I’d invest £200 a month in a Stocks and Shares ISA to make a million

Setting up a monthly investment plan for a Stocks and Shares ISA can be a straightforward way to make a million by following these tips.

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.

Setting up a monthly investment plan to put £200 into a Stocks and Shares ISA may not necessarily produce high returns in the short run. 

However, over the long run, steadily feeding money into the stock market is a tried and tested way of building wealth. It could even help to make you a million at a time when few other mainstream assets offer attractive returns. 

Stocks and Shares ISA investing 

Opening a Stocks and Shares ISA is a very straightforward process. These accounts are virtually the same as a regular dealing account, although there are a few rules about what you can and can’t own.

For example, investors can only own stocks that trade on a recognised exchange in a Stocks and Shares ISA. This essentially means any stock that trades on a developed market stock index. That still leaves a universe of several thousand investments. 

If you’re planning to invest several hundred pounds a month into a Stocks and Shares ISA, the best strategy may not be to own individual stocks.

Instead, stock market funds might be a better option. These funds allow investors to buy a broad range of shares at the click of a button. What’s more, costs today have fallen to levels never before seen in the industry. 

The most basic type of fund is a simple stock market tracker. A market tracker, such as a FTSE 100 or FTSE 250 one, only tracks the underlying stock index. This means it’s highly unlikely that the fund will underperform the market, or buy illiquid investments, which later come back to haunt it. 

Steady returns 

Over the past three-and-a-half decades, the FTSE 100 has returned around 8% per annum. Meanwhile, the FTSE 250 has returned nearly 12%. Buying these funds today in a Stocks and Shares ISA might seem like a high-risk bet. Indeed, the near-term outlook for the stock market is highly uncertain.

However, the index has a sound track record of recovering from every one of its previous downturns. With that being the case, buying undervalued shares today could be a good move for investors with a long-term outlook. 

Make a million

Investing £200 a month in the FTSE 250 via a Stocks and Shares ISA could you help build a £1m nest egg over several years. At an annual rate of 12%, it would take 33 years of investing £200 a month to build a £1m ISA. 

This return might not come in a straight line. The index has seen many peaks and troughs over the past few decades. Still, as noted above, it has always recovered losses before going on to make new highs.

This is why it makes sense to use the index’s cyclicality to your advantage and set up a regular investing plan to buy stocks at low levels as well as high. Doing so could increase your chances of making a million in a Stocks and Shares ISA from the stock market.

Rupert Hargreaves 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

Investing Articles

Is 2026 the year the Diageo share price bounces back?

Will next year be the start of a turnaround for the Diageo share price? Stephen Wright looks at a key…

Read more »

Investing Articles

Here’s my top FTSE 250 pick for 2026

UK investors looking for under-the-radar opportunities should check out the FTSE 250. And 2026 could be an exciting year for…

Read more »

Yellow number one sitting on blue background
Investing Articles

Here’s my number 1 passive income stock for 2026

Stephen Wright thinks a 5.5% dividend yield from a company with a strong competitive advantage is something passive income investors…

Read more »

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

Should I sell my Scottish Mortgage shares in 2026?

After a strong run for Scottish Mortgage shares, our writer wonders if he should offload them to bank profits in…

Read more »

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

Down 35%! These 2 blue-chips are 2025’s big losers. But are they the best shares to buy in 2026?

Harvey Jones reckons he's found two of the best shares to buy for the year ahead, but he also acknowledges…

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

State Pension worries? 3 investment trusts to target a £2.6m retirement fund

Royston Wild isn't worried about possible State Pension changes. Here he identifies three investment trusts to target a multi-million-pound portfolio.

Read more »

Smiling white woman holding iPhone with Airpods in ear
Dividend Shares

4 dirt-cheap dividend stocks to consider for 2026!

Discover four great dividend stocks that could deliver long-term passive income -- and why our writer Royston Wild thinks they’re…

Read more »

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

These fabulous 5 UK stocks doubled in 2025 – can they do it again next year?

These five UK stocks have more than doubled investors' money as the FTSE 100 surges. Harvey Jones wonders if they…

Read more »