ISA investing: here’s why I’m buying UK shares to retire in comfort!

We’re all looking to build a handsome nest egg for retirement, right? Well this is how I’m using ISAs so I can eventually retire in comfort.

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.

I don’t believe in investing my hard-earned cash in low-paying savings products like Cash ISAs.

Okay, I have a Cash ISA which I use for holding money temporarily before making a big purchase and for retaining emergency cash. But using this sort of product as a means of saving for retirement is a recipe for disaster, in my book. This is why the majority of the money I earn is used to buy UK shares in a Stocks and Shares ISA instead.

The pros and cons of Cash ISAs

Let’s look at the best-paying, instant-access Cash ISA currently on the market. According to moneysupermarket.com,  that’s the Marcus account from Goldman Sachs — offers an interest rate of just 0.5%.

The advantage of investing in a cash product over something like a Stocks and Shares ISA is of course that the £1 I choose to park in it will still be worth £1 in five, 10, even 50 years. Conversely, who knows what the £1 worth of shares I buy in my Stocks and Shares ISA will be worth decades from now. Stock markets go down as well as up and the value of my holdings could be worth considerably less that I’d be hoping for.

Poor returns

But here’s the problem with using a Cash ISA to try and retire in comfort. Those earning even a decent salary are unlikely to make enough to live out their post-retirement dreams with such low-yielding products.

Let’s say that someone aged 30 manages to squirrel away £300 a month for their retirement. Using that 0.5% from Marcus as an example, over the next 35 years, that person will have made £137,669.

That’s better than a hole in your pocket, clearly. But dig down a little deeper and that figure suddenly doesn’t look so enticing. Firstly, for those looking to buy an annuity (a monthly pension payment until death) that sort of figure would barely cover the basic cost of living.

According to Which?, a single person would need a retirement pot worth £123,365 to have an annual income of £13,000 through a combination of the State Pension and annuity payments.

Couple relaxing on a beach in front of a sunset

How to retire with cash to spare

And secondly, the amount I can expect to make with a Stocks and Shares ISA smashes what I’d likely end up with by saving in a Cash ISA. Let’s say that person invested £300 per month on UK shares instead. Over the same 35 years, they could expect to have built a retirement pot worth a much-improved £692,694.

That’s based on past form that shows the average long-term UK share investor makes an average annual return of 8%. This sort of pot would provide an annual income of £31,000 if an investor were to buy an annuity at the point of retirement, according to Which? And it would allow them to live a “luxurious retirement,” it says.

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

The Milky Way at night, over Porthgwarra beach in Cornwall
Investing Articles

£15,000 invested in red-hot Scottish Mortgage shares 1 month ago is now worth…

Scottish Mortgage shares are having a moment, and Harvey Jones says it's mostly down to its exposure to Elon Musk's…

Read more »

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

Are IAG shares the ultimate FTSE 100 volatility play? 

IAG shares ended last week on a high, and has held up pretty well during the Middle East crisis. But…

Read more »

Abstract 3d arrows with rocket
Investing Articles

Will the stock market go off like a rocket on Monday?

Middle East turmoil is yet to trigger a full-blown stock market crash. Harvey Jones says the recent recovery could have…

Read more »

Young mixed-race woman jumping for joy in a park with confetti falling around her
Investing Articles

Here’s what £15,000 invested in Taylor Wimpey shares on Thursday is worth today…

Investors holding Taylor Wimpey shares finally had something to celebrate on Friday as the beaten-down FTSE 250 housebuilder rallied. What…

Read more »

Three generation family are playing football together in a field. There are two boys, their father and their grandfather.
Investing Articles

How much would it take to turn an ISA into a £1,000-a-month passive income machine?

Focusing on dividend shares in well-known, big companies, what would it take for someone to target a four-figure monthly passive…

Read more »

Female Tesco employee holding produce crate
Investing Articles

2 reasons a stock market crash could be a good thing!

Our writer does not know when the next stock market crash might arrive. But he hopes that, whenever it does,…

Read more »

Close-up image depicting a woman in her 70s taking British bank notes from her colourful leather wallet.
Investing Articles

How much do I need in a Stocks and Shares ISA to target a £13,400 annual income?

£13,400 is the minimum required income for retirement. But how big does a Stocks and Shares ISA need to be…

Read more »

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

Want to aim for £31,353 more than the State Pension? A SIPP could be the answer

The State Pension offers a safety net, but here’s why you could consider a Self-Invested Personal Pension (SIPP) for a…

Read more »