Cheap FTSE 100 shares: a once-in-a-decade opportunity to boost passive income?

Our writer explores whether buying undervalued FTSE 100 (INDEXFTSE:UKX) stocks for their portfolio could be a unique opportunity to boost passive income.

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.

2023 concept with upwards-facing arrows overlaid on a hand with one finger raised, pointing up

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.

Investing in FTSE 100 dividend shares is a tried-and-tested strategy for potentially building a lucrative long-term income stream. After all, the index is home to a 10 companies boasting yields of 7% and above at the time of writing.

What’s more, in a recent report comparing stock market valuations for the US, UK, Europe, Japan and Emerging Markets, fund manager Schroders found that across multiple metrics, the UK stock market is comparatively cheaper than other markets.

Combined with the prospect of falling interest rates as soon as inflation is under control, could this point to a once-in-a-decade chance for me to hoover up high-yield FTSE 100 shares at a discount?

Schroders’ report analysed a range of metrics. This included CAPE (cyclically adjusted price to earnings), forward price-to-earnings (P/E), trailing P/E, price-to-book and dividend yield.

Once calculated, the report compared these ratios to their 15-year median. The overarching result was that valuations continue to favour ex-US (i.e. non-US) markets, particularly the UK.

The UK stock market scored well on every metric with the exception of CAPE, which stands at 9% above its 15-year median.

Attractive amid volatile conditions

Investors like me are all too aware that UK stock market returns have lagged behind international peers for some time.

This is partly thanks to the dismissal of British shares as being boring and lacking exposure to exciting sectors like technology.

Nevertheless, this indicates that now could be an ideal opportunity for me to buy undervalued FTSE 100 shares.

In any case, amid a tumultuous economic environment, I value solid companies that can churn out reliable dividends.

Generous dividends

On top of being potentially undervalued, many Footsie shares boast attractive dividend yields. In fact, the UK’s blue-chip index offers a forward dividend yield of 4% a year.

Moreover, in 2022 AJ Bell expected almost every firm in the index to pay cash dividends to their shareholders.

Some companies pay out more dividends than others, and some firms have more sustainable payouts than others.

As such, I tend to favour companies such as Legal & General, Taylor Wimpey and British American Tobacco. I particularly admire these three for their generous yet sustainable dividend yields.

While no dividends are guaranteed and past performance is not an indicator of future results, currently each company has an attractive yield coming in above the 7% mark.

An ideal time to boost long-term passive income

Considering the above, I think this genuinely could be a once-in-a-decade opportunity for me to buy undervalued dividend shares.

Investing in high-yield UK stocks while they’re cheap would provide me with a major boost to my passive income. After all, it would enable me to capitalise on the low valuations I see on offer.

As a result, if I had some spare cash lying around, I’d hoover up as many cheap FTSE 100 dividend shares as possible as part of my long-term strategy to earn a passive income.

Matthew Dumigan has no position in any of the shares mentioned. The Motley Fool UK has recommended British American Tobacco P.l.c. 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

Investing Articles

$18.9bn! This British billionaire just smashed the S&P 500 with these stocks

This top investor easily beat the S&P 500 index in 2025, recording the largest hedge fund gain in history. How…

Read more »

National Grid engineers at a substation
Investing Articles

Up 24%! Are National Grid shares the FTSE 100’s newest growth play?

With a falling yield and a climbing price, Mark Hartley questions whether National Grid shares are shifting sides amid a…

Read more »

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

At a 5-year low, are Greggs’ shares now a screaming buy?

After a volatile few years, Greggs' shares suddenly look cheap again and Harvey Jones examines whether they're worth buying at…

Read more »

Investing Articles

Does this growth share have a 42% valuation gap that the market hasn’t woken up to yet?

This growth share is overlooked by much of the market, yet it appears deeply underpriced to fair value and offers…

Read more »

Hand flipping wooden cubes for change wording" Panic" to " Calm".
Investing Articles

Disaster averted! But a stock market crash isn’t off the cards yet

Trump may have tabled his recent trade tariff threats for now, but Mark Hartley questions whether a stock market crash…

Read more »

A pastel colored growing graph with rising rocket.
Investing Articles

Here’s how investors could aim for £9,039 in annual dividends from £20,000 in this FTSE 100 income share

Improving results and rising payouts mean this FTSE 100 income share could be one of the market’s least‑appreciated dividend income…

Read more »

Investing Articles

With zero savings, how you could follow Warren Buffett and start building wealth today

Warren Buffett generated two thirds of his immense wealth after the age of 65. And his simple investment lesson can…

Read more »

Young mixed-race woman jumping for joy in a park with confetti falling around her
Investing Articles

After rising 64%, is the Lloyds share price on course for 120p?

Lloyds' share price has risen by almost two-thirds since early 2025. Can it continue rising? Or is the FTSE 100…

Read more »