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.

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.

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. 

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

Young Caucasian man making doubtful face at camera
Investing Articles

£20,000 in savings? Here’s how you can use that to target a £5,755 yearly second income

It might sound farfetched to turn £20k in savings into a £5k second income I can rely on come rain…

Read more »

Snowing on Jubilee Gardens in London at dusk
Investing Articles

Last-minute Christmas shopping? These shares look like good value…

Consumer spending has been weak in the US this year. But that might be creating opportunities for value investors looking…

Read more »

Dominos delivery man on skateboard holding pizza boxes
Investing Articles

2 passive income stocks offering dividend yields above 6%

While these UK dividend stocks have headed in very different directions this year, they're both now offering attractive yields.

Read more »

Black woman using smartphone at home, watching stock charts.
Investing Articles

How I’m aiming to outperform the S&P 500 with just 1 stock

A 25% head start means Stephen Wright feels good about his chances of beating the S&P 500 – at least,…

Read more »

British pound data
Investing Articles

Will the stock market crash in 2026? Here’s what 1 ‘expert’ thinks

Mark Hartley ponders the opinion of a popular market commentator who thinks the stock market might crash in 2026. Should…

Read more »

Investing Articles

Prediction: I think these FTSE 100 shares can outperform in 2026

All businesses go through challenges. But Stephen Wright thinks two FTSE 100 shares that have faltered in 2025 could outperform…

Read more »

pensive bearded business man sitting on chair looking out of the window
Dividend Shares

Prediction: 2026 will be the FTSE 100’s worst year since 2020

The FTSE 100 had a brilliant 2026, easily beating the US S&P 500 index. But after four years of good…

Read more »

Portrait of elderly man wearing white denim shirt and glasses looking up with hand on chin. Thoughtful senior entrepreneur, studio shot against grey background.
Dividend Shares

Prediction: the Lloyds share price could hit £1.25 in 2026

The Lloyds share price has had a splendid 2025 and is inching closer to the elusive £1 mark. But what…

Read more »