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 big an ISA is needed to target a £523 per week second income?

Interested in aiming to earn a second income of several thousand pounds per month by investing in dividend shares? Christopher Ruane explains how.

| More on:
Woman riding her old fashioned bicycle along the Beach Esplanade at Aberdeen, Scotland.

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.

Have you ever wondered whether the dividends from shares could be a realistic way to build a second income?

That is exactly how some people supplement their earnings. By investing in blue-chip dividend shares, they aim to earn some extra money without having to work for it.

Dividends can add up

Such an approach can be lucrative.

Currently the flagship FTSE 100 index of leading British shares has a yield of 3.2%. That means that, for every £100 invested, an investor would hopefully earn £3.20 per year in dividends.

That might not sound like a lot.

But it depends on how much is invested and at what yield. Although the FTSE 100 average is 3.2%, I think 6% is a realistic target in today’s market even while sticking to a carefully chosen basket of proven blue-chip businesses.

Imagine that somebody invests £1,000 each month and compounds it at 6%. That compound growth can come from dividends or share price growth, though share price declines could eat into the rate achieved.

Compounding at 6%, after 20 years the portfolio ought to be worth a bit over £453k.

At a 6% yield, that is big enough to generate a second income of £523 per week on average.

Getting the right approach

Can it actually be as simple as that makes it sound?

I do think this approach can be fairly straightforward. But it requires discipline and the investor also needs to take care when choosing shares to buy.

After all, dividends are never guaranteed. Even the best company can run into unforeseen difficulties.

It is also necessary to have a practical way to buy shares and hold them, such as a share-dealing account, Stocks and Shares ISA, or trading app.

On the hunt for dividend shares

I said above I think a 6% yield is realistic as an average of the different share yields within a portfolio. Not all of them would necessarily need to yield 6%.

One share I think investors should consider is high-yield FTSE 100 financial services firm Phoenix Group (LSE: PHNX).

Phoenix itself may not be widely known outside financial circles, but some of its operating businesses such as Standard Life certainly are.

In fact, Phoenix has millions of customers. The long-term savings and retirement business is a big player in a section of the market that experiences high, resilient demand.

I expect that to remain the case in years and even decades to come.

With its large client base, deep operational expertise, and powerful brands, I think the company could continue to be highly cash generative.

It already yields 7.9%. It also aims to grow its dividend per share each year, though, as at any company, the dividend is never guaranteed to last.

What sorts of things could potentially get in the way of ongoing dividend growth (or even maintenance)?

One risk I see is any significant market downturn hurting the value of some of Phoenix’s assets. That could force it to write down the value of its mortgage book, eating into earnings.

As a long-term investor, though, I continue to like the prospects for the company and see it as a share for investors to consider.

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

Middle aged businesswoman using laptop while working from home
Investing Articles

3 no-brainer UK shares to buy now for 2026, according to experts

City analysts rate these FTSE 100 and FTSE 250 as great Buys for the New Year. Royston Wild isn't convinced…

Read more »

Man hanging in the balance over a log at seaside in Scotland
Investing Articles

Here are my 4 outrageous stock market predictions for 2026!

Wondering what the global stock market might do over the next 12 months? Royston Wild shares some of his bold…

Read more »

A senior man and his wife holding hands walking up a hill on a footpath looking away from the camera at the view. The fishing village of Polperro is behind them.
Investing Articles

How much do you need in an ISA to target a £3,000 monthly passive income?

Buying dividend shares can be a powerful way to target an ISA income in retirement. Consider this strategy for a…

Read more »

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

How to target a passive income of £45,000 a year from UK shares and hopefully never work again!

By investing regularly in top-notch British stocks, investors can generate enough passive income to eventually stop work and enjoy a…

Read more »

Young female hand showing five fingers.
Investing Articles

I asked ChatGPT for the 5 best growth stocks to buy. It said…

Looking for the greatest growth stocks to buy for 2026 and beyond? Royston Wild asked ChatGPT -- and found some…

Read more »

Middle-aged white man pulling an aggrieved face while looking at a screen
Investing Articles

Dear Greggs shareholders, please look at this data immediately

Greggs shares have plummeted in value over the last year. And this data signals that there could be more pain…

Read more »

Portrait of a boy with the map of the world painted on his face.
Investing Articles

My top growth stock to consider buying and holding until 2035

Find out why this growth stock down 19% is Ben McPoland's top pick to consider buying today and holding tightly…

Read more »

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 »