40 and no pension? Here’s what £400 a month in a Stocks and Shares ISA could become

It’s never too late to start investing for retirement. Here’s how regular contributions to a Stocks and Shares ISA could balloon over time.

| More on:

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.

ISA Individual Savings Account

Image source: Getty Images

A Stocks and Shares ISA is a popular option for UK investors looking to build extra income for retirement. The tax-free allowance means investors can sink up to £20k per year into the account with no tax on the capital gains.

That’s probably a bit more than most people can afford to squirrel away each year. But no worries, even £400 a month can quickly add up to a lot due to the miracle of compounding returns.

Here’s one strategy a late but highly motivated investor could use to aim for a comfortable retirement.

Please note that tax treatment depends on the individual circumstances of each client and may be subject to change in future. The content in this article is provided for information purposes only. It is not intended to be, neither does it constitute, any form of tax advice. Readers are responsible for carrying out their own due diligence and for obtaining professional advice before making any investment decisions.

Diversified risk

A self-directed ISA brings with it a certain level of responsibility regarding risk. Unlike a Cash ISA, the investor needs to navigate their own path to ensure positive growth.

However, the potential for higher returns is much greater. The key is to balance risk and reward. One way to do this is through a diversified mix of stocks, funds, and investment trusts.  

Take Scottish Mortgage Investment Trust (LSE: SMT), for example. This highly diversified trust provides exposure to almost 100 stocks from a range of different countries.

Its core focus is on leading tech giants such as Nvidia, Meta, and TSMC. However, it’s also enthusiastic about global e-commerce, opting not only for popular choices like Amazon and Shopify but also smaller outfits like Sea Limited, DoorDash, and even private equity like Rappi.

Being heavily weighted towards US tech stocks is a moderate risk and one that’s resulted in volatility before. Since suffering a sharp drop in 2022, the fund has been trading at a discount to its net asset value (NAV). That means investors get exposure to all listed stocks at a price cheaper than buying them individually.

In February 1995, the shares were changing hands at a meagre 42p a pop. Fast-forward 30 years and they’re now valued at 1,087p. That equates to an annualised growth of 11.45%.

That’s somewhat higher than average for UK stocks. However, it’s realistic to aim for annual growth of 10% with a decent portfolio of stocks. After all, the FTSE 100 returned 9.5% last year.

Retirement goals

By investing £400 a month into an ISA with an average return of 10%, the pot could grow to over £535,000 in 25 years. That’s from only £120,000 invested (£400 x 12 x 25). At that point, the investor could begin drawing down approximately £53,500 a year — a sizeable pension pot to live off!

Even if performance tapered off to a below-average return of only 5%, it could still grow to nearly £240,000. In a strong portfolio of dividend stocks with an average 7% yield, that would return £16,800 a year.

Most likely, the final amount would fall somewhere in between these two extremes. In a standard rate Cash ISA, the pot would barely grow to above £200,000.

The above example shows how a lack of pension at 40 is not a life sentence. It’s never too late to start working towards a comfortable future. However, it will require a dedicated savings plan and a large monthly contribution.

John Mackey, former CEO of Whole Foods Market, an Amazon subsidiary, is a member of The Motley Fool’s board of directors. Randi Zuckerberg, a former director of market development and spokeswoman for Facebook and sister to Meta Platforms CEO Mark Zuckerberg, is a member of The Motley Fool's board of directors. Mark Hartley has positions in Scottish Mortgage Investment Trust Plc. The Motley Fool UK has recommended Amazon, Meta Platforms, Nvidia, Sea Limited, Shopify, and Taiwan Semiconductor Manufacturing. 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

Mature black woman at home texting on her cell phone while sitting on the couch
Investing Articles

Could this cheap FTSE 100 stock be the next Rolls-Royce?

Paul Summers casts his eye over a battered-but-high-quality FTSE 100 stock. Is this the next top-tier company to stage a…

Read more »

ISA Individual Savings Account
Investing Articles

Hesitant over a Stocks and Shares ISA? Here’s a way to deal with scary markets

Volatile stock markets are scaring potential investors away from getting started with their first Stocks and Shares ISA in 2026.

Read more »

This way, That way, The other way - pointing in different directions
Market Movers

Standard Life’s announced a £2bn deal but its share price is largely unchanged. Why?

James Beard considers why the Standard Life share price didn’t take off today (15 April) after the group announced it…

Read more »

Happy parents playing with little kids riding in box
Investing Articles

Up 12% in a month, Hollywood Bowl is a UK dividend stock on a roll

This 5%-yielding dividend stock was one of the top performers in the FTSE 250 index today. What sent it flying…

Read more »

Close-up of children holding a planet at the beach
Investing Articles

Young investors are taking the stock market on a rollercoaster ride. Here’s how retirees can buckle up

Mark Hartley reveals the volatile impact that younger investors are having on the stock market and how UK retirees can…

Read more »

Two female adult friends walking through the city streets at Christmas. They are talking and smiling as they do some Christmas shopping.
Investing Articles

£7,500 invested in Aviva shares 5 years ago is now worth…

A lump sum pumped into Aviva shares half a decade ago has grown a lot. Andrew Mackie looks at the…

Read more »

Young female hand showing five fingers.
Investing Articles

Could £20,000 invested in these 5 dividend shares produce £14,760 of passive income over the next 10 years?

James Beard considers the potential of dividend shares to deliver amazing levels of passive income. Here are five that have…

Read more »

Workers at Whiting refinery, US
Investing Articles

At 570p, is it too late to consider buying BP shares?

Since the end of February, when the conflict in the Middle East started, BP shares have soared nearly 20%. But…

Read more »