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

Putting £500 aside each month? Here’s how I’d aim for £90,400 in passive income

Passive income is the holy grail of investing for many of us. However, reaching a position where it’s actually life-changing can take time.

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.

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.

Plenty of us put a bit of cash aside each month. But not all of us make that money work as hard as it could do. And unfortunately, that’s what we need to do if we want our savings to turn into passive income.

So how can I turn my monthly savings into a monster passive income?

Savings accounts

The majority of us in the UK put our money in savings accounts rather than investing in stocks and shares. In fact, as a country, our participation in the stock market is quite low, at just 8%. Meanwhile, Britons have ploughed over £1.8trn into savings accounts rather than investing.

Obviously, it’s great that we’re putting money aside. However, savings accounts don’t offer the best rates of return.

For example, my HSBC savings account is currently offering me 2% AER, and that’s up from 0.25% over the past decade.

If I had left my money in there, I really wouldn’t have seen much growth. And looking forward, I still wouldn’t be getting much in the way of interest.

Just look at the example below. Here, I’ve assumed AER of 1% on average over 30 years while putting aside £500 a month — which is my personal aim.

Created at thecalculatorsite.com

But as we can see, the accrued interest is only a fraction of my deposits. After 30 years, I’d have £209k, with £29k of that being interest.

We can do much better.

Investing and compounding

On the other hand, investing is more risky, but offers the opportunity for much better returns. In fact, novice investors aim for returns in the realm of 6-10%, while I aim for annualised returns in low double digits.

And, of course, these returns compound over time. Compound returns mean earning money not just on the original investment, but also on the money I’ve already made.

It’s like making interest on my interest. Over time, this snowball effect can grow my wealth faster, as my earnings keep building on themselves.

As we can see from the example below, the growth rate is exponential as my money compounds year after year. Here’s how £500 a month grows with a 10% annualised return. After 30 years, I’d have £1.13m.

Created at thecalculatorsite.com

Generating passive income

Once I’ve generated a level of wealth that I’m happy with, I can then think about generating passive income. The easiest way to do this would be to transition my investments towards dividend-paying stocks.

Of course, we’re talking 30 years’ time but, at the moment, I’d invest in companies like Legal & General and Phoenix Group which offer dividend yields of 8.1% and 10.1% respectively.

If I were able to achieve an average dividend yield of 8% with a portfolio of £1.13m, I’d be earning £90,400 a year in passive income. That’s a really healthy return, even though inflation would make it worth a lot less than it is today.

It all sounds great, but I’ve got to be wary of making mistakes. Many novice (and experienced) investors get it wrong and lose money. I also have to remember that I might undershoot my percentage returns target. That’s why I need to use the array of resources available to me, including The Motley Fool.

HSBC Holdings is an advertising partner of The Ascent, a Motley Fool company. James Fox has positions in HSBC Holdings, Legal & General Group Plc and Phoenix Group Holdings plc. The Motley Fool UK has recommended HSBC Holdings. 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

Rolls-Royce's Pearl 10X engine series
Investing Articles

Can the Rolls-Royce share price do it again in 2026?

Can the Rolls-Royce share price do it again? The FTSE 100 company has been a star performer in recent years…

Read more »

Businessman hand flipping wooden block cube from 2024 to 2025 on coins
Investing Articles

After huge gains for S&P 500 tech stocks in 2025, here are 4 moves I’m making to protect my ISA and SIPP

Gains from S&P tech stocks have boosted Edward Sheldon’s retirement accounts this year. Here’s what he’s doing now to reduce…

Read more »

View of Lake District. English countryside with fields in the foreground and a lake and hills behind.
Investing Articles

With a 3.2% yield, has the FTSE 100 become a wasteland for passive income investors?

With dividend yields where they are at the moment, should passive income investors take a look at the bond market…

Read more »

Smart young brown businesswoman working from home on a laptop
Investing Articles

Should I add this dynamic FTSE 250 newcomer to my Stocks and Shares ISA?

At first sight, a UK bank that’s joining the FTSE 250 isn’t anything to get excited by. But beneath the…

Read more »

Investing Articles

£10,000 invested in BT shares 3 months ago is now worth

BT shares have been volatile lately and Harvey Jones is wondering whether now is a good time to buy the…

Read more »

Person holding magnifying glass over important document, reading the small print
Investing Articles

After a 66% fall, this under-the-radar growth stock looks like brilliant value to me

Undervalued growth stocks can be outstanding investments. And Stephen Wright thinks he has one in a company analysts seem to…

Read more »

Content white businesswoman being congratulated by colleagues at her retirement party
Investing Articles

Don’t ‘save’ for retirement! Invest in dirt cheap UK shares to aim for a better lifestyle

Investing in high-quality and undervalued UK shares could deliver far better results when building wealth for retirement. Here's how.

Read more »

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

1 growth and 1 income stock to kickstart a passive income stream

Diversification is key to achieving sustainable passive income. Mark Hartley details two broadly different stocks for beginners.

Read more »