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!

How big does an ISA need to be to aim for a £1,500 monthly second income?

Harvey Jones shows how building a balanced portfolio of FTSE 100 dividend stocks can produce a high-and-rising second income in retirement.

| More on:
DIVIDEND YIELD text written on a notebook with chart

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.

The stock market doesn’t just deliver capital growth, it can generate a valuable second income stream from company dividends. These can be reinvested to accelerate growth then taken to fund spending in retirement.

Either way, that income is tax-free inside a Stocks and Shares ISA. So how large does an investor’s portfolio need to be to target £1,500 a month income, which adds up to £18,000 a year?

XXX

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.

Dividend power

Under the so-called 4% safe withdrawal rule, taking that proportion of a portfolio each year as income should preserve the underlying capital. On that basis, a portfolio of £450,000 is required to generate £18,000 a year.

If the investor is happy to draw down some of their capital as well, to increase the annual return to say, 7% a year, the required portfolio falls to £257,000. This approach demands close monitoring to make sure the capital doesn’t run dry.

Another route is to invest in higher-yielding FTSE 100 shares and draw dividends as income. If the portfolio yields on average 5% a year, the investor potentially earns £18k from £360,000, with no capital withdrawals. As my figures show, this is a movable feast. It depends on the investor and the stocks they buy.

There are some eye-popping yields on the FTSE 100 today. Insurer Legal & General Group yields 8.4% on a trailing basis, while Standard Life sits close behind at 7.9%. High yields can be hard to sustain, as companies need strong cash flows to fund them. I hold both stocks, and think they look reasonably secure for now, but I balance them with a spread of other dividend stocks.

Imperial Brands: dividend hero

Tobacco companies have been a terrific source of dividends and growth for years, and the FTSE 100 boasts two big names: British American Tobacco and Imperial Brands (LSE: IMB).

Smoking is a health hazard and regulation’s tight, but the addictive nature of the product delivers resilient cash flows and reliable dividends. Imperial Brands has increased shareholder payouts every year this millennium, except in the 2020 pandemic year. The current trailing yield is 5.1%. Forecasts suggest it will climb to 5.47% this year and 5.75% in 2027.

Investors have also enjoyed plenty of share price growth on top. The Imperial Brands’ share price has climbed 8.75% over the last year and an impressive 84% over two.

After that strong run, the Imperia Brands price-to-earnings ratio has crept up to 12.5. It’s not expensive, but not an absolute bargain. There are risks. Further regulation, especially around vaping, could hit revenues. Earnings could also fall if smoking rates in emerging markets decline as they have in the West. After such a strong recent run, the shares could naturally ease up for a while.

I think Imperial Brands is worth considering as a long-term hold for income-focused investors comfortable with buying Big Tobacco. Only invest as part of a balanced portfolio, across a range of income stocks from different sectors. Today’s stock market volatility is throwing up plenty of bargain buying opportunities.

Harvey Jones has positions in Legal & General Group Plc and Standard Life. 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

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 »