Make a million from the stock market crash! Buy FTSE 100 shares tax-free in an ISA

Don’t fear the stock market crash. This could be your opportunity to buy bargain FTSE 100 shares and build a million-pound portfolio, free of tax.

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.

Most people assume a stock market crash destroys their wealth which, of course, it does… in the short term. However, investing is a long-term game. If you view it that way, then a crash actually helps you get richer.

It could turbo-charge your quest to build a million-pound portfolio, and retire at a time of your choosing. Every stock market crash throws up plenty of FTSE 100 bargains. Buy them today and you’ll be rewarded when the recovery finally comes. It will, eventually, but could take time.

Nobody makes a million on the stock market overnight. The process takes years. However, if you’re investing for retirement, you have your working lifetime to build your wealth. You will see plenty of stock market crashes in that time. And the Motley Fool‘s advice will always be the same. Buy shares while they’re cheap.

The younger you start investing, the better. A 25-year-old who put away £500 a month and generated the average FTSE 100 long-term return of 6.5% after charges would have £1.12m by age 65, if they reinvested all their dividends.

Use the stock market crash wisely

The later you start, the harder it gets. If you invest £500 a month from age 35, you’ll have £551,935 at 65, assuming 6.5% growth. It isn’t a million, but it’s still a tidy sum. You can accelerate your plans by paying in lump sums at times like these. 

Today may seem like a scary time to invest in the FTSE 100. We’ve just had one stock market crash, and maybe due another. The Covid-19 pandemic is wreaking unprecedented damage and is far from over. So should you hold off and see what happens next?

The problem is nobody knows where share prices will go next. In January, few anticipated the March crash. At the depth of the meltdown, when the FTSE 100 fell below 5,000, few predicted the subsequent recovery. 

If you hold off waiting for the perfect time to invest, you’ll never put money into the stock market at all. And certainly won’t get close to making that million.

Choose FTSE 100 bargains wisely

So what can you do? While nobody can see the future, everybody has the power of hindsight. Looking back on the crash, you can see the stock market is down almost 25% from its January peak. So, today, you’re picking up stocks at reduced prices, just like you might buy clothes in the sales.

Choose your stocks carefully though. Some companies are now incredibly risky, such as cruise liners and high street retailers.

Look for companies that generate plenty of cash, have minimal debt, and offer a product or service that people appreciate, even in a recession.

It helps if they pay generous dividends too. Many companies still do.

Remember to invest inside a Stocks and Shares ISA. That way you can take your your capital growth and income free of tax, for life.

Even if you never make a million, you’ll still have more money than if you never tried it all. Don’t fear the stock market crash – use it.

Harvey Jones 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

Can someone invest like Warren Buffett with a spare £500?

Christopher Ruane explains why an investor without the resources of billionaire Warren Buffett could still learn from his stock market…

Read more »

Investing Articles

Can these 2 incredible FTSE 250 dividend stocks fly even higher in 2026?

Mark Hartley examines the potential in two FTSE 250 shares that have had an excellent year and considers what 2026…

Read more »

Thoughtful man using his phone while riding on a train and looking through the window
Investing Articles

Is 45 too late to start investing?

Investing at different life stages can come with its own challenges -- and rewards. Our writer considers why a 45-year-old…

Read more »

Hand of person putting wood cube block with word VALUE on wooden table
Investing Articles

UK shares look cheap — but the market might be about to take notice

UK shares have traded at a persistent discount to their US counterparts. This can create huge opportunities, but investors need…

Read more »

Investing Articles

This FTSE 100 growth machine is showing positive signs for a 2026 recovery

FTSE 100 distributor Bunzl is already the second-largest holding in Stephen Wright’s Stocks and Shares ISA. What should his next…

Read more »

Investing Articles

I asked ChatGPT for the best FTSE 100 stocks to buy for passive income in 2026 and it said…

Paul Summers wanted to learn which dividend stocks an AI bot thinks might be worth buying for 2026. Its response…

Read more »

ISA Individual Savings Account
Investing Articles

Stop missing out! A Stocks and Shares ISA could help you retire early

Investors who don't use a Stocks and Shares ISA get all the risks that come with investing but with less…

Read more »

Investing Articles

Will Greggs shares crash again in 2026?

After a horrible 2025, Paul Summers takes a look at whether Greggs shares could sink even further in price next…

Read more »