We have some exciting news to share! The Motley Fool UK has now become The Twelfth Magpie -- an independent, UK-owned company, led by our long-serving UK management team — Mark Rogers, Chris Nials and Heather Adlington. In practical terms, it’s the same team you know, now fully focused on serving our UK readers and members.

Just as importantly, our approach remains unchanged: long-term, jargon-free, and on your side. This site is our new home, and there will be extra tweaks made across the coming few days as we settle in. So if anything looks a little off, please bear with us!

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.

My £10 a day plan to retire a passive income millionaire

Can our writer retire a passive income millionaire by investing £10 a day in dividend shares over decades? Here he explains the maths — and what he would do,

You’re reading a free article with opinions that may differ from The Twelfth Magpie’s Premium Investing Services. Become a member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn more, and get a free 'Best Buy Now' stock!.

For a lot of people, passive income is a form of pocket money. But with the right approach, I think it can be a lot more than that. In fact, simply by investing £10 a day in dividend shares I think it is possible to retire as a passive income millionaire.

It will certainly take time and I know that I might not get there. But starting in my mid to late 20s, I see the millionaire target as possible by standard retirement age. Here is how I would aim to do it.

Should you buy Rolls Royce shares today?

Before you decide, please take a moment to review this report first. Despite ongoing uncertainties from US tariffs to global conflicts, Mark Rogers and his team believe many UK shares still trade at substantial discounts, offering savvy investors plenty of potential opportunities to learn about.

That’s why this could be an ideal time to secure this valuable research – Mark’s analysts have scoured the markets to reveal 5 of his favourite long-term ‘Buys’. Please, don’t make any big decisions before seeing them.

Dividend shares as passive income ideas

First I think it is important to understand the source of the passive income I would be targeting – dividend shares.

Some companies distribute profits to shareholders as dividends. These are not guaranteed. But if they are paid regularly, they can start adding up. No one knows what a company will do in future when it comes to dividends. So, to reduce my risk, I would diversify my passive income-focused pot across different companies and business areas.

The power of compounding

In the short term, dividends can be a useful source of passive income. But if they are instead reinvested, over the long term they can be the basis of a sizeable fortune. That is because of what is known as compounding. Basically, over time if my reinvested dividends are generating still more dividends, the combined effect should get bigger each year.

For example, if I put £10 a day aside and invest it in dividend shares with an average yield of 8%, after 20 years I should hopefully have around £178,000. But, after another 20 years still contributing £10 a day, my pot will have grown to over a million pounds. None of this is guaranteed if course. But the potentially dramatic increase in value in the second 20-year period is despite me contributing only a steady £10 a day. That shows the power of compounding at work. The reinvested dividends would themselves be earning me more dividends. 

Forty years may seem a long time. But if putting aside £10 a day for that length of time can make me a millionaire, I think it is worth doing.

Finding dividend shares

As well as time and the size of my contribution, another crucial element of my calculation is the use of dividend shares yielding 8%. If I invested in shares yielding 7% on average, after 40 years my investments would be worth ‘only’ £794,000. Due to the power of compounding, just a 1% difference in dividend yield can make a huge difference to my returns in the long run.

There are FTSE 100 shares that currently yield 8% or more, such as Rio Tinto and M&G. But I am targeting an average 8% yield for 40 years, not just right now. So to hit my target, I will need to take time to evaluate which dividend shares I could buy that hopefully might sustain an 8% yield or better for four decades. Such shares are few and far between.

Incidentally, in my calculation the increase in value is all due to dividends. I have not accounted for shifts in the prices of shares I own. If they fall, it may take me longer to become a millionaire. On the other hand, if the share prices increase, I may be able to retire a millionaire without even having to wait 40 years!

Christopher Ruane 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

ISA coins
Investing Articles

£10,000 put in a Cash ISA at the start of 2026 is now worth…

We're only halfway through the year, but has a Cash ISA beaten stock market returns so far? Our writer digs…

Read more »

Young woman carrying bottle of Energise Sport to the gym
Investing Articles

Still stubbornly in pennies, will the JD Sports share price hit £1 again?

Christopher Ruane reckons the JD Sports share price looks cheap but it's already been in pennies for many months. What's…

Read more »

Middle aged businesswoman using laptop while working from home
Investing Articles

Can an ISA outperform the stock market? Yes – here’s how!

Many investors dream of using their ISA to do better than the market overall. This writer knows it's possible --…

Read more »

Asian man looking concerned while studying paperwork at his desk in an office
Investing Articles

Dear SpaceX stock fans, mark your calendar for 7 July

SpaceX stock is getting fast-tracked into the world's leading technology index. Should I buy shares of the rocket maker before…

Read more »

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

Here are 2 FTSE shares I’m excited about this July — and 1 I’m avoiding

As we head into the second half of the year, Mark Hartley identifies two undervalued FTSE shares that are flashing…

Read more »

Image of happy young people man and woman in basic clothing thinking and touching chin while looking aside isolated over yellow background
Investing Articles

Up 250%! Here’s why I bought HSBC shares over SpaceX stock

Everybody's talking about SpaceX stock but Harvey Jones chose to put his money into a top FTSE 100 company that's…

Read more »

Young brown woman delighted with what she sees on her screen
Investing Articles

Newsflash: the Diageo share price just climbed!

Harvey Jones was so surprised to see the Diageo share price heading the right way for once he almost fell…

Read more »

Curtains, happy woman and thinking of future in home, planning and reflection of mindset with view. Window, smile and African girl with vision, ideas and dream for morning inspiration in living room.
Investing Articles

Up 50% in a year! That’s not the only reason I’d consider buying Barclays over Nvidia stock today

Harvey Jones says that Nvidia stock is probably one of the safer ways to play the artificial intelligence revolution. But…

Read more »