How much passive income an investor could earn if they put £250 a month in an ISA at 40

Harvey Jones shows how small, regular investments can flourish into a generous passive income to secure a comfortable retirement years down the line.

| More on:

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.

Little girl helping her Grandad plant tomatoes in a greenhouse in his garden.

Image source: Getty Images

A Stocks and Shares ISA is a brilliant way to generate passive income – by which I mean money people don’t have to work for.

By the time most of us hit 40, we’ve realised two things: time flies and work sucks. Okay, not all work sucks, but some does, and it would be nice to avoid that type if possible. Investors who have a second income have that power.

Possibly the easiest method of building a passive income is to invest in FTSE 100 dividend-paying shares.

How to retire on FTSE 100 shares

Most people don’t have enough money to tuck away all at once, but by drip-feeding in small amounts every month and reinvesting the dividends, the capital can build nicely over time.

Let’s say an investor started putting £250 a month into a Stocks and Shares ISA from age 40. That’s £3,000 a year. 

Not pocket change, but manageable for many. Starting at 40 and retiring at 67 gives 27 years of investing. 

Assuming a reasonable annual return of 7%, which is roughly the long-term average of the FTSE 100, that pot could snowball to £239,000 by retirement.

Now let’s say that pot threw off a 5% yield. That’s a second income of £11,950 a year, or about £995 a month. And all without touching the capital.

Stock markets are all over the place right now, thanks to Donald Trump’s tariffs, but this could also be a tempting time for far-sighted investors to snap up some FTSE 100 bargains.

A good example is insurance giant Aviva (LSE: AV.). It’s got caught up in current woes, inevitably, with the share price down 12% in the last week. Over 12 months, it’s pretty flat, but it’s up 93% over five years.

The stock also comes with a trailing yield of 6.88%. Factor in reinvested dividends, and the total return could be closer to 150%. Not too shabby. 

Don’t be fooled though. This is a tricky time to invest in any stock, Aviva included.

Last year, Aviva boasted £198bn of assets under management. That’s likely to have shrunk during the current craziness. That matters, because those assets help cover insurance risks. A recession triggered by Trump’s tariff war could hurt earnings, too.

A brilliant dividend but not guaranteed

February’s results were encouraging. Aviva reported a 20% rise in operating profit to £1.77bn, and hiked its dividend 7% to 35.7p. 

CEO Amanda Blanc said the company had “completely transformed” over the past four years and was “in great shape” for the next phase.

That optimism is great, but the next phase is starting out badly as Trump triggers turmoil, so investors should take those results with a pinch of salt.

And while that 6.88% yield is eye-catching, it may not hold up if profits fall sharply. Also worth noting: with a price-to-earnings ratio over 20, Aviva’s not especially cheap.

I think Aviva is worth considering for long-term investors who can face down the current volatility. No share should be picked in isolation though. It needs to sit comfortably in a well-diversified portfolio of 15 to 20 holdings.

For me, £250 a month into an ISA isn’t just investing – it’s buying future freedom. Especially if it helps lock in a retirement income around £12k a year.

Harvey Jones has no position in any of the shares mentioned. 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

Investing Articles

Suddenly investors can’t get enough of GSK shares! What’s going on?

After years in the doldrums, GSK shares are suddenly the most bought stock on the entire FTSE 100. Harvey Jones…

Read more »

'2024' art concept overlaid on a stock screener
Investing Articles

£5,000 invested in Greggs shares in October 2024 is now worth…

Despite facing a multitude of challenges today, might Greggs' stock be worth a look after losing well over a third…

Read more »

Investor looking at stock graph on a tablet with their finger hovering over the Buy button
Investing Articles

Where will Rolls-Royce shares go next? Let’s ask the experts

Rolls-Royce shares have wobbled as aviation uncertainty grows. But can the City's glowing forecasts help get the price climbing again?

Read more »

Two female adult friends walking through the city streets at Christmas. They are talking and smiling as they do some Christmas shopping.
Investing Articles

No savings at 45? Here’s how investors could still build a £17,360 second income

It’s never too late to start investing, and with compounding working over time, Andrew Mackie shows how investors could still…

Read more »

House models and one with REIT - standing for real estate investment trust - written on it.
Investing Articles

How to invest £10,000 to aim for a £6,108 annual passive income

UK REITs have been getting a lot of attention. But our author thinks they're still the place to look for…

Read more »

Close-up of a woman holding modern polymer ten, twenty and fifty pound notes.
Investing Articles

What sort of passive income stream could you build for a fiver a day?

Think a few pounds a day might not go far? In fact, that could be the basis of some pleasing…

Read more »

British Isles on nautical map
Investing Articles

I sense a potential opportunity if the FTSE 100 loses this quality growth stock…

Rightmove falling out of the FTSE 100 might have been unthinkable a year ago. But that's the reality investors are…

Read more »

The flag of the United States of America flying in front of the Capitol building
Investing Articles

The largest S&P 500 holding in my ISA is…

Edward Sheldon's making a large bet on this S&P 500 stock. Because he sees the long-term risk/reward proposition very attractive.

Read more »