How I’d try and turn £50k in savings into a £1m Stocks and Shares ISA

Thousands of people have reached the million mark in a Stocks and Shares ISA. Is it possible to join them starting with just £50k?

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.

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

Image source: Getty Images

When investing, your capital is at risk. The value of your investments can go down as well as up and you may get back less than you put in.

Read More

The content of this article is provided for information purposes only and is not intended to be, nor does it constitute, any form of personal advice. Investments in a currency other than sterling are exposed to currency exchange risk. Currency exchange rates are constantly changing, which may affect the value of the investment in sterling terms. You could lose money in sterling even if the stock price rises in the currency of origin. Stocks listed on overseas exchanges may be subject to additional dealing and exchange rate charges, and may have other tax implications, and may not provide the same, or any, regulatory protection as in the UK.

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.

If I had £50k in savings, I think it’s more than possible to turn it into £1m using a Stocks and Shares ISA. In this article, I’ll explain how I’d do it, along with how many years I think it could take.

First, let me say that I wouldn’t be the first person to pull off something like this. The number of ISA millionaires tripled last year. It’s now over 4,000 people. All of them used this type of account to get to a million.

In fact, a single stock could get there with an even smaller stake. Take Ashtead for instance. It might sound like a fairly boring company, renting out industrial equipment like diggers or scaffolds. But if I’d put £5,000 in it 15 years ago, it would have turned into £1m all by itself. Not too shabby. 

I could go one better with US tech giant Apple. The iPhone maker was another big winner in the last few years. I’d only have needed a £1,500 stake invested in 2003 to make it to the million mark. 

Simple idea

The idea here is simple. And it’s one I’d say most people understand. The stock market, while it has its risks, is a fantastic place for building wealth. It’s easy to see this every time there’s a headline of a company hitting record profits, and I can make it work in my favour by investing this way.

So how do I reach my target? Well, I’ve got £50k in my Stocks and Shares ISA and I want to get it to £1m. I need to choose companies that will grow my money. 

The examples above are particularly good ones but it’s not always like this. I might choose a company like Cineworld instead! The cinema chain racked up so much debt as it expanded, then the pandemic came along at just the wrong time. A £5,000 stake there a few years ago would now be worth, well, nothing at all.

The thing is, even good investors don’t get it right every time. So one cornerstone of my plan would be to diversify. I’d invest in many companies, at least 10-15, so a bad choice or two doesn’t destroy my earnings.

How long could it take?

How long might it take for the £50k to turn into £1m? Well, at a 10% average return each year the table below shows the specifics. Of course, I might not make 10% and could even lose money.

£50k with 10% yearly return
1 year£55,000
5 years£80,526
10 years£129,687
20 years£336,375
30 years£872,470
32 years£1,055,689

I’d look at that 32-year timeframe as a starting point as there are ways I can speed up the process.  I mentioned above how important good stock choices are. That’s one way.

I could also drip-feed extra cash into my ISA as well. That way, I have more money to play with. That’s how people tend to invest, rather than putting in a lump sum then never looking at it again. 

£3,000 a month

If I do make it to a million, I’d have the financial freedom I dream of. I could withdraw 4% for a £40,000 annual second income. Inflation would knock that down a little, but it would still be an amazing income to have each year.

Per month, it’s over £3,000, over triple the State Pension. That would be great security.

Should you invest, the value of your investment may rise or fall and your capital is at risk. Before investing, your individual circumstances should be assessed. Consider taking independent financial advice.

John Fieldsend has positions in Apple. The Motley Fool UK has recommended Apple. 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

Concept of two young professional men looking at a screen in a technological data centre
Investing Articles

Are National Grid shares all they’re cracked up to be?

Investors seem to love National Grid shares but Harvey Jones wonders if they’re making a clear-headed assessment of the risks…

Read more »

Investing For Beginners

Here’s what the crazy moves in the bond market could mean for UK shares

Jon Smith explains what rising UK Government bond yields signify for investors and talks about what could happen for UK…

Read more »

Investing For Beginners

Why it’s hard to build wealth with a Cash ISA (and some other options to explore)

Britons continue to direct money towards Cash ISAs. History shows that this isn't the best way to build wealth over…

Read more »

Growth Shares

I bought this FTSE stock to beat the index over the next 4 years

Jon Smith predicts that a FTSE share he just bought for his portfolio could outperform the broader market, based on…

Read more »

Investing Articles

The Sainsbury’s share price dips despite a bumper Christmas – it’s now cheap as chips

Harvey Jones says the Sainsbury's share price looks good value after today's results. He thinks it's worth considering for dividend…

Read more »

Young Caucasian man making doubtful face at camera
Investing Articles

Here are the official 2024 returns for the FTSE 100 and FTSE 250 (including dividends)

The Footsie did quite well in 2024, returning almost 10%. But the mid-cap FTSE 250 index generated lower returns, hurt…

Read more »

British flag, Big Ben, Houses of Parliament and British flag composition
Investing Articles

Why isn’t the promise of 1.5m more homes helping these FTSE 100 stocks?

The government wants Britain’s builders to help boost economic growth. So why are the FTSE 100’s construction stocks tanking?

Read more »

Investing Articles

3 great investment trusts to consider for a Stocks and Shares ISA in 2025

A good investment trust can act as a solid anchor for a Stocks and Shares ISA, helping investors maintain steady…

Read more »