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 much would I need in an ISA for a £2k monthly passive income?

Cash ISA, Lifetime ISA, or Stocks and Shares ISA? Royston Wild explains the potential impact of these products on one’s passive income.

| More on:
A retired couple review their investing portfolio

Image source: Getty Images

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.

Through generous tax relief, Individual Savings Accounts (ISAs) can significantly boost our chances of making a large passive income.

I myself own a Cash ISA and a Lifetime ISA, in which I hold cash to reduce risk. They sit alongside a Stocks and Shares ISA that I use to buy shares, trusts and funds.

XXX

My tax savings give me more money to reinvest and compound wealth. Yet with savings rates on cash-based ISAs falling, leaving too much money in one of these low-yielding products could jeopardise my chances of retiring comfortably.

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.

Thinking about the future

None of us can be fully certain how much extra income we’ll need to live comfortably in retirement. It’s impossible to guess how large the State Pension will be a few decades from now, nor the age at which we’ll be able to claim this benefit. It’s also tough to predict what the future cost of living and social care will be.

That said, having a rough figure in mind can provide direction and motivation during the retirement planning process. With this in mind, I believe aiming for a £2,000 monthly passive income, in addition to the State Pension, could be a decent target to consider.

Executing a plan

There are various ways anyone could try to hit this figure. One option is to invest in high-yield shares, funds and trusts. This way, they could draw down a regular income while giving their portfolio space for further healthy growth.

Dividends are never, ever guaranteed. But someone with an ISA portfolio of £480,000 could achieve a £2,000 monthly passive income if they invested in assets with dividend yields of 5%.

A great fund

But what would be the best way of targeting a £480k portfolio? Buying US shares is a path I think’s worth serious consideration, given the S&P 500‘s average annual return of 12.5% over the last decade.

That’s far ahead of the 5.16% interest rate that the best-paying, easy-access Cash ISA (from Trading212) currently offers. Based on this, a monthly investment of £560 would be needed over 30 years to get to that £480,000 portfolio.

But as I said at the top, savings rates are dropping in response to falling interest rates, so that 5.16% return might not be around for long.

By contrast, investing in S&P 500 shares could require a much smaller monthly contribution to reach the same goal. If the index continues to deliver its historical 12.5% annual return, an investor would only need £123 a month to build that £480,000 portfolio.

While this return isn’t guaranteed, I’m optimistic a fund like the iShares S&P 500 ETF (LSE:CSPX) will continue to deliver double-digit yearly returns. This reflects the index’s high concentration of fast-growing tech shares (like Nvidia and Microsoft); a robust long-term outlook for the US economy; and likely interest rate cuts from the Federal Reserve.

By holding hundreds of large US multinational shares, the fund allows investors to balance risk while simultaneously chasing growth. As well as technology stocks, it also provides large exposure to financial services, consumer goods and healthcare companies.

It’s true that future returns could be impacted by new trade tariffs among major economies. Yet on balance, I believe considering putting more money in funds like this over a Cash ISA could be better for building long-term wealth.

Royston Wild has no position in any of the shares mentioned. The Motley Fool UK has recommended Microsoft and Nvidia. 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

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

£503 buys 14 shares in this FTSE 250 stock that returned 23.9% annually for the last 15 years

This FTSE 250 stock has averaged a huge return for 15 years. At today's price, £503 buys 14 shares. But…

Read more »

Black woman using loudspeaker to be heard
Investing Articles

£1,000 buys 25 shares in this FTSE 100 stock that’s returned 29.2% annually for the last 10 years

This FTSE 100 mining stock has returned close to 30% a year for a decade. At 3,995p, £1,000 buys 25…

Read more »

Female student sitting at the steps and using laptop
Investing Articles

Down 47%, is this growth stock finally worth buying in May?

With a £288m order book and a hidden pipeline of defence and nuclear contracts, is this growth stock now too…

Read more »

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

2 REITs yielding 7%+ to consider for passive income in 2026

A REIT backed by the NHS and another backed by Tesco and Sainsbury's with both yielding 7%+. Here's why I'm…

Read more »

Woman riding her old fashioned bicycle along the Beach Esplanade at Aberdeen, Scotland.
Investing Articles

Just 97 shares of this UK dividend stock generate £238 in passive income

A 5.7% yield, £238 in passive income from just 97 shares, and one of the most divisive dividend stocks on…

Read more »

ISA coins
Investing Articles

£10,000 in an ISA generates a second income of…

The London Stock Exchange is home to some of the world's most generous dividends. But how big a second income…

Read more »

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

Expert recommendations: 2 top income stocks yielding 7%+!

With yields of 7.2% and 7.8% respectively, these two income stocks are catching the eyes of institutional analysts. Should investors…

Read more »

Illustration of flames over a black background
Investing Articles

3 top income-focused stocks to buy in May 2026, according to experts

Looking for a stock to buy for income in May 2026? Experts have flagged these three UK dividend shares as…

Read more »