With an empty ISA at 30, I’d follow Warren Buffett’s golden rule to build passive income

One of Warren Buffett’s most famous sayings has been called his ‘golden rule’. Here’s how I’d use it to build a second income.

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.

Warren Buffett at a Berkshire Hathaway AGM

Image source: The Motley Fool

When investing, your capital is at risk. The value of your investments can go down as well as up and you may get back less than you put in.

Read More

The content of this article is provided for information purposes only and is not intended to be, nor does it constitute, any form of personal advice. Investments in a currency other than sterling are exposed to currency exchange risk. Currency exchange rates are constantly changing, which may affect the value of the investment in sterling terms. You could lose money in sterling even if the stock price rises in the currency of origin. Stocks listed on overseas exchanges may be subject to additional dealing and exchange rate charges, and may have other tax implications, and may not provide the same, or any, regulatory protection as in the UK.

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 just opening my first Stocks and Shares ISA, I’d follow the lessons handed down by legendary investor Warren Buffett.

At 93 years old, he’s been in the investing game longer than most people have been alive. And his long-term record — a return of 19.8% per year over nearly six decades at Berkshire Hathaway — is just phenomenal. In fact, it’s exactly double the market average!

When building passive income, I’d particularly absorb what has been dubbed Buffett’s ‘golden rule’.

Rule number 1 (and 2)

Rule No. 1: Never lose money. Rule No. 2: Never forget Rule No. 1

Warren Buffett

First, I should point out that Buffett isn’t speaking literally in the never-lose-money quote above. The Oracle of Omaha has lost money before, both during the financial crisis of 2008 and on his ill-fated Tesco investment.

All investors lose money, even the very best. It’s just that their winners — both in quantity and magnitude — far outweigh the losers.

What Buffett is underscoring though is the mindset that a sensible investor should learn. Investing isn’t buying meme stocks or the latest penny share trending on social media. That’s gambling, and tips the odds in favour of losing money.

Buffett picks companies rather than stocks. In other words, behind every stock is a real-world business, and over time it’s the underlying business that will ultimately deliver value or not. The market itself and stocks in general are largely irrelevant.

This is why Buffett has also said: “Only buy something that you’d be perfectly happy to hold if the market shut down for 10 years.”

Finding value

Given this, it’s crucial that I understand how a company makes money and what competitive advantages it possesses (if any).

However, finding great companies is only the first and arguably easiest part. A crucial element underpinning Buffett’s golden rule is finding a margin of safety.

This represents the difference between what I think the intrinsic value of a stock is and its current market price. It’s essentially a cushion that provides protection against errors in analysis or unforeseen developments.

I can find the greatest business in the world, but it may turn out to be a lousy investment if I grossly overpay to become a shareholder. That’s why bear markets and crashes often prove the most fruitful periods to find stock market bargains.

Investing for decades

One surefire way to lose money — and fail to build passive income — is to regularly trade in and out of stocks. The opposite, of course, is buying to hold.

A perfect example of this is Buffett’s purchase of 400m Coca-Cola shares. This was completed in 1994 after around seven years of accumulation for a total cost of $1.3bn.

Berkshire still owns those shares today, and the returns on them are quite mind-boggling. This year alone, the firm is set to rake in $736m in dividends, up from $75m in 1994.

Or to put it another way, the original investment is now more than doubling every two years from dividends alone. That equates to a 57% yield on cost! And without lifting a finger, it continues to grow.

This demonstrates the power of long-term compounding. It’s something all investors can learn from, whatever stage they’re at on their investing journey.

Should you invest, the value of your investment may rise or fall and your capital is at risk. Before investing, your individual circumstances should be assessed. Consider taking independent financial advice.

Ben McPoland has no position in any of the shares mentioned. The Motley Fool UK has recommended Tesco Plc. 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

My Rolls-Royce share price prediction for the second half of 2024

The Rolls-Royce share price has had a great first half of 2024, rising by 55%. Muhammad Cheema takes a look…

Read more »

Investing Articles

This ETF could be the easiest way to stock market success

Investing can be a gruelling and difficult process at times, but finding an ETF with reliable long-term growth can be…

Read more »

Dividend Shares

The yield on this dividend stock has jumped 9x in 5 years. Should I buy?

Jon Smith takes a look at a dividend stock with a yield that has been rising in recent years, but…

Read more »

British union jack flag and Parliament house at city of Westminster in the background
Investing Articles

2 FTSE 100 stocks I’m watching after the election

Ken Hall is keeping a close eye on a couple of big name FTSE 100 shares after the Labour Party's…

Read more »

Investing Articles

Nvidia stock’s (still) booming. But is the bubble about to burst?

Nvidia stock's made a lot of investors very wealthy. But our writer suspects it might only be a matter of…

Read more »

One English pound placed on a graph to represent an economic down turn
Investing Articles

2 penny stocks to consider buying while their prices are still cheap

With many FTSE 100 stocks now overbought, investors may consider digging deeper to uncover penny stocks with room to grow.

Read more »

British flag, Big Ben, Houses of Parliament and British flag composition
Investing Articles

What Labour’s win means for UK stocks and the FTSE

Research shows that UK stocks have performed better when a particular party's in power. But investors shouldn't get hung up…

Read more »

Investing For Beginners

Saving £400 a month? I’d buy FTSE stocks to help me retire early

Jon Smith explains how he can take advantage of FTSE stocks with high growth potential to increase the value of…

Read more »