How much do you need in an ISA to target a £30,000 second income?

Here’s a look at how we might plan to pocket a five-figure annual second income to help fund our retirement, by investing in UK shares.

| 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.

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

Image source: Getty Images

More and more, the prospects of a comfortable retirement hinge on building up an independent second income.

What might it take to earn £30,000 per year? It depends on aiming for a realistic annual return — and the sum we then need to accumulate.

Is 7% per year achievable, say from UK dividend shares in a Stocks and Shares ISA? I think so. Let me explain why.

A great track record

Over the past 10 years, Stock and Shares ISAs have averaged a return of 9.6% per year. That doesn’t mean the next decade will be the same. But if we look back 20 years, the FTSE 100 has returned an average of 6.9% per year.

The further back we look, the more we see profits from UK public companies beating other forms of investment.

Do I believe the UK stock market will continue in the winning ways we’ve seen for well over a century now? Let’s put it this way… if working companies can’t continue to generate new wealth, I don’t know where else it’s going to come from.

UK tops for dividends

The UK stock market is brilliant for dividends. In the US, investors might have their sights firmly fixed on stock price growth. But over there, 2% or 3% is considered a good dividend yield.

In the UK, the FTSE 100 tends to average between 3% and 4%. And the top payers in the index can often offer two or three times that. Right now, I count eight stocks with forecast dividends over 6%.

Dividends aren’t guaranteed. But these two facts — the UK’s dividend tradition coupled with a great track record — convince me 7% per year can be achievable.

Nearly half a million!

Put 7% returns together with that £30,000 annual income goal — and we’d need close to £430,000. That’s more than 20 years’ maximum ISA allowance.

But that ignores the effects of compounding. If we can hit 7% per year and reinvest dividends in more shares, it could take less than 14 years.

The amount of the allowance we can use depends on each individual. But by taking a long-term approach, and investing as much as we can every month, these ambitions really can be within reach.

A fat 9% yield

I’m thinking of adding Legal & General (LSE: LGEN) to my ISA holdings, for its forecast 9% dividend yield.

Aside from the yield, I’ve always liked insurance companies for their long-term cash generation potential. Income can be variable though, so there’s probably more risk of dividend ups and downs with a stock like this. And the sector is at risk from economic turmoil perhaps more than most. That’s why I say diversification plus a long-term horizon is a must.

The shares can be a bit volatile too. The Legal & General share price is up 23% over the past five years — but that’s all due to a spike in late 2020. Since then it’s been largely sideways.

Still, if all I want is my dividend cash and I have no plans to sell the shares, the price shouldn’t matter. Well, I say that… but future falls would mean I could buy even more with my reinvested dividend cash!

Alan Oscroft 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

Close-up of British bank notes
Investing Articles

£9,000 in savings? Here’s how to try and turn that into a £193 monthly second income

With a long-term approach and applying basic principles of good investment, our writer reckons someone with under £10k could earn…

Read more »

Investing Articles

A 2026 stock market crash could be a rare passive income opportunity

If a stock market crash comes our way then it might throw up plentiful opportunities for investors to secure a…

Read more »

Tesla car at super charger station
Investing Articles

£10,000 invested in Tesla stock 1 year ago is now worth…

Dr James Fox takes a closer look at Tesla stock with the incredibly volatile mega-cap company surging and pulling back…

Read more »

British pound data
Investing Articles

My personal warning for anyone tempted by the plunging Aston Martin share price

Harvey Jones was so captivated by the plunging Aston Martin share price that he ignored an old piece of investment…

Read more »

Stacks of coins
Investing Articles

This penny share just crashed 13% to 19p! Time to buy?

After another fall today, this penny stock has now crashed 70% since April 2021. Is it one that should be…

Read more »

Trader on video call from his home office
Investing Articles

Down 19%! Here’s why Barclays shares look a serious bargain to me right now

Barclays shares have slumped recently, but a big gap between price and fair value has opened, offering nimble long-term investors…

Read more »

CEO Mark Zuckerberg at F8 2019 event
Investing Articles

Why Meta Platforms shares fell 12.5% in March

Historically, investors have done well by buying Meta Platforms shares when the price has fallen. But is the latest legal…

Read more »

Arrow symbol glowing amid black arrow symbols on black background.
Investing Articles

£20,000 invested in BAE Systems shares 4 years ago is now worth…

BAE Systems' shares have soared since 2022, yet rising NATO budgets are just starting to feed through, so the real…

Read more »