How I’d invest £1k a month to build passive income for life 

My retirement gets closer every day and I’m looking forward to sitting back and drawing a passive income from my portfolio. Here’s how I plan to do it.

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.

Mature Caucasian woman sat at a table with coffee and laptop while making notes on paper

Image source: Getty Images

Investing in FTSE 100 shares is a great way to build passive income for retirement. Many stocks listed on the index pay incredibly generous dividends, and aim to increase them every year. That won’t just give me a passive income that I don’t have to lift a finger to receive, but one that rises over time, with luck.

Many companies offer share buybacks on top, which is another way of returning cash to investors. In fact, AJ Bell reckons that when you combine both, the FTSE 100 is on course to offer a combined total cash return of 6.6% this year. If I buy shares today, I can lock into this and hopefully watch it rise over time.

This is how I’d build passive income

As well as dividends, there is the opportunity for share price growth as well. If the FTSE 100 climbs, this will protect the value of my portfolio, so I will not deplete it too much by making income withdrawals in retirement.

So it’s FTSE 100 shares for me, all the way. Yet I am also aware of the risks. Dividends can be cut at any time, as we saw both during the financial crisis and early stages of the Covid pandemic. That is not the only danger. Even FTSE 100 stocks can fall out of favour or even go bust.

This is why my portfolio of FTSE 100 shares will always contain a minimum of 12 to 15 companies. This will spread risk so that one or two failures will not do irreparable damage to the overall value of my portfolio.

Investing £1,000 a month is quite a tall order, especially as the cost-of-living crisis rages. It adds up to £12,000 a year. Most of us cannot afford to put away quite that much, but investing something is always better than doing nothing.

Reinvested dividends roll up

It’s a handy figure to use as a benchmark, to see how my portfolio’s value would roll up over time. The long-term total return on the FTSE 100 is about 7% a year, with dividends reinvested. Someone who started investing £1,000 a month at age 45 would have £576,069 by age 66, before charges.

This is a tidy sum, although inflation means the money will not buy as much as it does today.

Ideally, most people will start saving before long before they turn 40. Somebody who invested £1,000 a month at 35 would have more than £1.3m in their portfolio by 66. Now that is starting to look like serious money, and would certainly be enough to generate a generous passive income.

I would look to build a balanced spread of dividend-paying companies, which might include top financial stocks such as Aviva, Barclays, and Lloyds Banking Group, miners such as Anglo American and Rio Tinto, and possibly an energy giant like BP or Shell.

Housebuilders such as Barratt Developments, Persimmon, and Taylor Wimpey would also be on my target list. As would dividend heroes British American Tobacco, Diageo, Tesco, and Unilever.

There are more top dividends stocks like these on the FTSE 100, and I would add them over time. When I reached retirement, I’d sit back and start taking those dividends as income.

Harvey Jones holds shares in Lloyds Banking Group, Persimmon and Rio Tinto. The Motley Fool UK has recommended Barclays, British American Tobacco, Diageo, Lloyds Banking Group, Tesco and Unilever. 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

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

£5,000 invested in BAE Systems shares a month ago is now worth…

BAE Systems shares have been among the FTSE 100's best performers in recent years. The question is, can the defence…

Read more »

A senior man and his wife holding hands walking up a hill on a footpath looking away from the camera at the view. The fishing village of Polperro is behind them.
Investing Articles

Here’s how a £20k ISA could generate £7,875 in monthly passive income

Have £20,000 ready to invest? Royston Wild explains how you could put this in a Stocks and Shares ISA to…

Read more »

Middle-aged white man wearing glasses, staring into space over the top of his laptop in a coffee shop
Investing Articles

By April 2027, £2,630 invested in Barclays shares could be worth…

Barclays shares have been flying. But what might happen to a chunk of money invested in the bank's stock over…

Read more »

Satellite on planet background
Investing Articles

MTI Wireless Edge: the 61p defence penny stock that’s delivered 10x the return of Rolls-Royce shares in 2026

Edward Sheldon has spotted a penny stock in the defence space that offers growth, value, dividend income, and share price…

Read more »

Happy woman commuting on a train and checking her mobile phone while using headphones
Investing For Beginners

Is this the biggest bargain in the FTSE 100 right now?

Jon Smith reviews a FTSE 100 stock that's fallen by 18% so far this year that he believes could be…

Read more »

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

Will Rolls-Royce shares soar to £17.40 or sink to 900p?

Rolls-Royce shares have surged almost 90% in value over the last 12 months. Can the FTSE 100 company repeat the…

Read more »

A quiet morning and an empty Victoria Street in Edinburgh's historic Old Town.
Investing Articles

£10,000 invested in Scottish Mortgage shares 5 weeks ago is now worth…

Why have Scottish Mortgage shares displayed resilience in the FTSE 100 index since the war in Iran started a few…

Read more »

A pastel colored growing graph with rising rocket.
Investing Articles

How can I target £14,132 a year in dividend income from a £20,000 holding in this FTSE 250 dividend gem?

This FTSE 250 dividend heavyweight keeps generating market-beating yields, with forecasts of more to come as earnings momentum continues to…

Read more »