Share your opinion and earn yourself a free Motley Fool premium report!

We are looking for Fools to join a 75 minute online independent market research forum on 15th / 16th December.

To find out more and express your interest please click here

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

Investing Articles

The BP share price could face a brutal reckoning in 2026

Harvey Jones is worried about the outlook for the BP share price, as the global economy struggles and experts warn…

Read more »

Midnight is celebrated along the River Thames in London with a spectacular and colourful firework display.
Investing Articles

How on earth did Lloyds shares explode 75% in 2025?

Harvey Jones has been pleasantly surprised by the blistering performance of Lloyds shares over the last year or two. Will…

Read more »

Group of four young adults toasting with Flying Horse cans in Brazil
Investing Articles

Down 56% with a 4.8% yield and P/E of 13 – are Diageo shares a generational bargain?

When Harvey Jones bought Diageo shares he never dreamed they'd perform this badly. Now he's wondering if they're just too…

Read more »

Number three written on white chat bubble on blue background
Investing Articles

Could these 3 holdings in my Stocks and Shares ISA really increase in value by 25% in 2026?

James Beard’s been looking at the 12-month share price forecasts for some of the positions in his Stocks and Shares…

Read more »

National Grid engineers at a substation
Investing Articles

2 reasons I‘m not touching National Grid shares with a bargepole!

Many private investors like the passive income prospects they see in National Grid shares. So why does our writer not…

Read more »

Number 5 foil balloon and gold confetti on black.
Investing Articles

£10,000 invested in Greggs shares 5 years ago would have generated this much in dividends…

Those who invested in Greggs shares five years ago have seen little share price growth. However, the dividends have been…

Read more »

Rolls-Royce Hydrogen Test Rig at Loughborough University
Growth Shares

Here is the Rolls-Royce share price performance for 2023, 2024, and 2025

Where will the Rolls-Royce share price be at the end of 2026? Looking at previous years might help us find…

Read more »

Investing Articles

This FTSE 250 stock could rocket 49%, say brokers

Ben McPoland takes a closer look at a market-leading FTSE 250 company that generates plenty of cash and has begun…

Read more »