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.

How I’d invest £500 per month in cheap FTSE 100 shares in an ISA to get rich and retire early

Buying FTSE 100 (INDEXFTSE:UKX) shares in a Stocks and Shares ISA could lead to high returns that may even help you to retire early.

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.

Investing £500, or any other amount, each month in a diverse range of FTSE 100 shares in an ISA could help to bring your retirement date a step closer.

Certainly, there are risks facing investors. They include political risks in the US and UK, as well as the prospect of a continued rise in coronavirus cases worldwide.

XXX

However, through buying financially-sound businesses that have the potential to enjoy improving operating conditions over the long run, you could build a surprisingly large retirement nest egg.

FTSE 100 growth opportunities

At the present time, it is difficult to assess which FTSE 100 sectors could offer the strongest growth opportunities over the long run. After all, coronavirus and the subsequent lockdown may have fundamentally changed a number of industries.

However, long-term growth trends may be intact for a number of industries. For example, an ageing world population means that demand for healthcare goods and services may rise. As such, investing in large-cap pharmaceutical, consumer healthcare and medical devices companies could prove to be a shrewd move. They may experience resilient (and high) growth rates in the coming years.

Similarly, online retailers could experience rising demand for their products as consumers continue to switch from in-store to web sales. Other FTSE 100 sectors such as banking, consumer goods and resources may also experience stronger trading conditions than investors are currently pricing-in. this may present good value buying opportunities, with many of those businesses trading below their long-term average valuations.

Financial strength

As well as buying FTSE 100 shares that offer strong long-term growth potential, purchasing businesses with sound finances could be a shrewd move in the present economic climate. They may be more likely to survive what could be a difficult period for the global economy. They may also have the potential to use low asset valuations to improve their market position through acquisitions.

Companies with low debt and access to significant amounts of liquidity may be lower-risk than their peers. This could put them in a position of strength in an uncertain economic period, and may allow them to command higher valuations as the world economy recovers.

Diversification

As ever, it is important to diversify when investing in FTSE 100 shares. Some companies and sectors may struggle to mount a sustained comeback after recent economic events. Therefore, reducing your reliance on them through owning a wide range of companies is a logical step for any investor to take.

Since the cost of sharedealing is now much lower than it ever has been, building a diverse portfolio of shares is an achievable goal for the vast majority of investors. It could improve your portfolio’s risk/reward ratio, and help you to build a surprisingly large nest egg that helps you to retire early.

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

Friends and sisters exploring the outdoors together in Cornwall. They are standing with their arms around each other at the coast.
Investing Articles

£503 buys 14 shares in this FTSE 250 stock that returned 23.9% annually for the last 15 years

This FTSE 250 stock has averaged a huge return for 15 years. At today's price, £503 buys 14 shares. But…

Read more »

Black woman using loudspeaker to be heard
Investing Articles

£1,000 buys 25 shares in this FTSE 100 stock that’s returned 29.2% annually for the last 10 years

This FTSE 100 mining stock has returned close to 30% a year for a decade. At 3,995p, £1,000 buys 25…

Read more »

Female student sitting at the steps and using laptop
Investing Articles

Down 47%, is this growth stock finally worth buying in May?

With a £288m order book and a hidden pipeline of defence and nuclear contracts, is this growth stock now too…

Read more »

House models and one with REIT - standing for real estate investment trust - written on it.
Investing Articles

2 REITs yielding 7%+ to consider for passive income in 2026

A REIT backed by the NHS and another backed by Tesco and Sainsbury's with both yielding 7%+. Here's why I'm…

Read more »

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

Just 97 shares of this UK dividend stock generate £238 in passive income

A 5.7% yield, £238 in passive income from just 97 shares, and one of the most divisive dividend stocks on…

Read more »

ISA coins
Investing Articles

£10,000 in an ISA generates a second income of…

The London Stock Exchange is home to some of the world's most generous dividends. But how big a second income…

Read more »

Shot of a senior man drinking coffee and looking thoughtfully out of a window
Investing Articles

Expert recommendations: 2 top income stocks yielding 7%+!

With yields of 7.2% and 7.8% respectively, these two income stocks are catching the eyes of institutional analysts. Should investors…

Read more »

Illustration of flames over a black background
Investing Articles

3 top income-focused stocks to buy in May 2026, according to experts

Looking for a stock to buy for income in May 2026? Experts have flagged these three UK dividend shares as…

Read more »