Passive income: how I’m going to invest for an extra £1,000 a month

Later this year, I plan to invest an unexpected windfall to generate an extra £12,000 a year in passive income. Here’s how I’m aiming 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.

Just after the start of the 2021/22 tax year in April, my family will receive a hefty, but somewhat unexpected, windfall. It’s not an inheritance and no-one’s died, thank goodness. This windfall will arrive as several cash lump sums from various investments and payouts. It’s complicated to calculate, but the final total could be around £300,000 after tax. My aim is to use this sum to generate more passive income for my family.

What is a passive income?

Passive income is ‘unearned earnings’ — money that comes from sources other than paid work. Examples of passive incomes include savings interest, bond coupons, share dividends, rental income, and income from other assets. One low-risk option would be to put the whole lot on deposit and just collect the savings interest. But with rates so low, a savings rate of, say, 1% a year would generate only £3,000 a year. This would be taxed at the 40% rate, producing £1,800 a year after tax. This extra £150 a month in passive income really isn’t going to change our lives.

Another choice might be to invest the money in government and corporate bonds. These IOUs pay a regular income (known as coupons) and then return the initial capital on maturity. But bonds have been in a 40-year bull market where prices have soared. Thus, most bonds today are more expensive than at any point in history. With safe bonds yielding 1% a year or less, but at much greater risk than savings deposits, today’s bonds are too high-priced for me.

I’ll invest in quality UK companies

My wife and I have decided to use this windfall to generate extra income to meet steeply higher household expenses. My son was a university fresher last autumn and may need four years of funding. Likewise, my daughter starts university next year to train as a doctor, which might entail five to seven years of funding. Their combined bills for accommodation alone will easily exceed £1,000 a month, hence our need for extra passive income.

Our goal is fairly undemanding: we want to generate 4% a year from this capital, generating £12,000 in passive income (before tax). To do this, we plan to invest in shares of high-quality companies that pay decent cash dividends. At the moment, the FTSE 100 index has a dividend yield of 3% a year. Thus, to get 4%+ in yearly dividends, we will focus on higher-yielding shares.

Right now, more than 20 different FTSE 100 shares pay yearly dividends of 4% or more. The average dividend yield across these Footsie stocks is almost 5.8% a year. Thus, investing £15,000 in each of 20 different blue-chip stocks would capture a decent chunk of the FTSE 100’s dividend stream. Then again, just 10 FTSE 100 stocks generate more than half of all the dividends paid by the Footsie. Hence, our focus will be on these and other dividend dynamos for passive income.

One final word: we can afford to take stock-market risk with this £300k windfall, as we already have a large, balanced, long-term portfolio of assets. Therefore, we won’t worry too much as share prices rise and fall. Just so long as this extra passive income stays stable or rises over time, we’ll be happy with our new income portfolio. And any future capital gains will be a welcome bonus!

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

Is 2026 the year the Diageo share price bounces back?

Will next year be the start of a turnaround for the Diageo share price? Stephen Wright looks at a key…

Read more »

Investing Articles

Here’s my top FTSE 250 pick for 2026

UK investors looking for under-the-radar opportunities should check out the FTSE 250. And 2026 could be an exciting year for…

Read more »

Yellow number one sitting on blue background
Investing Articles

Here’s my number 1 passive income stock for 2026

Stephen Wright thinks a 5.5% dividend yield from a company with a strong competitive advantage is something passive income investors…

Read more »

Thoughtful man using his phone while riding on a train and looking through the window
Investing Articles

Should I sell my Scottish Mortgage shares in 2026?

After a strong run for Scottish Mortgage shares, our writer wonders if he should offload them to bank profits in…

Read more »

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

Down 35%! These 2 blue-chips are 2025’s big losers. But are they the best shares to buy in 2026?

Harvey Jones reckons he's found two of the best shares to buy for the year ahead, but he also acknowledges…

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

State Pension worries? 3 investment trusts to target a £2.6m retirement fund

Royston Wild isn't worried about possible State Pension changes. Here he identifies three investment trusts to target a multi-million-pound portfolio.

Read more »

Smiling white woman holding iPhone with Airpods in ear
Dividend Shares

4 dirt-cheap dividend stocks to consider for 2026!

Discover four great dividend stocks that could deliver long-term passive income -- and why our writer Royston Wild thinks they’re…

Read more »

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

These fabulous 5 UK stocks doubled in 2025 – can they do it again next year?

These five UK stocks have more than doubled investors' money as the FTSE 100 surges. Harvey Jones wonders if they…

Read more »