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

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.

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

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 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

Thoughtful man using his phone while riding on a train and looking through the window
Investing Articles

Here’s how much passive income someone could earn maxing out their ISA allowance for 5 years

Christopher Ruane considers how someone might spend a few years building up their Stocks and Shares ISA to try and…

Read more »

Man putting his card into an ATM machine while his son sits in a stroller beside him.
Investing Articles

Was I wrong about Barclays shares, up 196%?

Our writer has watched Barclays shares nearly triple in five years, but stayed on the sidelines. Is he now ready…

Read more »

Wall Street sign in New York City
Investing Articles

Up 17% in 2025, can the S&P 500 power on into 2026?

Why has the S&P 500 done so well this year against a backdrop of multiple challenges? Our writer explains --…

Read more »

National Grid engineers at a substation
Investing Articles

National Grid shares are up 19% in 2025. Why?

National Grid shares have risen by almost a fifth this year. So much for it being a sleepy utility! Should…

Read more »

Road 2025 to 2032 new year direction concept
Investing Articles

Here are the potential dividend earnings from buying 1,000 Aviva shares for the next decade

Aviva has a juicy dividend -- but what might come next? Our writer digs into what the coming decade could…

Read more »

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

Just released: our top 3 small-cap stocks to consider buying in December [PREMIUM PICKS]

Small-cap shares tend to be more volatile than larger companies, so we suggest investors should look to build up a…

Read more »

This way, That way, The other way - pointing in different directions
Investing Articles

Is the unloved Aston Martin share price about to do a Rolls-Royce?

The Aston Martin share price has inflicted a world of pain on Harvey Jones, but he isn't giving up hope…

Read more »

Surprised Black girl holding teddy bear toy on Christmas
Investing Articles

How much do you need in a Stocks and Shares ISA to raise 1.7 children?

After discovering the cost of raising a child, James Beard explains why he thinks a Stocks and Shares ISA is…

Read more »