Forget Cash ISAs! I’ll be building a £1m Stocks and Shares ISA with UK shares in 2021

I don’t care about the stock price crash of 2020. I plan to continue buying UK shares rather than park my money in a Cash ISA. Here I explain why.

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.

When investing, your capital is at risk. The value of your investments can go down as well as up and you may get back less than you put in.

Read More

The content of this article is provided for information purposes only and is not intended to be, nor does it constitute, any form of personal advice. Investments in a currency other than sterling are exposed to currency exchange risk. Currency exchange rates are constantly changing, which may affect the value of the investment in sterling terms. You could lose money in sterling even if the stock price rises in the currency of origin. Stocks listed on overseas exchanges may be subject to additional dealing and exchange rate charges, and may have other tax implications, and may not provide the same, or any, regulatory protection as in the UK.

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.

It might seem mighty tempting to stash your savings in a Cash ISA today. UK share markets have endured a wild time in 2020 as the coronavirus crisis has persisted. As a consequence a great many stock pickers have seen the value of their investments fall off a cliff.

None of this matters to me, however. Nor does the possibility of more volatility in 2021. I’ll continue to invest in my Stocks and Shares ISA despite the gloomy economic outlook.

Cash vs UK shares

Fans of cash products like Cash ISAs like the peace of mind that they apparently provide. If I invested £20,000 at the start of the year I’d still have that (possibly some accrued interest, too) to call upon today.

Image of person checking their shares portfolio on mobile phone and computer

Let’s say I’d invested in something like a FTSE 100 tracker fund instead. Britain’s blue chip UK share index is down 16% from the start of 2020. This means that my £20,000 on 1 January would have been whittled down to approximately £16,800. Plummeting dividend payments in 2020 mean that income flows from that tracker wouldn’t have taken much of the sting out of that huge fall either.

Awful cash returns

This would cause a colossal problem if I wanted to draw on that cash today. But I don’t. I buy UK shares with a view to holding them for at least a decade. Over this sort of timeframe it’s been proven that products like Stocks and Shares ISAs provide much meatier returns than their cash equivalents.

Interest rates from Cash ISAs over the past decade have lagged their historical norms by a large distance. And things have taken a turn for the worse this year as Threadneedle Street cut rates to record lows following the economic downturn.

As a consequence, the best-paying instant-access Cash ISA on the market offers an interest rate of just 0.95%. It’s unlikely that rates will improve from Cynergy Bank’s market-leading product any time soon, either. Ultra-low Bank of England benchmark rates appear here to stay. It’s possible they might even turn negative. This is why investing in UK shares is a much better way to use one’s cash today.

Sticking with stocks

Let’s assume that Cynergy Bank’s rates remain in place for the next decade. Someone who saves £300 a month in that Cash ISA can expect to make around £37,740 in that time.

By comparison, someone who invested that money in UK shares could have expected to have made as much as £59,960 by 2031. This is because the average yearly return sits at between 8% and 10% for long-term investors.

But that £22,000-plus difference is chicken feed compared to the gulf that can emerge after three-and-a-half decades of saving. A Cash ISA saver aged 30 can expect to have made around £149,300 by the time they’re 65, based on that 0.95% interest rate. They could have made a cool £1.02m if they’d invested that £300 a month in a Stocks and Shares ISA instead. It’s no exaggeration to describe the difference between those two sums as life changing.

As I say, 2020 has been a tough time for UK share pickers. But the economy will bounce back eventually and so will stock markets. In fact, those that invest after the recent stock market crash can supercharge their returns. Experts like The Motley Fool are here to tell you how.

Should you invest, the value of your investment may rise or fall and your capital is at risk. Before investing, your individual circumstances should be assessed. Consider taking independent financial advice.

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

Fireworks display in the shape of willow at Newcastle, Co. Down , Northern Ireland at Halloween.
Investing Articles

The Anglo American share price soars to £25, but I’m not selling!

On Thursday, the Anglo American share price soared after mega-miner BHP Group made an unsolicited bid for it. But I…

Read more »

Investing Articles

Now 70p, is £1 the next stop for the Vodafone share price?

The Vodafone share price is back to 70p, but it's a long way short of the 97p it hit in…

Read more »

Concept of two young professional men looking at a screen in a technological data centre
Investing Articles

If I’d put £5,000 in Nvidia stock at the start of 2024, here’s what I’d have now

Nvidia stock was a massive winner in 2023 as the AI chipmaker’s profits surged across the year. How has it…

Read more »

Light bulb with growing tree.
Investing Articles

3 top investment trusts that ‘green’ up my Stocks and Shares ISA

I’ll be buying more of these investment trusts for my Stocks and Shares ISA given the sustainable and stable returns…

Read more »

Investing Articles

8.6% or 7.2%? Does the Legal & General or Aviva dividend look better?

The Aviva dividend tempts our writer. But so does the payout from Legal & General. Here he explains why he'd…

Read more »

a couple embrace in front of their new home
Investing Articles

Are Persimmon shares a bargain hiding in plain sight?

Persimmon shares have struggled in 2024, so far. But today's trading update suggests sentiment in the housing market's already improving.

Read more »

Market Movers

Here’s why the Unilever share price is soaring after Q1 earnings

Stephen Wright isn’t surprised to see the Unilever share price rising as the company’s Q1 results show it’s executing on…

Read more »

Investing Articles

Barclays’ share price jumps 5% on Q1 news. Will it soon be too late to buy?

The Barclays share price has been having a great time this year, as a solid Q1 gives it another boost.…

Read more »