Stock market crash: I’d buy bargain FTSE 100 shares today to become an ISA millionaire

The FTSE 100 (INDEXFTSE:UKX) appears to contain a number of bargain UK shares that could have recovery potential after the market crash.

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.

The FTSE 100 is yet to fully recover from the market crash that wiped as much as a third of its value in the first quarter of the year. As such, a number of its incumbents appear to offer good value for money from a long-term investment perspective.

Through buying a selection of them, and holding on through what could prove to be a tough near-term outlook for the economy, investors may be able to generate surprisingly high returns. They may even be able to obtain an ISA valued at over £1m in the coming years.

Buying and holding FTSE 100 shares

One of the results of a market crash, and subsequent high volatility, is that investors in FTSE 100 stocks become short-term focused. In other words, they’re worried about their returns over a period of weeks, rather than years. This can mean they become risk averse. Or it can lead them to try and time the market to make a quick profit.

However, a short-term focus may not produce impressive returns. It’s difficult to time the market for profit, while other assets are unlikely to produce the level of returns offered by UK shares in the long run.

Therefore, it may be prudent to adopt a long-term approach when buying FTSE 100 stocks. The index’s past performance suggests this is a sound means of generating high returns. That’s because it’s always recovered from downturns to post new record highs. With many of its members still yet to fully recover from the recent market crash, there seems to be plenty of opportunities to benefit from a stock market recovery.

Becoming an ISA millionaire

The task of making a million from investing in the FTSE 100 is likely to be made easier when undertaken in a tax-efficient account, such as a Stocks and Shares ISA. The present annual dividend allowance of just £2,000 outside of an ISA, for example, means any investor seeking to build a seven-figure portfolio is likely to benefit from an ISA’s tax efficiency for a sustained period of time.

Of course, it’s still likely to take a long period of time to become an ISA millionaire through buying UK shares. However, purchasing undervalued shares after a market crash can help to quicken this process. Cheap stocks can produce surprisingly high returns as a recovery takes hold. And that may allow you to outperform the index’s long-term annual returns of around 8%.

There may yet be further volatility ahead for the FTSE 100 that causes paper losses in the short run. But, over the long run, there’s a high chance of generating strong capital returns. Therefore, buying cheap UK shares today in an ISA could be a profitable move. And one that may even lead to you becoming an ISA millionaire in the coming years.

Peter Stephens 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

British pound data
Investing Articles

The red lights are flashing again for Lloyds’ share price! Here’s why

Lloyds' share price continues to defy gravity. But Royston Wild thinks it's only a matter of time before the FTSE…

Read more »

Aston Martin DBX - rear pic of trunk
Investing Articles

Aston Martin shares are now only 41p!

Aston Martin shares just dropped to around the 41p mark! Is this a brilliant buying opportunity or a stock that…

Read more »

Artillery rocket system aimed to the sky and soldiers at sunset.
Investing Articles

Up 325% in 5 years! But are BAE System shares still a no-brainer buy?

BAE Systems shares would have been a brilliant buy five years ago. But could they still offer excellent returns if…

Read more »

Investing Articles

How much do you need to invest each month into FTSE 100 shares to aim for a million?

Simply by putting a few hundred pounds a month into FTSE 100 shares, how might someone aim to become a…

Read more »

Close-up as a woman counts out modern British banknotes.
Investing Articles

£10,000 invested in BAE shares at the beginning of 2026 is now worth…

Paul Summers tips his hat to those who invested in BAE Systems shares when markets opened back up in January.…

Read more »

A senior man and his wife holding hands walking up a hill on a footpath looking away from the camera at the view. The fishing village of Polperro is behind them.
Investing Articles

What size ISA do you need for £250-a-week retirement income?

Harvey Jones outlines the advantages of investing in a Stocks and Shares ISA rather than leaving money in cash, and…

Read more »

Mature Caucasian woman sat at a table with coffee and laptop while making notes on paper
Investing Articles

£5,000 invested in Legal & General shares 5 years ago is now worth…

Harvey Jones crunches the numbers to show how much an investor would have earned from Legal & General shares lately,…

Read more »

Investing Articles

Just check out the latest bumper forecasts for Lloyds, NatWest and Barclays shares

Harvey Jones says Barclays shares have had a terrific year and there could be more action to come. So what's…

Read more »