Start investing with just £100? Why not?

Christopher Ruane explains why, if he’d never bought shares before, he’d still be willing to start investing with only £100 to spare.

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.

Young black man looking at phone while on the London Overground

Image source: Getty Images

A lot of people imagine starting to invest involves having a lot of money. But that is simply not true.

But how much would I need? For example, if I had never invested in shares before and had a spare £100, might it be worth my time and effort to do so?

Minimising fees and costs

One consideration would be the percentage of my capital that might be swallowed up by things like commissions and dealing fees. These are often expressed as a percentage of the value of the transaction. But the sting in the tail is that they also frequently have a minimum amount.

For example, 1% of a £1,000 trade with a £10 minimum charge would be £10. But 1% of a £100 trade with a £10 minimum charge would be… £10!

Immediately, in such an example, 10% of my capital would have gone.

Does that mean I would not start investing with £100? No. But I would definitely take time to find the share-dealing account or Stocks and Shares ISA I felt suited my personal situation best.

Reducing risk through diversification

No matter how good a company may seem (or actually be), the unexpected can happen. That is why smart investors never put all their eggs in one basket.

In theory, diversification is a sound idea – but would it also be a practical one if I had just £100 to start investing? I think so.

Specifically, I would consider investing not in individual shares but in an investment trust. Such trusts (City of London is one of many examples) are pooled funds that buy stakes in dozens of different companies.

By buying a share in such an investment trust, I could gain exposure to a diversified set of businesses without needing to buy all those separate shares myself.

Foundation for future wealth-building

Could I get rich by putting £100 into the stock market? It seems unlikely, unless I choose exceptionally good shares and take a very long-term perspective.

But remember – that £100 is how I would start investing. I would then aim to build on that foundation, adding more money when I was able to do so.

Meanwhile, that £100 could still give me some tangible results. Hopefully, I would start to earn some dividend income from it, even if it was just a few pounds a year, as well as having the potential for share price gain.

I would probably also learn about investing. Having even a little flesh in the game is a very different way to learn than simply studying the theory.

I could also learn from my errors as well as my successes. Hopefully, that could help me improve my investment performance over time as I invested growing sums in the stock market.

C 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

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

Is 50 too old to start buying shares?

Christopher Ruane explains why 'better late than never' is key to his thinking about whether 50's too old to start…

Read more »

Two male friends are out in Tynemouth, North East UK. They are walking on a sidewalk and pushing their baby sons in strollers. They are wearing warm clothing.
Investing Articles

Here’s what £150 a month in a Junior ISA could be worth by 2045…

You might be surprised to learn by how large a Junior ISA portfolio could become inside 20 years from modest…

Read more »

Investing Articles

This red hot equity fund in my SIPP returned 12.6% in the first 2 months of 2026

This global equity fund is delivering huge returns for Edward Sheldon’s SIPP in 2026, despite all the risks and uncertainty…

Read more »

Friends at the bay near the village of Diabaig on the side of Loch Torridon in Wester Ross, Scotland. They are taking a break from their bike ride to relax and chat. They are laughing together.
Investing Articles

Want to retire richer? Here’s Warren Buffett’s golden rule to build wealth

If you want to build wealth for a richer retirement, then following Warren Buffett’s golden rule might be the best…

Read more »

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

Get ready for stock market volatility…

As conflict in the Middle East makes share prices fluctuate, what strategies can investors use to try and find opportunities…

Read more »

British Isles on nautical map
Investing Articles

Why the FTSE 100 fell almost 5% this week

Declines in mining shares dragged the FTSE 100 down after a strong start to the year. Is the pullback an…

Read more »

Middle aged businesswoman using laptop while working from home
Investing Articles

How much do you need to invest in US stocks to earn a £2,000 monthly passive income?

Is it possible to target several thousand pounds of passive income each month by buying US growth stocks? Absolutely –…

Read more »

A mature woman help a senior woman out of a car as she takes her to the shops.
Investing Articles

How big does your ISA need to be to earn £1,000 a month in passive income?

Andrew Mackie explains how a long-term ISA strategy can help investors build a chunky £12,000 passive income in less than…

Read more »