3 reasons why I’d buy FTSE 100 dividend stocks in an ISA to generate a passive income

The FTSE 100 (INDEXFTSE:UKX) offers the best passive income opportunities for investors in my opinion.

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.

Investors seeking to generate a passive income may be dissuaded from buying FTSE 100 shares due to their high recent volatility. This could continue in the coming months, with factors such as political risks and uncertain global GDP growth prospects having the potential to weigh on the index’s performance.

However, in the long run, the index appears to offer income appeal. Its income return is significantly higher than that offered by other mainstream asset classes, while tax-efficient accounts such as a Stocks and Shares ISA could lead to impressive net returns.

Furthermore, with the index offering long-term capital growth potential, now could be the right time to buy a diverse range of FTSE 100 shares.

Income prospects

At the present time, the FTSE 100 has a dividend yield of around 4.5%. This is significantly higher than the income returns available on other mainstream assets. For example, obtaining an interest rate greater than 1.5% on cash is difficult, while investment-grade bonds may also struggle to offer positive real-terms returns. Meanwhile, rising taxes and increasing house prices could mean that the net yields on buy-to-let investments are relatively low.

Furthermore, there is scope for dividend growth across the FTSE 100. It could benefit from its status as an internationally-focused index that has exposure to fast-growing economies, which may provide a tailwind to its members over the coming years.

Tax efficiency

A Stocks and Shares ISA is a simple and cost-effective means of investing tax-efficiently. It operates in much the same way as a standard share-dealing account, in terms of the investments that are available and the logistics of opening it. However, any capital invested through a Stocks and Shares ISA is not subject to tax, which means that investors can generate dividends in excess of the annual allowance of £2,000 without paying tax.

Therefore, investing through a Stocks and Shares ISA could allow you to net a 4.5% (or more) income return from investing in a diverse range of large-cap shares. Over time, this could produce a significant level of passive income, with a £20,000 annual ISA allowance likely to prove sufficient for most investors.

Growth potential

Alongside its passive income prospects, the FTSE 100 could deliver capital growth. This may, of course, be a secondary concern for income-seeking investors. However, it is easier to generate a generous income from a larger amount of capital, which could mean that the FTSE 100’s long-term growth outlook is relevant for all investors.

The index may have risen only modestly in the last 20 years, but its performance from inception in 1984 to the peak of the tech bubble in 1999 shows that it can deliver strong returns. During that time, it increased almost seven-fold in value. With a high current yield, the next 15-20 years could produce improving capital returns across the index, thereby making now the right time to buy a range of large-cap shares.

Peter Stephens 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

Young Caucasian man making doubtful face at camera
Dividend Shares

Will the Diageo share price crash again in 2026?

The Diageo share price has crashed 35.6% over one year, making it one of the FTSE 100's worst performers in…

Read more »

Investing Articles

Is Alphabet still one of the best shares to buy heading into 2026?

The best time to buy shares is when other investors are seeing risks. Is that the case with Google’s parent…

Read more »

Investing Articles

Could the Barclays share price be the FTSE 100’s big winner in 2026?

With OpenAI and SpaceX considering listing on the stock market, could investment banking revenues push the Barclays share price higher…

Read more »

Investing Articles

Will the Nvidia share price crash in 2026? Here are the risks investors can’t ignore

Is Nvidia’s share price in danger in 2026? Stephen Wright outlines the risks – and why some might not be…

Read more »

Middle-aged white man pulling an aggrieved face while looking at a screen
Growth Shares

I asked ChatGPT how much £10,000 invested in Lloyds shares 5 years ago is worth today? But it wasn’t very helpful…

Although often impressive, artificial intelligence has its flaws. James Beard found this out when he used it to try and…

Read more »

Portrait of pensive bearded senior looking on screen of laptop sitting at table with coffee cup.
Investing Articles

Did ChatGPT give me the best FTSE stocks to buy 1 year ago?

ChatGPT can do lots of great stuff, but is it actually any good at identifying winning stocks from the FTSE…

Read more »

Surprised Black girl holding teddy bear toy on Christmas
Investing Articles

Who will be next year’s FTSE 100 Christmas cracker?

As we approach Christmas 2025, our writer identifies the FTSE 100’s star performer this year. But who will be number…

Read more »

Businessman with tablet, waiting at the train station platform
Investing Articles

I asked ChatGPT for an 8%-yielding passive income portfolio of dividend shares and it said…

Mark Hartley tested artificial intelligence to see if it understood how to build an income portfolio from dividend shares. He…

Read more »