£9k in savings? Placing it here could maximise an investor’s second income in retirement

Saving money for later life seems like a smart idea. But I believe this strategy could seriously compromise one’s chances of retiring comfortably.

| 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.

Storytelling image of a multiethnic senior couple in love - Elderly married couple dating outdoors, love emotions and feelings

Image source: Getty Images

Someone with spare cash may see savings accounts as a no brainer option for their money. With interest rates well above their 10-year average, products like the Cash ISA can provide savers with a decent second income without them having to put their cash in danger.

Someone who parks £9,000 in a 5%-paying instant access Cash ISA knows their balance will never fall below this level. And unless the savings rate changes, they will bank £450 in interest.

Over 30 years, their balance would grow to £40,210, assuming that they make no withdrawals in that time. If they put their cash in a higher-yielding fixed term Cash ISA, they could make even more.

Yet, while their initial balance is protected, investing in a savings account isn’t risk free. In fact, prioritising one of these financial products over, say, a Stocks and Shares ISA, could end up wrecking their chances of retiring in comfort.

Poor returns

This is because, for most people, the return on a savings account is unlikely to provide a substantial enough passive income in later life.

Let’s say that a saver parks £9,000 in a Cash ISA, and adds £350 to it each month for 30 years. After this period, they’d have a balance of £331,500, which would then provide a £13,260 annual second income, assuming they drew down 4% from their savings each year.

Even with the State Pension added, this is unlikely to allow the saver to retire comfortably. The Pension and Lifetime Savings Association (PLSA) puts the exact figure they’d need each year for a comfortable retirement at £43,100.

A better option

A better option could be to hold a Cash ISA, but to use the majority of their cash to buy shares, funds, and trusts in their Stocks and Shares ISA or Self-Invested Personal Pension (SIPP).

If they can achieve an average annual return of 9%, which I think is realistic, their £9,000 initial lump sum and £300 monthly top-up should make them £773,335 after 30 years.

Drawing down at 4% a year, they’ll have a regular second income of £30,933. With the State Pension combined, there’s a great chance the investor will be able to hit the PLSA’s target for a comfortable retirement.

A top tech trust

This shares-focused investing strategy puts an individual’s money in greater peril than if they just bunged it in a savings account. But the potentially life-changing returns make it worth serious consideration in my book.

Investors can reduce the risk to their capital by investing in a trust, too. Polar Capital Technology Trust (LSE:PCT), for example, holds shares in 102 different companies.

Major holdings here include chipmaker Nvidia, software developer Microsoft, and social media giant Meta.

Technology trusts like this are highly cyclical in nature. And so they can produce disappointing returns during economic downturns.

Yet for long-term investors, I think Polar is still worth serious consideration. Past performance is not always reliable guide to the future. But the trust has delivered a stunning average annual return of 13.4% since its founding in 1996.

Fast-growing sectors like AI, robotics, green technology, and quantum computing all suggest Polar’s trust could keep delivering brilliant returns.

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. Royston Wild has no position in any of the shares mentioned. The Motley Fool UK has recommended Meta Platforms, Microsoft, and Nvidia. 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

Man writing 'now' having crossed out 'later', 'tomorrow' and 'next week'
Investing Articles

The best time to buy stocks? It might be right now

Short-term issues that delay long-term trends create opportunities to buy stocks. And that could be happening right now with a…

Read more »

Queen Street, one of Cardiff's main shopping streets, busy with Saturday shoppers.
Investing Articles

Here’s why Next stock rose 5% and topped the FTSE 100 today

Next was the leading FTSE 100 stock today, rising 5%. Our writer takes a look at why and asks if…

Read more »

Renewable energies concept collage
Investing Articles

Up 458% in a year, could the Ceres Power share price go even higher?

Christopher Ruane reviews some highs and lows of the Ceres Power share price over the years and wonders whether the…

Read more »

Rolls-Royce's Pearl 10X engine series
Investing Articles

Are the glory days over for Rolls-Royce shares?

Rolls-Royce shares have soared in recent years. Lately, though, they have taken a tumble. Could there be worse still to…

Read more »

Group of friends meet up in a pub
Investing Articles

Are ‘66% off’ Diageo shares a once-in-a-decade opportunity?

Diageo shares have taken another hit in the early weeks of 2026. Are we looking at a massive bargain or…

Read more »

Investing Articles

Meet the UK stock under £1.50 smashing Rolls-Royce shares over the past year

While Rolls-Royce shares get all the attention, this under-the-radar trust has quietly made investors a fortune. But is it still…

Read more »

UK financial background: share prices and stock graph overlaid on an image of the Union Jack
Investing Articles

Down 19%, the red lights are flashing for Barclays shares!

Barclays shares have fallen almost a fifth in value as the Middle East war has intensified. Royston Wild argues that…

Read more »

Aviva logo on glass meeting room door
Investing Articles

After falling another 5%, are Aviva shares too cheap to ignore?

£10,000 invested in Aviva shares five years ago would have grown 50% by now. But what might the future hold,…

Read more »