We have some exciting news to share! The Motley Fool UK has now become The Twelfth Magpie -- an independent, UK-owned company, led by our long-serving UK management team — Mark Rogers, Chris Nials and Heather Adlington. In practical terms, it’s the same team you know, now fully focused on serving our UK readers and members.

Just as importantly, our approach remains unchanged: long-term, jargon-free, and on your side. This site is our new home, and there will be extra tweaks made across the coming few days as we settle in. So if anything looks a little off, please bear with us!

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.

Forget a Cash ISA. Here’s how I’d benefit from the stock market crash

In a FTSE 100 slump, many investors will rush for the safety of a Cash ISA. Here’s why I think that’s an especially bad idea right now.

You’re reading a free article with opinions that may differ from The Twelfth Magpie’s Premium Investing Services. Become a member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn more, and get a free 'Best Buy Now' stock!.

A Cash ISA isn’t a great investment at the best of times. In recent years, the best instant access interest rate you could get has been around 1.5%, or even lower. That’s been below inflation so, in real terms, a Cash ISA would actually lose you money. How does saving tax on the paltry return you do get compensate for that? Well, it simply can’t.

Right now, the Cash ISA situation is even worse, with instant access rates falling towards 1%. There’s even been speculation that interest rates could turn negative, with banks charging you for looking after your money. I don’t see things getting that bad, but what use is a 1% annual return from your investments?

Should you buy Rolls Royce shares today?

Before you decide, please take a moment to review this report first. Despite ongoing uncertainties from US tariffs to global conflicts, Mark Rogers and his team believe many UK shares still trade at substantial discounts, offering savvy investors plenty of potential opportunities to learn about.

That’s why this could be an ideal time to secure this valuable research – Mark’s analysts have scoured the markets to reveal 5 of his favourite long-term ‘Buys’. Please, don’t make any big decisions before seeing them.

The obvious rejoinder is that if you’d had your savings in a Cash ISA at the start of 2020, you’d have escaped the Covid-19 stock market crash. That much is true, certainly. And if you know how to predict the timing of the next crash then, by all means, switch to a Cash ISA just before it happens. Then switch back to shares just at the lowest point of the slump.

Of course, nobody can do that. And if you always keep your money in a Cash ISA as a precaution, you’re losing out on the much better returns that the stock market has historically provided. Long term, investing in UK shares has produced returns of 4.9% above inflation. That includes reinvesting all dividends in more shares.

If a Cash ISA is a poor long-term choice, then putting your money in one right now could be a significantly worse decision. So what is the best strategy for times like now? Let’s look at how the FTSE 100 has performed after previous crashes.

Cash ISA?

Back in early 2016, the UK was in something of a slump, with the Brexit referendum looming. The FTSE 100 hit a low in early February that year, after losing 1,600 points in the previous 12 months. Had you bailed out at that point and moved to a Cash ISA, you’d have pocketed your 1.5% or so over the next year. But you’d have missed out on a storming 24% recovery for the FTSE 100 in the following 12 months. But that’s just the rise in share prices. You’d have earned some dividend income too.

Now let’s look back further to the banking crisis of 2008. Over the course of a 12-month period to rock-bottom in March 2008, the FTSE 100 lost 40% of its value. The story is the same again, only better. Those unlucky enough to buy into a Cash ISA at the low point could only sit and watch Stocks and Shares ISA investors talking a 46% profit over the next year. Oh, and earned dividends again.

Familiar story

We can look back over the past century and the story is the same. Every time the FTSE 100 crashes, it comes storming back stronger. And usually relatively quickly. And over the really long term, the UK stock market has wiped the floor with any cash-based investment.

I’m not saying we’re out of the current crisis, and I do think there’s a reasonable chance we could see a double-dip FTSE 100 slump. But the evidence shows that a Stocks and Shares ISA is a much better bet than a Cash ISA. Especially when stock markets are down.

Views expressed 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

Night Takeoff Of The American Space Shuttle
Investing Articles

Up 15%, B&M shares are leading the FTSE 250 higher! Is the comeback on?

It's been a tough few years for battered retailer B&M and its shares. But is the FTSE 250 stock now…

Read more »

Affectionate Asian senior mother and daughter using smartphone together at home, smiling joyfully
Investing Articles

Growth AND dividends? Check out this top cheap penny share!

Looking to get maximum bang for your buck? Consider this white-hot UK penny share with an 11.5% dividend yield and…

Read more »

Smiling young man sitting in cafe and checking messages, with his laptop in front of him.
Investing Articles

Snowflake lit up my ISA last week. Could this AI stock be next?

Edward Sheldon’s ISA got a massive boost last week when Snowflake shares surged 40%. He believes there’s more to come…

Read more »

A senior man using hiking poles, on a hike on a coastal path along the coastline of Cornwall. He is looking away from the camera at the view.
Investing Articles

How much would you need in an ISA to match the new State Pension and get another £12,547 a year?

Harvey Jones says nobody should rely purely on the State Pension to fund retirement. They should also aim to generate…

Read more »

Rear view image depicting a senior man in his 70s sitting on a bench leading down to the iconic Seven Sisters cliffs on the coastline of East Sussex, UK. The man is wearing casual clothing - blue denim jeans, a red checked shirt, navy blue gilet. The man is having a rest from hiking and his hiking pole is leaning up against the bench.
Investing Articles

How much is £9,999 invested in a Cash ISA 9 years ago worth today?

Harvey Jones says the Cash ISA may look tempting but is likely to shrink the value of your money over…

Read more »

Female student sitting at the steps and using laptop
Investing Articles

Are Lloyds shares 23% undervalued?

Lloyds shares have fallen in value since a high reached earlier this year. Could this be a sign the FTSE…

Read more »

happy senior couple using a laptop in their living room to look at their financial budgets
Investing Articles

Here’s why Legal & General is still one of the UK’s most popular SIPP buys

So far in 2026, UK SIPP investors have largely stuck to the same group of favourite FTSE 100 stocks. And…

Read more »

Mature people enjoying time together during road trip
Investing Articles

How have Aviva shares become a dividend juggernaut? 5 reasons why

With a long record of dividend growth and enormous yields, Aviva's shares are in high demand with income investors. Can…

Read more »