Looking for a passive income? I’d buy the FTSE 100 index

The FTSE 100 provides the perfect blend of international diversification and growth for income investors.

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.

If you’re looking for a passive income stream, the FTSE 100 could help you hit this goal. The FTSE 100 is one of the most income-focused stock indices in the world. It currently supports a dividend yield of nearly 4.7%, which is higher than almost any other developed market stock index. And that’s not the Footsie’s only attractive quality.

Global income

The leading index’s dividend yield is an aggregation of all of the dividends of its constituents. So, in effect, 100 different companies contribute to the distribution.

This suggests the dividend is also very sustainable. Indeed, for the yield to fall to zero, every member would have to eliminate their payouts. That’s unlikely ever to happen.

One or two companies might cut their distributions in a single year, but the diversified nature of the FTSE 100 suggests income investors have plenty of protection.

More than 70% of the index’s profits also come from outside the UK. What’s more, there’s not one single sector that has a disproportionate impact on the FTSE 100.

This diversification has helped the index navigate some tough times. For example, in 2008, when the banks were in trouble, mining stocks helped support the index. When the miners crashed several years later, consumer goods companies picked up the slack. Now banks are back in vogue (from an income perspective anyway).

Income and growth

The FTSE 100’s diversification has also helped the index’s growth, and this should continue. In theory, company earnings should expand inline with inflation at a minimum over the long run.

That suggests growth of 2% to 3% per annum over the long run. In theory, this earnings growth should have a knock-on effect on stock prices.

On top of this, there’s that 4.7% dividend yield. Added together, these figures suggest investors can look forward to a total return (income and capital growth) of between 6.7% to 7.7% over the long run.

These numbers are slightly below the FTSE 100’s historical average. The index has returned approximately 8% per annum since its inception. However, it’s always better to have a margin of safety when trying to estimate long-term market returns.

Index fund

Another advantage of using the FTSE 100 to generate a passive income is that it’s straightforward to track the index. There are FTSE 100 tracker funds on the market that currently charge less than 0.1%.

All these funds do is track the index, so there’s no risk of the fund manager picking the wrong stocks. It’s also helpful for investors who want to generate a passive income from dividend stocks, as picking income investments can be a tricky process.

The power of compounding

If you own a low-cost FTSE 100 tracker fund, all you need to do is sit back and let the power of compounding do its work.

For example, an investment of £20k in a FTSE 100 tracker, with additional contributions of £200 a month, could yield an investment pot of £136k after 15 years. That could be enough to throw off an annual passive income of nearly £8.2k a year, based on the FTSE 100’s current dividend yield of 4.7%. 

Rupert Hargreaves owns no share 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

This way, That way, The other way - pointing in different directions
Investing Articles

As the FTSE indexes sink, these unique dividend shares are making investors money

These two dividend shares are in positive territory for the month and outperforming the major FTSE indexes by a significant…

Read more »

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

Down 15% in days, are Rolls-Royce shares suddenly a bargain again?

Rolls-Royce shares have been heading south over the past couple of weeks. This writer thinks that makes sense -- but…

Read more »

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

What would a 40-year-old need to put into an empty SIPP to target monthly passive income of £1,000?

From a standing start at 40, how might someone target a four-figure monthly income stream from their SIPP? Christopher Ruane…

Read more »

British flag, Big Ben, Houses of Parliament and British flag composition
Investing Articles

As the ISA deadline approaches, UK investors have the opportunity to buy cheap shares

In recent weeks, equity markets have fallen significantly due to the conflict in the Middle East. As a result, many…

Read more »

Array of piggy banks in saturated colours on high colour contrast background
Investing Articles

£5k left in a Stocks and Shares ISA? 2 top ETFs to consider buying in April

Ben McPoland highlights a pair of very different ETFs that he thinks could help generate long-term wealth inside an ISA…

Read more »

Two business people sitting at cafe working on new project using laptop. Young businesswoman taking notes and businessman working on laptop computer.
Investing Articles

Could a £20,000 ISA end up generating £20,000 of passive income each year?

Could a Stocks and Shares ISA ultimately cover its own cost each year with the passive income it produces? Christopher…

Read more »

A young black man makes the symbol of a peace sign with two fingers
Investing Articles

2 top stocks to consider buying after this week’s FTSE carnage

Investors looking for beaten-up stocks to buy for the long term have a lot of great options after the recent…

Read more »

Smart young brown businesswoman working from home on a laptop
Investing Articles

A stock market crash could be a gift for long-term investors

A stock market crash could present some outstanding buying opportunities. But the key to taking advantage is knowing what to…

Read more »