How I’d use dividend shares to turn a £20k ISA into a £1k monthly second income

Our writer explains how they’d aim to build a substantial tax-free passive income stream by investing in high-quality dividend shares inside an ISA.

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 pastel colored growing graph with rising rocket.

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.

In my view, dividend income represents a steady and dependable source of passive income. It can help investors build both long-term wealth and financial independence.

What’s more, unlike other passive income streams, such as rental properties or royalties, dividends require minimal effort on my part once I’ve made the initial investment.

With that in mind, here’s my plan for using dividend shares to turn a £20,000 Stocks and Shares ISA into a £1,000 monthly passive income.

Building a passive income stream

Buying income shares with the aim of generating a substantial secondary income from a £20,000 ISA would take a while. That said, it’s certainly achievable.

But even if I had enough cash available to invest my full ISA allowance in one go, I won’t be anywhere close to my target.

With careful planning and investment selection, however, I could harness the power of compounding and dividend reinvestment. This would be key to helping me build a portfolio that generates £1,000 a month in tax-free dividend income.

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.

Harnessing the magic of compound returns

Historically, Stocks and Shares ISAs have performed well. As my colleague points out, their average annual rate of return over the past 10 years is 9.64%.

This has by no means been a smooth ride though. To illustrate, in 2019/20 the average S&S ISA return was a 13% loss.

Moreover, there’s no guarantee I could achieve a 9% annualised return moving forward. Nevertheless, there are a few high-quality dividend-paying companies that are currently forecast to yield above the 7%-8% mark.

In particular, I’m keeping my eye on Phoenix (9.4% yield), Aviva (7.8% yield), and M&G (10.1% yield).

But while it can be tempting to chase the companies yielding the highest, I always look to identify those with a history of sustainable dividend yields and strong cash flows.

Creating a long-term mindset

One thing for me to keep in mind is that investing in dividend shares involves an element of risk. This includes sharp market fluctuations and the possibility of dividend cuts or suspensions.

Additionally, relying heavily on a few dividend stocks increases the risk of exposure to individual company performance.

That said, with a long-term perspective and a well-executed strategy that employs diversification, I should be well-equipped to ride out the inevitable periods of volatility.

Enjoying a £1k monthly second income

With this in mind, let’s say I manage to achieve an 8% return on a single ISA allowance of £20k. After about 28 years I’d have an investment pot worth around £170,000. And this would be without making any additional contributions in that timeframe!

From here, if I could continue to earn an average yield of 8% from my holdings, I’d receive around £13,600 in annual dividend income. This equates to a £1,133 monthly second income.

In the end, if I can stick to my long-term strategy of focusing on high-quality dividend shares and harnessing the power of compound returns, I’d be well-positioned to reach my goal of £1,000 a month in passive income.

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.

Matthew Dumigan has no position in any of the shares mentioned. The Motley Fool UK has recommended M&g 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

Happy parents playing with little kids riding in box
Investing Articles

2 FTSE 250 dividend growth stocks I’m considering for passive income

Paul Summers thinks the best dividend stocks to buy are those that consistently return more money to investors every year.

Read more »

Investing Articles

The Compass Group share price looks ready for growth after positive 2024 results

The Compass Group share price is up 4% today following positive full-year results. Our writer considers its prospects in 2025…

Read more »

Young mixed-race couple sat on the beach looking out over the sea
Investing Articles

How I plan to build an £86k yearly second income in the stock market

Is it realistic to aim for a substantial future second income by investing in high-quality shares? This writer firmly believes…

Read more »

Investing Articles

Here’s the Vodafone share price forecast up to 2027

Can anything stop the Vodafone share price slide? It's still early days for the company's turnaround plan, so we might…

Read more »

Investing Articles

Down 37%, here’s one of my favourite FTSE 100 bargain shares to consider

This FTSE 100 retailer's shares have collapsed in 2024. Despite tough trading conditions, is now the time to consider buying…

Read more »

Investing Articles

Which do I like best today, Nvidia or Tesla stock?

EV maker Tesla stock is on the up, while Nvidia growth is softening a bit. But they're both in the…

Read more »

Investing Articles

After jumping 15%, my favourite FTSE 250 stock looks set for the premier league

Games Workshop stock recently reached an all-time high, placing it within touching distance of promotion from the FTSE 250.

Read more »

Surprised Black girl holding teddy bear toy on Christmas
Investing Articles

1 top growth stock on my Christmas buy list!

Ben McPoland reveals one top-notch growth stock down 29% that he plans to stuff into his portfolio in time for…

Read more »