We have some exciting news to share! The Motley Fool UK has now become The Twelfth Magpie -- an independent, UK-owned company, led by our long-serving UK management team — Mark Rogers, Chris Nials and Heather Adlington. In practical terms, it’s the same team you know, now fully focused on serving our UK readers and members.

Just as importantly, our approach remains unchanged: long-term, jargon-free, and on your side. This site is our new home, and there will be extra tweaks made across the coming few days as we settle in. So if anything looks a little off, please bear with us!

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.

Here’s how a £20,000 Stocks and Shares ISA could earn £1,342 in monthly passive income

Christopher Ruane explains how a long-term approach and good investing could potentially turn a Stocks and Shares ISA into a passive income powerhouse.

| More on:
ISA coins

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.

With the right approach, a Stocks and Shares ISA can be a lucrative way to try and earn passive income.

Of course, it helps to have realistic expectations and a long-term approach.

XXX

Someone could target a four-figure monthly passive income in the form of dividends using a spare £20k to put such an approach into practice. Here’s how.

Letting dividends earn dividends

There are a couple of key elements that help explain how this plan works.

One is dividends. A dividend is spare money a company has generated that it pays out to shareholders. This is never guaranteed to happen (or keep happening), so it is important for an investor to choose carefully when investing their Stocks and Shares ISA.

Another element is compounding – basically reinvesting the dividends, so hopefully they in turn can earn dividends.

Compounding £20k at 8% annually for 30 years, it ought to grow to a size where an 8% dividend yield would be equivalent to £1,342 of dividends per month on average. Of course, it is important to remember that in 30 years’ time almost £1,400 will be worth a lot less than it is today.

Focus on quality businesses

Is an 8% compound annual growth rate realistic?

The current FTSE 100 dividend yield is 3.3%. Some blue-chip shares offer much higher dividend yields though.

Not only that, but the compound annual growth rate includes any share price gains, not just dividends. Conversely, share price declines would eat into it.

On balance, I do see a target 8% compound annual growth rate as potentially achievable.

To try and do so, I think an investor ought to focus on trying to fill their Stocks and Shares ISA with a diversified range of shares in high-quality, proven businesses.

Long-term dividend prospects

As an example of the sort of dividend share I think investors should consider, I would point to FTSE 100 insurer Aviva (LSE: AV).

Insurance is an industry that benefits from resilient long-term demand. With its long underwriting experience, Aviva is well-placed to price risks appropriately.

It has economies of scale too, thanks to being the UK’s largest insurer. While it has some overseas operations, in recent years Aviva has focused on consolidating its strong position in its home market, for example through its takeover of rival Direct Line.

That could help it to keep growing and also boost its profit margins, by cutting out duplicate functions. However, integrating acquisitions can lead to management taking eyes off the ball when it comes to the core business and I see this as a risk for Aviva.

It cut its dividend per share in 2020 but has since been growing it handsomely each year. The current yield is 5.4%.

Making smart choices from the first step

The share price performance and any dividends paid are not the only factors that help determine how much income the ISA generates. Fees, commissions and charges can eat into it.

So it makes sense in my opinion for an investor to spend some time choosing the right Stocks and Shares ISA for their own needs.  

C Ruane has no position in any of the shares 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

Friends and sisters exploring the outdoors together in Cornwall. They are standing with their arms around each other at the coast.
Investing Articles

£503 buys 14 shares in this FTSE 250 stock that returned 23.9% annually for the last 15 years

This FTSE 250 stock has averaged a huge return for 15 years. At today's price, £503 buys 14 shares. But…

Read more »

Black woman using loudspeaker to be heard
Investing Articles

£1,000 buys 25 shares in this FTSE 100 stock that’s returned 29.2% annually for the last 10 years

This FTSE 100 mining stock has returned close to 30% a year for a decade. At 3,995p, £1,000 buys 25…

Read more »

Female student sitting at the steps and using laptop
Investing Articles

Down 47%, is this growth stock finally worth buying in May?

With a £288m order book and a hidden pipeline of defence and nuclear contracts, is this growth stock now too…

Read more »

House models and one with REIT - standing for real estate investment trust - written on it.
Investing Articles

2 REITs yielding 7%+ to consider for passive income in 2026

A REIT backed by the NHS and another backed by Tesco and Sainsbury's with both yielding 7%+. Here's why I'm…

Read more »

Woman riding her old fashioned bicycle along the Beach Esplanade at Aberdeen, Scotland.
Investing Articles

Just 97 shares of this UK dividend stock generate £238 in passive income

A 5.7% yield, £238 in passive income from just 97 shares, and one of the most divisive dividend stocks on…

Read more »

ISA coins
Investing Articles

£10,000 in an ISA generates a second income of…

The London Stock Exchange is home to some of the world's most generous dividends. But how big a second income…

Read more »

Shot of a senior man drinking coffee and looking thoughtfully out of a window
Investing Articles

Expert recommendations: 2 top income stocks yielding 7%+!

With yields of 7.2% and 7.8% respectively, these two income stocks are catching the eyes of institutional analysts. Should investors…

Read more »

Illustration of flames over a black background
Investing Articles

3 top income-focused stocks to buy in May 2026, according to experts

Looking for a stock to buy for income in May 2026? Experts have flagged these three UK dividend shares as…

Read more »