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.

How I’d invest £20,000 in a Stocks and Shares ISA to generate extra income for life

How would our writer try to boost his income by investing in a Stocks and Shares ISA? He’d start by considering these principles.

Content white businesswoman being congratulated by colleagues at her retirement party

Image source: Getty Images

You’re reading a free article with opinions that may differ from The Twelfth Magpie’s Premium Investing Services. Become a member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn more, and get a free 'Best Buy Now' stock!.

The idea of earning extra income without working for it appeals to me. That is why I invest in dividend shares. Rather than let my Stocks and Shares ISA allowance go unused, if I had a spare £20,000 right now, this is how I would spend it buying shares I thought could set up passive income streams for the long term.

High income, growing income or both

As a long-term investor, I would be putting my ISA to work not just for now but also with an eye on the years ahead. So I would think about what my objective was when it came to income.

Should you buy Rolls Royce shares today?

Before you decide, please take a moment to review this report first. Despite ongoing uncertainties from US tariffs to global conflicts, Mark Rogers and his team believe many UK shares still trade at substantial discounts, offering savvy investors plenty of potential opportunities to learn about.

That’s why this could be an ideal time to secure this valuable research – Mark’s analysts have scoured the markets to reveal 5 of his favourite long-term ‘Buys’. Please, don’t make any big decisions before seeing them.

That may sound obvious – I would like lots of it! In reality though, there are a few more nuanced questions I might helpfully consider.

For example, although dividends are never guaranteed, would I prioritise jam today or jam tomorrow? Some dividends are large but flat – Jupiter is an example from my own portfolio. Others are much smaller but growing. For example, DCC has a yield of 3.6%, just a fraction of the 16.7% offered by Jupiter. But it has raised its dividend annually for well over two decades.

I might also consider whether I would be willing to invest in cyclical industries. These can offer high dividend yields in good years, but when commodity selling prices fall those often drop. For example, the 11% dividend yield of Rio Tinto looks attractive to me now. But if metal prices fall sharply, I expect the annual dividend will be cut deeply.

Investing in great companies

But yield is always just one part of the story. To sustain a payout, a company needs to generate enough extra income to fund it. For example, while the Jupiter yield right now looks eye-popping, its first half earnings did not cover it. If Jupiter cannot improve its business performance, I see a risk of a dividend cut.

That is why when looking to invest in my Stocks and Shares ISA I would try to find businesses I thought had a sustainable competitive advantage in a resilient market.

With £20,000, I could diversify my portfolio across five or even 10 such companies. Finding 10 great businesses I can understand that sell at an attractive share price today may be a challenge. So I would be willing to keep some or all of the money sitting in my ISA until I found income stocks that felt right for me. Remember, I am investing for the long term. Patience is critical to doing that successfully.

Reinvesting dividends in my Stocks and Shares ISA

As £20,000 is a substantial sum, hopefully it could earn me a decent amount in dividend income each year. At a 5% average yield, for example, my earnings could be £1,000 each year.

But rather than take them out, what if I simply left them in the ISA and compounded them? That could help me grow my future income streams even more – which is why I would do it.

If I hold my shares and keep reinvesting, hopefully I would be generating passive income for decades.

C Ruane has positions in Jupiter Fund Management. The Motley Fool UK has recommended Jupiter Fund Management. 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

Middle aged businesswoman using laptop while working from home
Investing Articles

Can an ISA outperform the stock market? Yes – here’s how!

Many investors dream of using their ISA to do better than the market overall. This writer knows it's possible --…

Read more »

Asian man looking concerned while studying paperwork at his desk in an office
Investing Articles

Dear SpaceX stock fans, mark your calendar for 7 July

SpaceX stock is getting fast-tracked into the world's leading technology index. Should I buy shares of the rocket maker before…

Read more »

A young black man makes the symbol of a peace sign with two fingers
Investing Articles

Here are 2 FTSE shares I’m excited about this July — and 1 I’m avoiding

As we head into the second half of the year, Mark Hartley identifies two undervalued FTSE shares that are flashing…

Read more »

Image of happy young people man and woman in basic clothing thinking and touching chin while looking aside isolated over yellow background
Investing Articles

Up 250%! Here’s why I bought HSBC shares over SpaceX stock

Everybody's talking about SpaceX stock but Harvey Jones chose to put his money into a top FTSE 100 company that's…

Read more »

Young brown woman delighted with what she sees on her screen
Investing Articles

Newsflash: the Diageo share price just climbed!

Harvey Jones was so surprised to see the Diageo share price heading the right way for once he almost fell…

Read more »

Curtains, happy woman and thinking of future in home, planning and reflection of mindset with view. Window, smile and African girl with vision, ideas and dream for morning inspiration in living room.
Investing Articles

Up 50% in a year! That’s not the only reason I’d consider buying Barclays over Nvidia stock today

Harvey Jones says that Nvidia stock is probably one of the safer ways to play the artificial intelligence revolution. But…

Read more »

Happy senior couple hugging and enjoying retirement at home
Investing Articles

Here’s why I bought this 7.6%-yielding FTSE 100 dividend stock instead of saving in a Cash ISA

Harvey Jones crunches the numbers to show how investing in stocks and shares can be much more profitable than saving…

Read more »

Young Asian woman holding a cup of takeaway coffee and folders containing paperwork, on her way into the office
Investing Articles

Here’s how much passive income 1,000 Greggs shares could pay…

Greggs shares have lost nearly 50% of their value inside the past two years. Is this out-of-favour passive income stock…

Read more »