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.

5 passive income ideas from £100 a month

This Fool explains why he would acquire these five passive income opportunities for his portfolio with a monthly investment of £100.

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.

I believe investing in stocks and shares is one of the most accessible ways for investors to generate a passive income. With the rise of low-cost and free trading apps such as Freetrade, investors can start building a passive income portfolio with a lump sum of £100 a month, or less. 

And with that in mind, here are five passive income ideas I would acquire for my portfolio with a monthly investment of £100. 

XXX

Passive income ideas

An investment of £100 a month will not produce a passive income I can live off immediately. Nevertheless, this relatively small initial investment will build up over time, and by reinvesting dividends I receive, I can turbocharge the growth of my portfolio. 

The first organisation I would buy for my portfolio is Legal & General. With a dividend yield of 6%, at the time of writing, this company immediately stands out as a high-income investment.

As one of the country’s largest pension and asset managers, Legal has a strong competitive advantage and robust balance sheet. I believe these factors should underpin the group’s dividend. Challenges that could threaten the payout include regulatory constraints and higher interest rates.

These challenges also apply to my second passive income pick, Sabre Insurance. This car insurance company currently offers a dividend yield of 5.7%. 

Elsewhere, in the utility sector, I would acquire Greencoat UK Wind and National Grid. As the economy will always require electricity, these companies have a clear defensive nature. 

National Grid operates the majority of electricity infrastructure in England. Meanwhile, Greencoat manages a growing portfolio of wind generation assets around the UK. 

These businesses are highly regulated. Regulators place limits on how much profit they are allowed to earn and charge to customers. So they may not be able to return as much cash to shareholders as they may like. That is one of the challenges they have to deal with at all times.

Still, both companies offer dividend yields of 5.2%, at the time of writing. That is why I think both stocks are attractive income investments today. 

Dividend diversification

Finally, I would buy Custodian REIT for my passive income portfolio. The real estate investment trust, which owns a diversified property portfolio across the UK in multiple sectors from industrial to retail warehouses, currently supports a dividend yield of 5.1%. I think this could provide my portfolio with a steady income stream from property, and additional diversification. Headwinds the group could face include higher interest rates, which may increase its cost of debt. 

In total, the five passive income opportunities I have outlined above offer an average dividend yield of 5.4%. According to my calculations, based on a £100 monthly investment, this portfolio could generate an income of £65 after a year. After 10 years, the pot could be worth £16k, with an annual passive income of £800.

Although there is no guarantee these companies will continue to pay their dividends at current levels, I think these figures illustrate the potential of this passive income portfolio. 

Rupert Hargreaves has no position in any of the shares mentioned. The Motley Fool UK has recommended Custodian REIT and Greencoat UK Wind. 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 »