How I’d invest £5k in an ISA the Warren Buffett way

Mega-billionaire Warren Buffett is my hero for many reasons, few of them financial. Here are four Buffett lessons I’d use to invest £5k in an ISA today.

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.

Fans of Warren Buffett taking his photo

Image source: The Motley Fool

The first reason I admire Warren Buffett is he is renowned for being one of the world’s most successful investors. The second reason I look up to the Oracle of Omaha is he has personal wealth exceeding $102bn, making him the world’s fifth-richest man.

The third reason I’m a huge fan of Warren Buffett is, together with Bill Gates, he is one of the world’s most generous philanthropists. ‘Uncle Warren’ has already donated tens of billions of dollars to good causes — and he intends to give away 99% of his entire wealth before his death. And the fourth reason I worship Warren is for the homespun, folksy, and yet powerful wisdom he freely shares with the world.

How I’d invest today the Warren Buffett way

If I were starting out today as a newbie investor, here are four quotes from Warren Buffett I’d use to invest £5,000 into an ISA:

1. “The worst investment you can have is cash. Cash is going to become worth less over time”.

Currently, UK inflation (the rising cost of living) is running hot at 9.4% a year. Over time, rising prices will erode the value of my savings. Therefore, I would put them to work in the stock market, by buying fairly valued or cheap shares in great businesses. And I’ve been doing this aggressively since June.

2. “It’s far better to buy a wonderful company at a fair price, than a fair company at a wonderful price”.

In the first half of 2022, as global share prices fell, I invested very little into stocks and shares. But Warren Buffett showed me that it’s okay to pay fair or even premium prices to invest in quality companies. For example, I recently bought into America’s second-largest supermarket chain, after its shares crashed almost 50% from their 52-week high. It’s a great corporation and I think I bought its shares at a bargain price.

3. “Never invest in a business you cannot understand”.

Since 29 June, my wife and I have invested a chunk of cash into 10 new shares. These include well-known UK banks, insurance companies, a housebuilder, and a global miner. To me, these are all simple, easy-to-grasp firms with clear and simple business plans. What’s more, all generate plenty of cash flow and pay generous dividends to shareholders. No loss-making, ‘jam tomorrow’ tech stocks for me, thank you.

4. “The best chance to deploy capital is when things are going down”.

Warren Buffett made this comment in an interview about share buybacks in February 2018. For me, this approach is a key part of my investing strategy. I love buying market-down shares at discounted prices, much as I enjoy buying discounted consumer goods. Indeed, many of the 10 shares we bought lately had fallen 25% to 50% from their previous highs. As an old-school northerner, I just love a bargain, me.

To sum up, my investing goal is to — as Warren Buffett said way back in 1991 — “Just buy something for less than it’s worth”. By buying shares inside an ISA and holding them for years, my cash dividends and capital gains (selling profits) can snowball tax-free. And this boring, safe approach to ISA investing has served me well over the last 35 years!

Please note that tax treatment depends on the individual circumstances of each client and may be subject to change in future. The content in this article is provided for information purposes only. It is not intended to be, neither does it constitute, any form of tax advice. Readers are responsible for carrying out their own due diligence and for obtaining professional advice before making any investment decisions.

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

CEO Mark Zuckerberg at F8 2019 event
Investing Articles

Down 31%, is this a rare chance to buy Meta stock for my ISA cheaply?

After rising to near $800 in 2025, Meta stock has pulled back to around $550. Edward Sheldon looks at whether…

Read more »

Santa Clara offices of NVIDIA
Investing Articles

18% off its peak, is Nvidia stock now attractively priced?

Nvidia stock has given up almost a fifth of the price it commanded at its peak over the past year.…

Read more »

Aston Martin DBX - rear pic of trunk
Investing Articles

The Aston Martin share price destruction helps illustrate 5 common investing mistakes!

The Aston Martin share price has been a disaster for investors. Christopher Ruane highlights a handful of lessons we can…

Read more »

DIVIDEND YIELD text written on a notebook with chart
Dividend Shares

How this stock market correction can help boost a second income by 25%

Jon Smith explains how rising dividend yields across some existing income shares can be seen as an opportunity to grow…

Read more »

Middle-aged Caucasian woman deep in thought while looking out of the window
Investing Articles

Considering a SIPP? Today’s market could provide an excellent opportunity to start

Mark Hartley breaks down the benefits of using a SIPP for retirement, and how current market conditions could offer a…

Read more »

Calendar showing the date of 5th April on desk in a house
Investing Articles

Looking for last-minute ISA ideas? Check out these UK stocks before April 3

Easter bank holidays mean the deadline to put cash into a Stocks and Shares ISA might be closer than UK…

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

£20k in a Stocks & Shares ISA? Here’s how to target a £3,854 monthly passive income

Royston Wild explains how Stocks and Shares ISA investors can target a huge passive income -- and reveals a top…

Read more »

piggy bank, searching with binoculars
Investing Articles

Stock market correction: time to create that £1,000-a-month passive income portfolio?

Millions of Britons invest for passive income. Dr James Fox believes they should always look to do so when others…

Read more »