This tiny error could wreck your bid to make a million from UK shares

If you want to make a million from investing in UK shares, you need to avoid mistakes. Like the one I’ve just spotted in my portfolio.

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 want to make a million to fund your retirement, investing in UK shares is a great way to do it. By pumping regular sums into the stock market throughout your working life, you can amass a sizeable pot of money.

The trick is to leave it untouched to grow in value, year after year. So resist the temptation to raid your funds to cover spending, or panic and sell up in a stock market crash. Another thing you should do is invest in a Stocks and Shares ISA, because that way all your capital growth and dividend income is free of tax for life. It’s a huge perk for shareholders. 

There’s one more thing you must do. This one is vital, and I’ve just discovered I’m not always doing it. Please take a moment to check you aren’t making the same mistake too. Otherwise it could wreck your plans to make a million, or any other sum, from shares.

Make a million without slipping up

The key to building long-term wealth from UK shares is to reinvest all your dividends for growth. You should not take the money as income until you retire and really need it. Here’s why. Over the 20 years to 31 December 2019, the FTSE 100 index rose just 600 points to 7,542, a rise of just 8.8%.

If you’d reinvested all your dividends, your total return would have been 122%, figures from Schroders show. That’s an astonishing difference.

Dividends were particularly important in this period, because the FTSE 100 delivered such little growth, but it shows their long-term value. By reinvesting every penny, you’re often picking up shares when they’re cheap, after stock markets have fallen.

This means that to make a million you should reinvest every penny you get, but as I’ve just discovered, I haven’t been doing that.

Click to reinvest your dividends

I have money in a low-cost exchange traded fund, iShares Core FTSE 100 UCITS ETF. I thought all my dividends were being reinvested, but then I noticed I had built up a cash balance of £449.34. The dividends were sitting idle in my cash account earning zero interest, rather than being pumped back into FTSE 100 stocks.

This means that instead of buying the index during the crash in March, when it traded 20% lower than today, I bought nothing. That’s no way to make a million.

I’d forgotten to click the button on my trading platform that ensures all my dividends are automatically reinvested back into the stock or fund that paid them.

It took seconds to sort out. I went into the Dividend Reinvestment section, and amended my settings. Now all the money in my portfolio is going to work, rather than sitting idle.

I’m not great with technology, so you probably won’t make the same mistake. It’s worth checking though. It could be the difference between making a million and falling short.

Harvey Jones owns shares of iShares FTSE 100. 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

Man hanging in the balance over a log at seaside in Scotland
Investing Articles

Will Lloyds shares rise 25% or 39% by this time next year?

Lloyds shares are expected to rebound after sinking to fresh multi-month peaks. Royston Wild considers the outlook for the FTSE…

Read more »

Modern suburban family houses with car on driveway
Investing Articles

£7,500 invested in Taylor Wimpey shares 18 months ago is now worth…

A raft of issues have been plaguing the housebuilding sector in the last year-and-a-half. How bad was the damage for…

Read more »

A rear view of a female in a bright yellow coat walking along the historic street known as The Shambles in York, UK which is a popular tourist destination in this Yorkshire city.
Investing Articles

£210 drip-fed into this 6.8%-yielding UK stock could lead to a £1,000 second income 

This FTSE 100 dividend stock has slumped nearly 11% inside two weeks, making it a worthy candidate to consider for…

Read more »

ISA Individual Savings Account
Investing Articles

ISA or SIPP? 2 factors to consider

As next month's ISA contribution deadline creeps up, our writer considers a couple of key differences between using a SIPP,…

Read more »

Portrait of pensive bearded senior looking on screen of laptop sitting at table with coffee cup.
Investing Articles

Is this 5.6% yielding dividend share a brilliant defensive bolthole as war rages?

Harvey Jones looks at a FTSE 100 dividend share with a brilliant record of delivering income and growth, and wonders…

Read more »

Hand of person putting wood cube block with word VALUE on wooden table
Investing Articles

2 quality UK stocks trading below intrinsic value?

UK stocks have a reputation for being cheap, but could value investors be in dreamland with the opportunities being presented…

Read more »

Businessman with tablet, waiting at the train station platform
Investing Articles

£15,000 put into Greggs shares a year ago is worth this much now…

Greggs' sausage rolls may be tasty enough -- but its shares have left a bad taste in some investors' mouths…

Read more »

Investing Articles

FTSE 100 drops sharply — are serious bargains emerging in UK stocks?

Andrew Mackie looks at the FTSE 100 and explores how sharp falls, market volatility, and structural opportunities are reshaping the…

Read more »