cash ISA instead of buying UK shares in a Stocks and Shares ISA could cost you the chance of building a big nest egg for retirement. It is also likely to leave your hopes of retiring early in tatters.

Using that 1% interest rate as a rough guide, someone who invests £300 a month for 30 years in a Cash ISA can expect to have made around £126,000. It’s not bad. But total interest of £17,800 isn’t a great return on total savings of £108,000 and three decades of hard saving. Had they used that £300 a month to buy UK shares instead they’d have made at least £423,000 based on those proven rates of return.

This is why I’ve continued to buy UK shares in my own Stocks and Shares ISA instead of taking the easy route with a Cash ISA. As a long-term investor I’m confident that my hard-saved cash will deliver spectacular returns in the years ahead and help me enjoy a comfortable retirement.

Royston Wild has no position in any of the shares mentioned. The Motley Fool UK has no position in any of the shares mentioned. 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

Warren Buffett at a Berkshire Hathaway AGM
Investing Articles

3 Warren Buffett investing ideas I plan to use in 2026

After decades in the top job at Berkshire Hathaway, Warren Buffett is preparing to step aside. But this writer will…

Read more »

Close-up of a woman holding modern polymer ten, twenty and fifty pound notes.
Investing Articles

Looking to earn a second income next year (and every year)? Here’s one approach.

Christopher Ruane explains how some prudent investment decisions now could potentially help set someone up with a second income in…

Read more »

Senior woman potting plant in garden at home
Investing Articles

Could a 10%+ yielding dividend share like this make sense for a retirement portfolio?

With a double-digit percentage yield, could this FTSE 250 share be worth considering for a retirement portfolio? Our writer weighs…

Read more »

Black woman using smartphone at home, watching stock charts.
Investing Articles

Forget Rigetti and IonQ: here’s a quantum computing growth stock that actually looks cheap

Edward Sheldon has found a growth stock in the quantum computing space with lots of potential and a really attractive…

Read more »

UK money in a Jar on a background
Investing Articles

Here’s a £3 a day passive income plan for 2026!

Looking for a simple and cheap plan to try and earn passive income in 2026 and beyond? Christopher Ruane shares…

Read more »

Blue NIO sports car in Oslo showroom
Investing Articles

NIO stock’s down 35% since October. Time to buy?

NIO stock has had a roller coaster year so far! Christopher Ruane looks at some of the highs and lows…

Read more »

Investing Articles

By December 2026, £1,000 invested in BAE Systems shares could be worth…

Where will BAE Systems shares be in a year's time? Here is our Foolish author's review of the latest analyst…

Read more »

Mature people enjoying time together during road trip
Investing Articles

Keen for early retirement with a second income from dividends? Here’s how much you might need to invest

Ditching the office job early is a dream of many, but without a second income, is it possible? Here’s how…

Read more »