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.

Putting aside £600 a month? Here’s how I’d aim for £108k in passive income

Millions of Britons aren’t earning a passive income they deserve. Here, Dr James Fox explains how he’d get his savings working harder.

Close-up of British bank notes

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.

For me, investing is the very best way to earn a passive income.

Buy-to-let is a popular option, but the returns aren’t what they used to be. Plus it’s rarely truly passive.

XXX

I’ve got to be honest too, I’m not a fan of buy-to-let from a moral perspective either.

Instead, investing allows me to generate strong returns without taking a leveraged position.

It’s also much easier to get my money in and out. Buying and selling a house can take months — I should know, I’ve been buying one since September.

Investing with regular savings

I don’t have to start investing with substantial starting capital. Instead, I can look to make regular contributions, starting from as little as £50 a month.

Today I’m looking at how I could build wealth and eventually earn a passive income with £600 a month. That might sound like quite a lot for one person.

However, this could equally represent a regular contributions of a couple — £300 each. Given many platforms have transaction charges, it may be beneficial to for a couple to invest as a couple in order to build a single diversified portfolio.

Investing versus savings

Returns compound over time. That’s a really important thing to remember.

When investing, I personally look to achieve around 12% annually. But if I left it in my savings account, I’d only get 2%.

In turn, this means after a year of investing, I could turn £1,000 into £1,120. But in my savings account that’d be £1,020.

It might sound like a lot of risk or faffing around for just £100. But as I noted, returns compound over time, meaning I’ll be earnings interest on my interest.

Compounding for glory

Compound returns result from reinvesting earnings, creating a snowball effect.

By consistently contributing to an investment, I can amplify the potential for wealth growth.

The initial investment earns returns, and these returns, in turn, generate more returns.

Over time, this compounding accelerates, significantly increasing the overall value of my investment.

It’s a powerful force for wealth accumulation through the multiplication of returns on both the principal and accumulated earnings.

Investing wisely

Investing wisely means, in part, following Warren Buffett’s first rule: “Never lose money.” It entails thorough research, assessing risks, and choosing fundamentally strong companies.

It also involves diversification and aligning investments with long-term goals. Buffett’s principle underscores the importance of prudent decision-making to minimise risks and foster sustained growth.

The thing is, many novice investors don’t follow this principle. And if I lose 50%, I’ve got to gain 100% to get back to where I started.

The end goal

If I invest £600 a month for 30 years, and achieve an annualised return of 10%, I’d have £1.36m. That’s quite the result.

At this moment, I could put all my money in dividend-paying stocks and receive something in the region of 8% at the high end.

This would involve investing in companies like Legal & General and Phoenix Group. However, that reflects the current market. There’s no guarantee I could do the same in 30 years.

Nonetheless, for the purpose of this example, if I had £1.36m invested in stocks paying an 8% yield, I receive £108,800 per year without having to touch the principal.

James Fox has positions in Legal & General Group Plc and Phoenix Group Holdings plc. 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 »