How much do you need in an ISA to target a £40k annual passive income?

Here’s how investing in UK and US shares could turn £500 a month in a Stocks and Shares ISA and Cash ISA into a large second income.

| 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.

Shot of a senior man drinking coffee and looking thoughtfully out of a window

Image source: Getty Images

The tax benefits of an Individual Savings Account (ISA) allow investors to significantly boost their chances of creating substantial long-term wealth.

With the Stocks and Shares ISA and Cash ISA — the two most popular products in this range — Britons can save or invest up to £20,000 a year. By doing so, they don’t have to pay a single penny in tax on interest, capital gains, or dividend income.

But the difference in what users of these products can expect to make over time varies considerable for each one. With this in mind, here’s how an individual targeting a £40,000 passive income in retirement could hit this ambitious target.

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.

Prioritising UK and US shares

Before I begin, I’d like to state that I own one of each of these ISAs. In fact, I also hold cash savings in a Lifetime ISA (annual allowance: £4,000). This gives me an added tax relief boost, which for me is worth the age-related withdrawal restrictions that the Cash ISA and Stocks and Shares ISA don’t have.

But I don’t treat these accounts equally. By some distance, the majority of my surplus cash is parked in my higher-returning shares ISA. I only put money in those other two ISAs to manage risk (and in the case of the Cash ISA, to give me access to emergency cash).

Since 2015, the average annual return on the FTSE 100 and FTSE 250 indexes is 7.2% and 5.1%, respectively. For US shares listed on the S&P 500, the return is even higher at 13.1%.

By comparison, the average savings account interest rate over the period sits way back at 1.2%.

Targeting a £40k+ income

Based on this, an investor looking to make an annual passive income above £40k in retirement could consider putting 80% of their cash in UK and US shares, and the remaining 20% in stable savings accounts.

If they invested £500 monthly, they’d have a pension pot of £703,589 if investing for 30 years. That’s assuming they achieve an 8.5% average return on their Stock and Shares ISA — mimicking the long-term average of the FTSE 100, FTSE 250 and S&P 500 — and 1.2% on their Cash ISA.

This fund then invested in 6%-yielding dividend shares would provide a subsequent £42,215 retirement income (although that’s in no way guaranteed).

A top trust

One cheap and easy way to target the wealth-building power of UK and US shares could be to buy an investment trust. The F&C Investment Trust (LSE:FCIT) is one such financial vehicle to consider for this strategy.

North American equities dominate the portfolio, comprising 62.7% of total holdings. Notably it enjoys high exposure to the ‘Magnificent Seven’ tech stocks Nvidia, Apple, Microsoft, Alphabet, Tesla, Meta and Amazon too, providing it with excellent growth potential.

Elsewhere, UK shares form its second-largest regional weighting, comprising 9.7% of the whole portfolio. Major names here include FTSE 100 stocks HSBC, Vodafone and RELX.

As with other share-focused trusts, F&C is vulnerable to periods of broader stock market weakness. But its powerful long-term performance helps soothe (if not eliminate) any fears investors may have.

Since 2015, it’s delivered an average annual return of 11.6%. If this continues, an investor here could hit their £40k passive income target far sooner.

HSBC Holdings is an advertising partner of Motley Fool Money. Royston Wild has positions in HSBC Holdings. The Motley Fool UK has recommended Alphabet, Amazon, Apple, HSBC Holdings, Meta Platforms, Microsoft, Nvidia, RELX, Tesla, and Vodafone Group Public. 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

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

£5,000 invested in BAE Systems shares a month ago is now worth…

BAE Systems shares have been among the FTSE 100's best performers in recent years. The question is, can the defence…

Read more »

A senior man and his wife holding hands walking up a hill on a footpath looking away from the camera at the view. The fishing village of Polperro is behind them.
Investing Articles

Here’s how a £20k ISA could generate £7,875 in monthly passive income

Have £20,000 ready to invest? Royston Wild explains how you could put this in a Stocks and Shares ISA to…

Read more »

Middle-aged white man wearing glasses, staring into space over the top of his laptop in a coffee shop
Investing Articles

By April 2027, £2,630 invested in Barclays shares could be worth…

Barclays shares have been flying. But what might happen to a chunk of money invested in the bank's stock over…

Read more »

Satellite on planet background
Investing Articles

MTI Wireless Edge: the 61p defence penny stock that’s delivered 10x the return of Rolls-Royce shares in 2026

Edward Sheldon has spotted a penny stock in the defence space that offers growth, value, dividend income, and share price…

Read more »

Happy woman commuting on a train and checking her mobile phone while using headphones
Investing For Beginners

Is this the biggest bargain in the FTSE 100 right now?

Jon Smith reviews a FTSE 100 stock that's fallen by 18% so far this year that he believes could be…

Read more »

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

Will Rolls-Royce shares soar to £17.40 or sink to 900p?

Rolls-Royce shares have surged almost 90% in value over the last 12 months. Can the FTSE 100 company repeat the…

Read more »

A quiet morning and an empty Victoria Street in Edinburgh's historic Old Town.
Investing Articles

£10,000 invested in Scottish Mortgage shares 5 weeks ago is now worth…

Why have Scottish Mortgage shares displayed resilience in the FTSE 100 index since the war in Iran started a few…

Read more »

A pastel colored growing graph with rising rocket.
Investing Articles

How can I target £14,132 a year in dividend income from a £20,000 holding in this FTSE 250 dividend gem?

This FTSE 250 dividend heavyweight keeps generating market-beating yields, with forecasts of more to come as earnings momentum continues to…

Read more »