Here’s how I plan to make a million with the FTSE 100

Making a million with the FTSE 100 (INDEXFTSE: UKX) isn’t as hard as you might think…

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 I were to tell you I plan on making a million in the stock market, you might think I am over ambitious. Making a million pounds by investing in stocks and shares is the dream, but very few people accomplish this lofty goal.

However, the reality is you can make a million by investing relatively easily. All you need is a little discipline and time. 

Today I’m going to explain how I am going to use these two tailwinds to help me make a million.

Slow and steady

Investing in the financial markets is one of the best long-term approaches to wealth creation, but the fact of the matter is, stocks and shares won’t make you a millionaire overnight. Even Warren Buffett, who is widely considered to be the world’s best investor, didn’t reach this goal until his early 30s. It took several years of hard work and diligent investing on his part before he could claim to be a millionaire.

Still, over the long term, the wealth-creating ability of equities is unrivalled, which is why I am going to invest my money in the FTSE 100. This gives me an instant portfolio of the 100 largest companies trading in London today. The reason why I have chosen the Footsie is that it is one of the world’s largest stock indexes, which means it is relatively easy to track and I don’t need to pay a lot in fund fees. You can buy FTSE 100 trackers today with an annual charge of less than 0.1%.

With my investments taken care of, I can concentrate on what matters most, making sure I am saving enough money every month to meet my million-pound goal. I am currently saving around £300 to £400 a month, and this goes straight into my investment account where it is invested monthly in the FTSE 100.

Compound growth 

According to my figures, as long as I put away £300 a month, I will be able to cruise to £1m in 40 years (that’s where the patience comes into play). This assumption is based on the fact that over the past two decades, the FTSE 100 has produced an annual return for investors of around 8%. This sample includes both the financial crisis and the dotcom boom/bust so I believe it is a relatively accurate assumption of long-term returns. 

According to my figures, £300 a month invested at a rate of 8% per annum will grow to be worth just over £1m in four decades. If I manage to save £400m a month, I estimate I will be able to save a total of £1.4m by 2059.

So, that’s how I plan to make £1m with the Footsie 100 over the next few decades. It is a simple strategy, and there is no need for complex investment decisions or excessive risk-taking. All I need to do is make sure I’m saving enough every month and the FTSE 100 will do the rest.

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

Investing Articles

Dividend-paying FTSE shares had a bumper 2025! What should we expect in 2026?

Mark Hartley identifies some of 2025's best dividend-focused FTSE shares and highlights where he thinks income investors should focus in…

Read more »

piggy bank, searching with binoculars
Dividend Shares

How long could it take to double the value of an ISA using dividend shares?

Jon Smith explains that increasing the value of an ISA over time doesn't depend on the amount invested, but rather…

Read more »

Businessman hand stacking money coins with virtual percentage icons
Investing Articles

£5,000 invested in Tesco shares 5 years ago is now worth this much…

Tesco share price growth has been just part of the total profit picture, but can our biggest supermarket handle the…

Read more »

Investing Articles

Here’s why I’m bullish on the FTSE 100 for 2026

There's every chance the FTSE 100 will set new record highs next year. In this article, our Foolish author takes…

Read more »

Thoughtful man using his phone while riding on a train and looking through the window
Growth Shares

UK interest rates fall again! Here’s why the Barclays share price could struggle

Jon Smith explains why the Bank of England's latest move today could spell trouble for the Barclays share price over…

Read more »

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

2 out-of-favour FTSE 250 stocks set for a potential turnaround in 2026

These famous retail stocks from the FTSE 250 index have crashed in 2025. Here's why 2026 might turn out to…

Read more »

Young female business analyst looking at a graph chart while working from home
Investing Articles

Down over 30% this year, could these 3 UK shares bounce back in 2026?

Christopher Ruane digs into a trio of UK shares that have performed poorly this year in search of possible bargains…

Read more »

Mature people enjoying time together during road trip
Investing Articles

Yields up to 8.5%! Should I buy even more Legal & General, M&G and Phoenix shares?

Harvey Jones is getting a brilliant rate of dividend income from his Phoenix shares, and a surprising amount of capital…

Read more »