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 to target £1m by investing £750 a month in a Stocks and Shares ISA

Investing money regularly through a Stocks and Shares ISA can lead to major wealth in the long run, potentially even millions. Here’s how.

Young mixed-race woman jumping for joy in a park with confetti falling around her

Image source: Getty Images

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.

Making £1m in a Stocks and Shares ISA with only £750 a month may seem a little farfetched. That’s especially true, considering the recent bumpy ride the equity markets have been.

The short-term future of shares is clearly shrouded in uncertainty, given the ongoing economic problems facing the UK. However, in the long run, these issues are fairly negligible. After all, the stock market has a 100% track record of completely recovering from even the worst financial crises before reaching new heights.

XXX

Therefore, now could be the perfect time to start ramping up a portfolio while stocks are still cheap. In fact, doing this consistently every month can eventually lead to a millionaire territory. Here’s how.

Understanding the power of compounding

Looking at the FTSE 250, the UK’s growth index has delivered average annual returns of around 10.6% since its inception in 1992. It’s certainly been a volatile ride, with multiple crashes and corrections occurring during these 31 years.

But any investor who continued to top up their Stocks and Shares ISA each month at this rate of return is likely sitting on a tidy sum. In fact, investing £750 a month at this rate of return for three decades translates into a portfolio worth £2.15m!

Assuming the FTSE 250 continues to deliver these double-digit gains for the next 31 years, investors drip-feeding capital today could be in a far superior financial position in the long run. But with stocks currently trading at a discount, it might be possible to unlock even higher returns. And picking individual stocks instead of an index fund pushes this potential even further.

Even if a hand-crafted portfolio only musters an extra 2% in annualised gains, that’s enough to push the portfolio value up by another £1.25m, to a total of £3.41m!

Picking the right stocks for an ISA

The Stocks and Shares ISA is a fairly flexible investment account. Most grant access to the entire London Stock Exchange as well as international stock exchanges like the Nasdaq in the US. In other words, investors are spoilt for choice regarding where they can put their capital to work.

But just because it’s possible to buy shares in almost any company doesn’t necessarily mean that’s a good idea. In fact, most businesses either outright fail to meet expectations or run out of steam, dragging down a portfolio’s returns.

As such, a poorly constructed portfolio will likely struggle to match the returns of the stock market average, let alone beat it. It could even end up destroying wealth. And investors may end up with significantly less than expected when the time for retirement comes along. So how can investors avoid this pitfall on the path to becoming a millionaire?

Risk can never be entirely eliminated when it comes to investing. That’s because too many external factors are at play that investors and companies have no control over. However, that doesn’t mean risk can’t be reduced, or mitigated.

Carefully investigating and analysing a business can highlight strengths. But it also often reveals the weaknesses ahead of time, allowing investors to keep an eye on the most prominent threats.

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 »