How I’d invest £25k in a Stocks and Shares ISA to make a million

With a sum like £25k, you can do something great. Here’s how I’d proceed.

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.

£25k is a decent pile of cash, and if you suddenly find yourself in possession of such a sum, you have a shot at doing something great with it.

And the great thing I’d try to do would be to turn it into £1m. With that amount of money, I’d really have some options!

Two important factors

To make the money work hard for me I’d aim to compound the returns it earns. Two factors would influence the eventual outcome. Firstly, the annualised percentage return I can achieve, and the higher the better. Little differences in that percentage can make big differences to the final sum over time.

And time itself is the second factor. The longer I can earn those annualised returns, the bigger the compounded sum will become. And because compounding works exponentially with accelerating returns over time, the biggest absolute returns will arrive in the later years. You could be amazed by how much you’re earning on your investments each year after a few decades of consistent compounding.

So, I’m looking for high annualised returns and a long investing period. And I know that, historically, the highest returns among all the major asset classes have come from stocks and shares. Over the long haul, shares have outpaced things such as cash savings, bonds, property and commodity prices.

Tax-efficient wrappers

It’s shares and share-backed investments all the way, for me. But where should you start? I’d begin by considering the tax advantages of investing in a Stocks and Shares ISA and pension schemes such as a Self-Invested Personal Pension (SIPP). Such ‘wrappers’ can make a good home for your investments.

Pensions, for example, boost your money on the way in because the tax relief on your pension contributions means the money you would have paid in tax on your earnings goes into your pension pot rather than to the government. And ISA accounts allow you to withdraw the money in the end without being taxed on it, so it’s tax relief on the way out.

Capturing stock market returns

To capture the returns available from the stock market you could invest in managed funds, which are run by an investment manager or a team of professionals who aim to beat their benchmark with their share picking. But the ongoing fees can be quite high and there’s no guarantee that the fund’s performance will be any good. Sometimes it can be disastrous, such as with the Woodford funds recently.

You could go down the passive index tracker route. These are low-cost funds that mechanically aim to mimic the returns of indices such as the FTSE 100, FTSE 250, S&P 500 and many others. And you could also aim to juice up your overall returns with some careful individual share picking of your own.

I reckon it would be a reasonable strategy to spread your £25k between active funds, passive funds, and individual shares as long as you avoid speculative and high-risk investments of all kinds. Remember, if you lose it, you can’t compound it!

Kevin Godbold has no position in any share 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

Black woman using loudspeaker to be heard
Investing Articles

A SIPP opened at birth could be worth £10m in 55 years

The SIPP is an incredible vehicle for building wealth and saving for retirement. Many Britons just don't realise how early…

Read more »

Young Caucasian woman at the street withdrawing money at the ATM
Investing Articles

2 passive income ideas for a Stocks and Shares ISA

Looking for passive income stocks in April? Here are two high-quality FTSE 250 dividend shares to consider buying for an…

Read more »

Front view of aircraft in flight.
Investing Articles

£5,000 invested in Wizz Air shares 2 days ago is now worth…

This week has been a rather good one for beaten-down Wizz Air shares. What would have happened to a £5,000…

Read more »

Road trip. Father and son travelling together by car
Investing Articles

How much do you need in an ISA for £1,000 a week in passive income?

Ben McPoland highlights a FTSE 250 stock down by more than 25% that offers good value and an attractive 5.5%…

Read more »

A row of satellite radars at night
Investing Articles

Is Elon Musk about to send this FTSE 100 stock into orbit?

This year is shaping up to be a big one for this FTSE 100 stock and part of the reason…

Read more »

Petrochemical engineer working at night with digital tablet inside oil and gas refinery plant
Investing Articles

Up 50% in a month! Meet Quadrise, the soaring UK penny stock that offers an alternative to oil

Mark Hartley takes a closer look at a British penny stock that envisions a future less dependent on crude oil.…

Read more »

Senior couple crossing the road on a city street. They are walking with shopping bags while Christmas shopping.
Investing Articles

How much do I need in a SIPP for a £500 monthly passive income?

Looking to earn a reliable passive income from your SIPP? Royston Wild explains how this could be possible with some…

Read more »

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

A P/E ratio of less than 7. Is this a red-hot value share to consider now?

James Beard uses a popular tool to identify a UK share that’s potentially undervalued. But he reckons judgement is also…

Read more »