We have some exciting news to share! The Motley Fool UK has now become 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. We’ll be introducing a new name and brand over the coming weeks — we're very excited to share it with you and embark on this new chapter together!

How much second income could an investor generate from a £20k ISA?

Harvey Jones does the sums to calculate how much second income a Stocks and Shares ISA investor could get from just three FTSE 100 high-yielders.

| 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.

Middle aged businesswoman using laptop while working from home

Image source: Getty Images

I love big, fat, juicy high-yielding FTSE 100 second income stocks. My love grows every time they send me a big, fat, juicy dividend – which I automatically reinvest to buy more shares.

I added the three biggest FTSE 100 yielders to my portfolio at various points in 2023. The income and growth they offer is already starting to compound nicely.

In one respect, this was a risky manoeuvre, because all three are in the same sector, one that was out of favour at the time: financial services.

FTSE 100 high yield stars

The stocks are wealth manager M&G (LSE: MNG), insurer and asset manager Legal & General Group and insurance conglomerate Phoenix Group Holdings. They offered king-sized yields when I bought them and, as this table shows, they’re still paying a pretty handy income today.

StockTrailing yield1-year growth5-year growth
M&G7.88%27.5%67.2%
Legal & General8.42%5.1%14.1%
Phoenix Group8.23%35.6%2.5%

High dividends have to be treated with caution. Often, they’re a result of an underperforming share price. Yields are calculated by dividing a company’s dividend per share by its share price. If the price drops, the yield automatically rises.

All three struggled while investors chased growth areas such as US tech or sought risk-free yields from cash and government bonds. But this year, they’ve staged a bit of a rally.

M&G shares are flying!

M&G’s had a brilliant month. Its shares are up almost 17%, boosted by news that Japan’s Dai-ichi Life Holdings has chosen it as its preferred asset management partner in Europe. M&G anticipates at least $6bn in new fund flows over the next five years as a result. Over one year, the M&G share price is up 27.5%.

M&G shares were already in demand after a solid 2024, when operating profit before tax climbed 5% to £837m in 2024, helped by a 19% increase in asset management profits.

It still faces challenges. The group suffered £1.9bn of net outflows last year amid market volatility, and the shift to passive investing is a threat. It also needs to expand into new areas to keep profits rolling in – but many of these, notably bulk annuities, are fiercely competitive.

Like most stocks, it’ll have good years and bad. The dividend’s now set to grow by just 2% a year. Happily, it’s starting from a high base.

£20k, £1,636 income

Let’s say an investor considered splitting a £20,000 Stocks and Shares ISA equally between these three. Something they should only consider doing if they already have exposure to a spread of other sectors.

Today, the average dividend yield across the trio is 8.18%. That would generate income of £1,636 in year one, with any capital growth on top.

With luck, that income should grow next year – even if only by a couple of percentage points – as these three companies aim to increase shareholder payouts.

And by reinvesting those dividends, they’d buy more shares, generating even more income in future.

No guarantees, of course. And as I said, I wouldn’t start a portfolio just with three financials. But I think they’re well worth considering for long-term investors seeking maximum passive income and, with luck, a spot of growth along the way.

Harvey Jones has positions in Legal & General Group Plc, M&g Plc, and Phoenix Group Plc. The Motley Fool UK has recommended M&g Plc. 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

One English pound placed on a graph to represent an economic down turn
Investing Articles

Are we approaching a full-blown stock market crash?

Despite the war in Iran, we've avoided a stock market crash so far. Harvey Jones is gearing up to buy…

Read more »

Young mixed-race couple sat on the beach looking out over the sea
Investing Articles

This S&P 500 giant is building a global super app

If this household S&P 500 company achieves its ultimate aim, it could become a hell of a lot bigger in…

Read more »

Friends at the bay near the village of Diabaig on the side of Loch Torridon in Wester Ross, Scotland. They are taking a break from their bike ride to relax and chat. They are laughing together.
Investing Articles

How to target a £1m Stocks and Shares ISA by investing £511 a month

Fancy becoming a Stocks and Shares ISA millionaire? Harvey Jones thinks this long-term investment strategy could help you get there…

Read more »

A senior group of friends enjoying rowing on the River Derwent
Investing Articles

How much do investors need in an ISA to target a £31,353 yearly passive income

Harvey Jones shows how building a portfolio of FTSE 100 shares can generate enough passive income to enjoy a truly…

Read more »

Man smiling and working on laptop
Investing Articles

These 3 ‘secret’ dividend shares could be top stocks to buy in May!

Forget FTSE 100 dividend shares. And look past the FTSE 250 for passive income. Here are three lesser-known dividend stocks…

Read more »

Friends and sisters exploring the outdoors together in Cornwall. They are standing with their arms around each other at the coast.
Investing For Beginners

How much is needed in an ISA for a £35,828 passive income from FTSE shares?

Royston Wild reveals how a Stocks and Shares ISA invested in FTSE 100 shares could deliver a huge passive income…

Read more »

Hydrogen testing at DLR Cologne
Investing Articles

17% below their 52-week high, is now an opportunity to consider Rolls-Royce shares?

Rolls-Royce Holdings shares have fallen significantly since March. James Beard asks whether now could be a good time for latecomers…

Read more »

Thoughtful man using his phone while riding on a train and looking through the window
Investing Articles

Just Released: Our Top Defence Stock For ISAs In May 2026 [PREMIUM PICKS]

Fire stock picks will tend to be more adventurous and are designed for investors who can stomach a bit more…

Read more »