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.

It’s possible to build a 5-figure second income investing under £100 a week. Here’s how!

Is it really possible to earn a second income by investing regularly in dividend shares? Christopher Ruane explains how it could work.

| More on:
Businessman with tablet, waiting at the train station platform

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.

People try different things to earn a second income – including taking on a second job. Could there be easier ways to try and earn some extra money?

A much less time-intensive but potentially lucrative approach involves buying a diversified portfolio of shares in blue-chip companies that pay dividends to their shareholders.

XXX

That can be done even on a fairly modest budget. So here is how someone investing less than £100 per week could aim to grow a second income this way.

A slow and steady approach to building income

Let’s say someone invests £90 a week. Over the course of a year, that would add up to £4,680. If that was invested at a 6% yield, it should earn around £280 a year in dividends.

A yield is simply the amount earned annually expressed as a percentage of what is paid in. So 6% of £4,680 is just over £280.

This could be a good start. Six percent is above the average FTSE 100 yield but I see it as achievable in today’s market.

However, by taking a long-term approach, this could become even more lucrative.

Looking to the long term

For example, say an investor keeps putting in £90 a week and compounds the portfolio at 6% annually. Compounding basically means reinvesting income so that dividends in turn can earn dividends.

After 20 years, the portfolio ought to be worth around £177k. At a 6% dividend yield, that should earn a bit over £10k a year in dividends.

So in two decades, putting £90 each week into shares would have built to generate a five-figure second income each year.

Making some smart moves

Getting this right would require making the right choices.

One important choice is how to invest. For example, this could be through a share dealing account, dealing app or Stocks and Shares ISA. Another important choice, of course, is deciding which shares to buy.

I use the plural here because even the best business can run into difficulties, so the savvy investor always diversifies across different shares.

Finding shares to buy

One share I think income investors ought to consider is Legal & General (LSE: LGEN). The FTSE 100 financial services company currently offers a dividend yield of 9%. It also aims to grow its dividend per share by 2% annually.

No dividend is ever guaranteed and so whether the firm maintains its payout, let alone raises it, will ultimately depend on its financial performance.

I think it has a lot to like as a business, including a proven business model. It already has a large customer base and thanks to its strong brand and well-known name, it could hopefully grow that over time.

I also like the company’s focus on retirement-linked products as this is a large market that is likely to endure over the long term.

Still, the sale of a large US business may hurt Legal & General’s future revenues and earnings. Another risk is that volatile stock markets may lead some policyholders to pull out funds, hurting profits.

From a long-term perspective though, I think it is a share worth considering for investors seeking income.

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

Friends and sisters exploring the outdoors together in Cornwall. They are standing with their arms around each other at the coast.
Investing Articles

£503 buys 14 shares in this FTSE 250 stock that returned 23.9% annually for the last 15 years

This FTSE 250 stock has averaged a huge return for 15 years. At today's price, £503 buys 14 shares. But…

Read more »

Black woman using loudspeaker to be heard
Investing Articles

£1,000 buys 25 shares in this FTSE 100 stock that’s returned 29.2% annually for the last 10 years

This FTSE 100 mining stock has returned close to 30% a year for a decade. At 3,995p, £1,000 buys 25…

Read more »

Female student sitting at the steps and using laptop
Investing Articles

Down 47%, is this growth stock finally worth buying in May?

With a £288m order book and a hidden pipeline of defence and nuclear contracts, is this growth stock now too…

Read more »

House models and one with REIT - standing for real estate investment trust - written on it.
Investing Articles

2 REITs yielding 7%+ to consider for passive income in 2026

A REIT backed by the NHS and another backed by Tesco and Sainsbury's with both yielding 7%+. Here's why I'm…

Read more »

Woman riding her old fashioned bicycle along the Beach Esplanade at Aberdeen, Scotland.
Investing Articles

Just 97 shares of this UK dividend stock generate £238 in passive income

A 5.7% yield, £238 in passive income from just 97 shares, and one of the most divisive dividend stocks on…

Read more »

ISA coins
Investing Articles

£10,000 in an ISA generates a second income of…

The London Stock Exchange is home to some of the world's most generous dividends. But how big a second income…

Read more »

Shot of a senior man drinking coffee and looking thoughtfully out of a window
Investing Articles

Expert recommendations: 2 top income stocks yielding 7%+!

With yields of 7.2% and 7.8% respectively, these two income stocks are catching the eyes of institutional analysts. Should investors…

Read more »

Illustration of flames over a black background
Investing Articles

3 top income-focused stocks to buy in May 2026, according to experts

Looking for a stock to buy for income in May 2026? Experts have flagged these three UK dividend shares as…

Read more »