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.

How I’d invest my £20k ISA allowance to earn a second income of £1,632 a year

Now looks like a terrific time to generate a second income from investing in FTSE 100 dividend stocks, tax-free in an ISA.

Middle-aged Caucasian woman deep in thought while looking out of the window

Image source: Getty Images

You’re reading a free article with opinions that may differ from The Twelfth Magpie’s Premium Investing Services. Become a member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn more, and get a free 'Best Buy Now' stock!.

Investing in an ISA is a brilliant way to generate a second income because it will be completely free of tax for life.

If I invest in a Stocks and Shares ISA, I won’t have to pay a penny in capital gains tax (CGT) on my share price growth. All the company dividends I receive are free of income tax too.

Should you buy Rolls Royce shares today?

Before you decide, please take a moment to review this report first. Despite ongoing uncertainties from US tariffs to global conflicts, Mark Rogers and his team believe many UK shares still trade at substantial discounts, offering savvy investors plenty of potential opportunities to learn about.

That’s why this could be an ideal time to secure this valuable research – Mark’s analysts have scoured the markets to reveal 5 of his favourite long-term ‘Buys’. Please, don’t make any big decisions before seeing them.

That’s more important than ever, now that Chancellor Jeremy Hunt has slashed the annual CGT threshold to just £6,000 and halved the dividend allowance to £500, for stocks held outside the ISA wrapper.

Please note that tax treatment depends on the individual circumstances of each client and may be subject to change in future. The content in this article is provided for information purposes only. It is not intended to be, neither does it constitute, any form of tax advice. Readers are responsible for carrying out their own due diligence and for obtaining professional advice before making any investment decisions.

I’m hungry for dividends

I’m looking to generate maximum income by investing in high-yielding FTSE 100 shares. I’ll reinvest all my shareholder payouts straight back into my portfolio today. When I retire, I’ll draw them as income.

The FTSE 100 has recovered nicely since the banking crisis, but I can still find plenty of top dividend stocks trading at cheap valuations.

Every UK adult has just been handed a new £20,000 ISA allowance, for the 2023/24 tax year. Most of us won’t be able to invest the full amount, but I’m still going to invest as much as I can.

I’ve just counted 18 FTSE 100 stocks yielding 5% or more. Of these, 12 yield at least 7% or more, giving me scope to build an impressive second income.

I always approach high-yielding stocks with caution. They can be a sign of a company in trouble, as a falling share price drives up the yield. Sky-high dividends can quickly become unsustainable. 

Last autumn, for example, housebuilder Persimmon and mining giant Rio Tinto yielded around 20% and 10% respectively. Both have since slashed their shareholder payouts.

My yield target is 7% or more

I’d like my second income to be sustainable and would get my income stock picks down to five at the safer end of the scale.

Housebuilder Taylor Wimpey yields 8.17%, Rio Tinto yields 7.46%, insurer Aviva yields 7.43%, Imperial Brands yields 7.42% and asset manager M&G yields 10.31%.

These five companies combined offer an average yield of 8.16%. If I split my £20,000 ISA contribution limit evenly between them, investing £4,000 in each, I’d generate income of £1,632 in the first year. That’s £136 a month.

Naturally, there are risks. Taylor Wimpey could suffer if house prices crash. Rio Tinto has just cut its dividend (although this may argue against another cut). M&G’s double-digit yield looks particularly suspect, but management expects to generate £2.5bn of cash this year. If it does, the payout should hold. I’ll reduce the dangers by doing my research and investing for the long term.

If all goes well, my income should rise over time, as these companies increase profits and boost their dividends over time. Even if one or two are cut, I should still generate a pretty healthy level of income. I feel the rewards far outweigh the risks.

Harvey Jones has positions in M&g Plc, Persimmon Plc, and Rio Tinto Group. The Motley Fool UK has recommended Imperial Brands 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

Mother At Home Getting Son Wearing Uniform Ready For First Day Of School
Investing Articles

Most Britons miss out on the first 20 years of investment compounding. Here’s how a Junior ISA or SIPP can change that

Compounding is the secret to building wealth. And with a Junior SIPP or individual savings account, children in the UK…

Read more »

4 Teslas in a parking lot at a charger station
Investing Articles

I missed out on Tesla stock. So should I buy SpaceX?

Christopher Ruane missed out on the years of surging Tesla stock values, because he hadn’t invested. Could SpaceX offer him…

Read more »

View over Old Man Of Storr, Isle Of Skye, Scotland
Investing Articles

If you had maxed your ISA for 20 years, here’s the passive income it could now generate

Andrew Mackie asks what 20 years of ISA investing could be worth — and why consistency matters more than contribution…

Read more »

Young female hand showing five fingers.
Investing Articles

3 reasons to consider buying Barclays shares for an ISA or SIPP at £5

Barclays' shares have moved higher recently. And Edward Sheldon sees the potential for further gains given the banking backdrop.

Read more »

Young black colleagues high-fiving each other at work
Investing Articles

How UK shares could build a £339,849 ISA

Is it really possible to achieve a substantial six-figure ISA by investing in UK shares? Based on recent history, James…

Read more »

many happy international football fans watching tv
Investing Articles

The World Cup guide to the FTSE 100

With the World Cup in full swing, Stephen Wright lines up the FTSE 100 against the world's footballing nations. And…

Read more »

Warren Buffett at a Berkshire Hathaway AGM
Investing Articles

No savings at 50? Here’s how to use the Warren Buffett method to target substantial retirement wealth

Warren Buffett made most of his fortune after 50. His stock-picking method could help build a £661,000 retirement pot when…

Read more »

Engineer Project Manager Talks With Scientist working on Computer
Investing Articles

Forget the AI hype! UK stocks offer tangible returns at bargain prices

Stephen Wright thinks investors who prefer proven businesses while everyone else focuses on unprofitable startups should check out UK stocks.

Read more »