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.

This simple passive income idea could earn me £300 a month

By investing the right amount in well-chosen shares, this writer believes he could earn hundreds of pounds in monthly passive income.

Smiling white woman holding iPhone with Airpods in ear

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.

From setting up an online shop to buying a rental property, the world is full of passive income ideas that to me look anything but passive.

By contrast, putting money into the shares of proven blue-chip businesses, then sitting back and letting them pay me regular dividends, is the sort of passive income idea I can really get excited about. Indeed, like millions of people, I am already earning money that way without working for it.

XXX

If I wanted to target £300 a month on average doing that, here is how I would go about it.

Finding shares to buy

My starting point would be finding the sorts of firms I reckoned may pay beefy dividends far into the future.

Some people try to do that by looking at current yields. Diversified Energy, for example, currently has a dividend yield of 15.4%. That means for every £100 I invested in Diversified shares today, I would hopefully earn over £15 annually in dividends.

I say ‘hopefully’ because dividends are not guaranteed at Diversified – or any other company. That is why, rather than focusing on yield, I look at the fundamentals of a business.

Is there going to be a large market of potential customers for its products or services? Does it have some edge over rivals that means it will not need to compete on price alone? Will the company be able to distribute excess cash to shareholders as dividends, or will it need to be spent on other priorities such as paying down debt?

Building a portfolio

Such an approach may whittle down my options considerably. That is fine by me. I want to focus on high-quality companies that meet my investment criteria for passive income potential, including when it comes to their valuation.

If I cannot find such shares today, I will wait. Such is the patience of the long-term investor.

I want to build a portfolio of such shares, rather than put all my eggs in one basket. To do so, I would set up a share-dealing account, or Stocks and Shares ISA.

Setting a target

How much would I need to invest to hit my target of £300 a month?

That depends on the average yield of my portfolio. £300 per month is £3,600 a year. At a 10% yield, I could earn that with a £36,000 investment. A 5% yield would require me to invest £72,000.

With my focus on quality and value, I would not choose shares just because of their yield. That might mean that to hit my target, I need to invest more money than I have available today.

In that case, I would aim to build my portfolio over time. I could hopefully start earning at least some passive income in a matter of months, even if it took me much longer finally to hit my monthly target of £300.

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 »