Share your opinion and earn yourself a free Motley Fool premium report!

We are looking for Fools to join a 75 minute online independent market research forum on 15th / 16th December.

To find out more and express your interest please click here

£20,000 in cash? Here’s how I’d aim to unlock a £15,025 annual second income

This writer explains how he’d go about investing £20k in a Stocks and Shares ISA account to target a sizeable yearly second income.

| 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.

A senior Hispanic couple kayaking

Image source: Getty Images

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.

How nice would it be to have a solid second income passively rolling in one day?

While this remains a dream for many people, some have already made it a reality. And the great news for UK investors is that it can be achieved tax-free through a Stocks and Shares ISA.

If I had £20k sitting idle today, here’s how I’d invest it to target an eye-catching second income down the road.

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.

Taking action

To get the ball rolling, I’d stick this cash into a Stocks and Shares ISA rather than a Cash ISA. The reason is that while Cash ISA returns are guaranteed, the average return from the stock market easily beats cash over the long run.

A Stocks and Shares ISA gives me almost endless investing options. I could put my money behind shares like Facebook-owner Meta Platforms or Amazon.

Or UK dividend stocks such as Lloyds, Tesco and HSBC. These regularly dish out a portion of their profits to shareholders.

For diversification, I could buy exchange-traded funds or investment trusts. These would give me instant exposure to many stocks in one fell swoop.

A UK share I like

So, one route is to let a professional manager invest for me. I don’t mean visiting one in an office. I’m talking about investing in funds run by professionals who do the stock-picking.

If I were starting out, one FTSE 250 option I’d consider is Baillie Gifford US Growth Trust (LSE: USA).

As the name implies, this is a trust that invests in US-listed growth stocks. Some of these will be familiar, such as artificial intelligence leader Nvidia and streaming giant Netflix, but some are more obscure.

Yet that’s the point. I’m trusting the managers to pick a portfolio of (mainly) winners, to help drive returns. Some will be hidden gems, hopefully.

What I particularly like here is that the portfolio has a number of exceptional private companies. Indeed, the top holding today (with about a 7% weighting) is SpaceX, Elon Musk’s unlisted space exploration firm.

The company has pioneered reusable rockets, which has significantly reduced launch costs. This allows it to offer competitive pricing for satellite launches and other space missions.

The firm has just put its 5,999th Starlink satellite into orbit, and this was the 307th time SpaceX has landed its rocket booster.

Reports suggest revenue at Starlink, its direct-to-consumer satellite internet system, will jump to around $6.6bn this year, up from just $1.4bn in 2022.

Finally, Baillie Gifford US Growth is currently trading at a 10% discount to the net asset value of its underlying investments. In retrospect, this might prove to be a bargain.

The path to £15,025

Now, despite my enthusiasm, growth stocks can be very volatile. Using rocket metaphors, they have a tendency to either crash and burn or go to the moon. Underperformance is a risk.

However, assuming a portfolio of stocks like this collectively returned an average of 8.5% a year, my £20k would grow to £231,165 after 30 years. This is with any dividends reinvested.

At this point, if I switched entirely to dividend stocks yielding an average 6.5%, I’d receive annual passive income of £15,025.

That’s without adding another penny beyond platforms fees. However, if I regularly invested along the way, the final figures would obviously be much higher.

John Mackey, former CEO of Whole Foods Market, an Amazon subsidiary, is a member of The Motley Fool’s board of directors. HSBC Holdings is an advertising partner of The Ascent, a Motley Fool company. 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. Ben McPoland has positions in HSBC Holdings and Lloyds Banking Group Plc. The Motley Fool UK has recommended Amazon, HSBC Holdings, Lloyds Banking Group Plc, Meta Platforms, Nvidia, and Tesco Plc. 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

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

Can the Rolls-Royce share price do it again in 2026?

Can the Rolls-Royce share price do it again? The FTSE 100 company has been a star performer in recent years…

Read more »

Businessman hand flipping wooden block cube from 2024 to 2025 on coins
Investing Articles

After huge gains for S&P 500 tech stocks in 2025, here are 4 moves I’m making to protect my ISA and SIPP

Gains from S&P tech stocks have boosted Edward Sheldon’s retirement accounts this year. Here’s what he’s doing now to reduce…

Read more »

View of Lake District. English countryside with fields in the foreground and a lake and hills behind.
Investing Articles

With a 3.2% yield, has the FTSE 100 become a wasteland for passive income investors?

With dividend yields where they are at the moment, should passive income investors take a look at the bond market…

Read more »

Smart young brown businesswoman working from home on a laptop
Investing Articles

Should I add this dynamic FTSE 250 newcomer to my Stocks and Shares ISA?

At first sight, a UK bank that’s joining the FTSE 250 isn’t anything to get excited by. But beneath the…

Read more »

Investing Articles

£10,000 invested in BT shares 3 months ago is now worth

BT shares have been volatile lately and Harvey Jones is wondering whether now is a good time to buy the…

Read more »

Person holding magnifying glass over important document, reading the small print
Investing Articles

After a 66% fall, this under-the-radar growth stock looks like brilliant value to me

Undervalued growth stocks can be outstanding investments. And Stephen Wright thinks he has one in a company analysts seem to…

Read more »

Content white businesswoman being congratulated by colleagues at her retirement party
Investing Articles

Don’t ‘save’ for retirement! Invest in dirt cheap UK shares to aim for a better lifestyle

Investing in high-quality and undervalued UK shares could deliver far better results when building wealth for retirement. Here's how.

Read more »

Black woman using smartphone at home, watching stock charts.
Investing Articles

1 growth and 1 income stock to kickstart a passive income stream

Diversification is key to achieving sustainable passive income. Mark Hartley details two broadly different stocks for beginners.

Read more »