We have some exciting news to share! The Motley Fool UK has now become 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. We’ll be introducing a new name and brand over the coming weeks — we're very excited to share it with you and embark on this new chapter together!

What second income could I earn from investing £20 a week?

Christopher Ruane sets out how he would invest in dividend shares over the long term as he aims to build a second income on a budget.

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.

Middle-aged Caucasian woman deep in thought while looking out of the window

Image source: Getty Images

Work more hours to earn more money? I could do that, as a way to try and build a second income. But an alternative approach is to let others do the hard work while I benefit financially.

One way to try and achieve that is by investing in dividend-paying shares. Indeed, I use that approach at the moment, alongside millions of other investors.

One thing I like about this method is that I can match it to my own circumstances. Investing in shares does not require me to have a lot of money upfront, unlike some second income ideas. But if I only put aside, say £20 a week, how realistic is it that I could build a meaningful extra income stream?

Long-term investing

The answer is that it is realistic, but I need to be patient. This is a long-term project. Basically, my future returns from such an approach will boil down to three elements.

First, how much capital am I investing? Saving £20 a week adds up to £1,040 per year that I can put into the stock market.

Secondly, what is the average dividend yield of the shares I buy? Yield is the percentage of my cost I expect to get back each year in dividends, which will form the backbone of my second income.

Dividends are never guaranteed – Direct Line axed its shareholder payout altogether this year, for example. But if I invest £1,040 in shares that yield an average 5%, that ought to earn me £52 per year in dividends.

Finally, I also need to consider capital gain, or loss. In other words, if I buy shares at one price and later sell them at a higher price, I could make money on top of any dividends. If they fall in value, on the other hand, I may not get back all of the money I originally invested.

Building an investment strategy

That throws up a couple of considerations when building my investment strategy. For example, should I compound the dividends?

Compounding means reinvesting dividends, rather than taking them as cash. That would mean delaying my second income in the hope of making it bigger in future.

In my example, £1,040 invested at a 5% yield would earn me £52 per year. If I reinvest my dividends for a decade at a compound annual growth rate of 5%, after 10 years that same £1,040 ought to be earning me £85 per year.

Another point for me to consider is how to strike the right balance between yield and risk. Just because a share has a high yield now does not mean it will earn me more second income over the long run.

The dividend could be cut, or completely axed, like in the Direct Line example. That is why I diversify my portfolio across a number of shares. But it also explains why I do not choose shares just because of their yield. Instead, I aim to buy into high-quality businesses selling at attractive prices.

After a decade, investing £20 a week and compounding at 5% annually, I ought to be earning about £655 each year in dividends. That is closer to some handy extra cash than a substantial second income — but it could help me earn even more over time.

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

Content white businesswoman being congratulated by colleagues at her retirement party
Investing Articles

Here’s how a stock market crash could actually be great for your retirement planning!

Christopher Ruane explains why, rather than fearing a stock market crash, a long-term investor could use it to try and…

Read more »

Warren Buffett at a Berkshire Hathaway AGM
Investing Articles

Here’s how Warren Buffett built multi-billion-dollar passive income streams

Warren Buffett's set up passive income streams totalling billions of dollars annually. So what could someone with a modest amount…

Read more »

British pound data
Investing Articles

2 UK shares to consider avoiding as the FTSE 100 extends losses

As the FTSE 100 dips for the second time this year, Mark Hartley weighs up market sentiment and considers two…

Read more »

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

How to invest £125 a month in UK shares to target a £39,039 annual passive income

Muhammad Cheema explains how an investor could earn the current median salary in the UK as passive income by making…

Read more »

Investor looking at stock graph on a tablet with their finger hovering over the Buy button
Investing Articles

These white-hot FTSE 250 growth shares are on sale today!

Royston Wild loves a good bargain. Here he reveals two FTSE 250 shares that all savvy UK stock investors should…

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 an ISA for a £31,352 second income?

Investing regularly in a Stocks and Shares ISA can generate a significant second income in retirement. Royston Wild explains how.

Read more »

Aston Martin DBX - rear pic of trunk
Investing Articles

With the Aston Martin share price in pennies, is it in bargain territory?

With the Aston Martin share price at a fraction of what it once was, is it a bargain? Our writer…

Read more »

A hiker and their dog walking towards the mountain summit of High Spy from Maiden Moor at sunrise
Investing Articles

How I plan to lock in sustainable growth on the FTSE 100 in the coming years

Mark Hartley takes a sobering look at the future, and outlines a plan to target FTSE 100 sectors with lower…

Read more »