How I’d invest for a second income using my £20k ISA allowance

Here’s a three-strand investing strategy and some stock ideas for building a second income portfolio starting with £20k in an ISA.

| 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.

Mature Caucasian woman sat at a table with coffee and laptop while making notes on paper

Image source: Getty Images

With my £20k ISA allowance (that is, my contribution limit), I’d invest in shares and build a growing dividend stream to finance a second income.

My approach would have three strands. First, I’d look for stocks with a chunky dividend yield now.

Big-dividend stocks would give me a decent-sized cash income stream sooner rather than later. The money would give me choices. For example, I could draw it for a second income, or reinvest it to help build up the share account so it’s capable of paying an even bigger income later.

The power of growth

A second strand would be to look for companies that have a good rate of dividend growth. Dividends are good, but an income stream that gets bigger over time can be even better.

The progress a company makes with dividend payments often reflects the success and growth of the underling business. That means a decent dividend-grower can often deliver its shareholders a rising share price too.

The third strand would be to ignore dividends and focus just on the growth of an enterprise. Often, fast-growing businesses don’t pay dividends, or pay tiny ones. Instead, they tend to reinvest their cash flow back into operations to generate even more growth.

If the capital value of my portfolio is rising, I can choose later how to use the gains to generate a second income. I could draw money directly from the portfolio by selling shares, for example. Or I could reinvest the money into big-dividend-paying stocks or dividend growers.

For my big-dividend stocks, I’d consider names such as Legal & General, Renewable Infrastructure, MONY Group and others. Meanwhile, for my dividend-growers I’d target companies like RELX, BAE Systems, Halma, DCC and similar.

For growth, I’d tend to consider smaller companies with a long runway ahead. Names on my watchlist now include ME International, Gamma Communications, Wilmington and Spectra Systems (LSE: SPSY), which deals in machine-readable, high-speed banknote authentication, brand protection technologies, and gaming security software.

Trading well and a robust outlook

At the end of September, the company delivered a strong set of half-year results and a positive outlook statement. Meanwhile, City analysts expect normalised earnings to increase by a whopping 70% this year and 110% in 2025.

With the share price in the ballpark of 246p, it’s been adjusting to the progress of the business and stair-stepping higher.

However, with such big anticipated earnings increases, one risk for shareholders is the business may fail to keep up its rate of growth, perhaps because of not winning contracts it’s pitched for. It could even miss current estimates. If that happens, the valuation could be left ‘stranded’ at too high a level.

For the time being though, the forward-looking earnings multiple is just over seven for 2025 when set against the forecast. However, Spectra Systems is a FTSE AIM-listed small-cap stock with a market capitalisation of just £117m. So, although the multiple looks undemanding at first glance, I’d expect it to be lower than some because of the risks that come with smaller businesses.

Nevertheless, despite the uncertainties, I’d conduct further research and consider the stock now for inclusion in a portfolio financed by my £20k ISA allowance.

Kevin Godbold has no position in any of the shares mentioned. The Motley Fool UK has recommended BAE Systems, Gamma Communications Plc, Halma Plc, Mony Group Plc, RELX, and Wilmington 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

Friends at the bay near the village of Diabaig on the side of Loch Torridon in Wester Ross, Scotland. They are taking a break from their bike ride to relax and chat. They are laughing together.
Investing Articles

How much should a 40-year-old put in an ISA to earn a £2k monthly passive income at 65? 

Keen to build a lifelong passive income from a portfolio of FTSE 100 shares, entirely free of tax? Harvey Jones…

Read more »

ISA coins
Investing Articles

Stocks and Shares ISA in the red? This FTSE stock could help fix that

With the right choices, a Stocks and Shares ISA can be turned from a loss to a profit in 2026.…

Read more »

Mature Caucasian woman sat at a table with coffee and laptop while making notes on paper
Investing Articles

What £5 a day invested in a SIPP could be worth at retirement

Could investors swap their daily coffee order for a sizeable SIPP portfolio at retirement age? Ken Hall thinks there’s a…

Read more »

Businessman hand stacking money coins with virtual percentage icons
Investing Articles

How to use an ISA to target a £100-a-week second income

Many investors dream of a steady second income and financial freedom. Ken Hall looks at what it takes to turn…

Read more »

Investing Articles

Down 15% with a P/E below 9. What on earth should I do about Barclays shares?

Harvey Jones was hoping to buy Barclays shares but feared they were too expensive. That's no longer an excuse following…

Read more »

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

Looking for a £750 monthly passive income? Here’s how much it takes

The idea of buying dividend shares for their passive income potential can sound promising. How might the nuts and bolts…

Read more »

Calendar showing the date of 5th April on desk in a house
Investing Articles

£20,000 in this ISA portfolio would generate £1,400 in passive income

Ben McPoland presents a ready-made Stocks and Shares ISA portfolio containing five UK names that as a group currently yield…

Read more »

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

The most underrated stock in the FTSE 100?

Nobody seems to like the FTSE 100’s water utilities. But could Severn Trent be the biggest opportunity that investors aren’t…

Read more »