Buffett's Owner Earnings: The Metric He Trusts Most

In his 1986 letter to Berkshire Hathaway shareholders, Buffett introduced a concept that remains one of the most powerful tools in stock valuation — and the foundation of our fair value model: owner earnings. He argued that reported earnings per share — the number Wall Street obsesses over — can be misleading, and that investors should instead focus on the cash a business actually generates for its owners after maintaining its productive capacity.

What Owner Earnings Are

Owner Earnings = Net Income + Depreciation & Amortization − Capital Expenditures

The logic is straightforward. Net income is the starting point — the reported profit. Depreciation and amortization are added back because they're non-cash charges that reduce reported income without any cash leaving the business. Then capital expenditures are subtracted because they represent the real cash the business must spend to maintain its competitive position — replacing worn-out equipment, upgrading technology, maintaining facilities.

What remains is the cash that could theoretically be extracted from the business without impairing its operations — the true economic earnings available to the owner. It's what you'd receive if you owned the entire company and took out all the cash you could without letting the business deteriorate.

Why Buffett Prefers Owner Earnings

Reported EPS Can Be Misleading

Reported earnings include non-cash items, one-time charges, and accounting choices that may not reflect the business's actual cash generation. A company with $5 billion in reported earnings but $4 billion in required CapEx only generates $1 billion for owners — a reality that EPS completely obscures. Owner earnings strips away the accounting fog to reveal what the business actually produces in usable cash.

It Captures Capital Intensity

Two companies with identical reported earnings can have vastly different owner earnings if their capital requirements differ. A software company earning $2 billion with minimal CapEx might have $1.8 billion in owner earnings. A manufacturing company earning $2 billion but spending $1.5 billion on equipment maintenance has only $500 million. Same EPS, completely different economic reality. Owner earnings reveals the difference.

It's Harder to Manipulate

Reported earnings can be inflated through aggressive revenue recognition, capitalized expenses, or one-time gains. Owner earnings, rooted in cash flow, is harder to manufacture. Cash either exists or it doesn't — you can't accrue cash the way you can accrue revenue. This is why Buffett trusts owner earnings as a more honest representation of business value.

Owner Earnings in Buffett's Valuation Process

Buffett uses owner earnings as the foundation for his intrinsic value estimates. He projects owner earnings forward, applies a growth rate based on the company's competitive position and reinvestment opportunity, and discounts the resulting stream back to the present using the long-term Treasury rate as a benchmark.

The approach is deliberately conservative. By subtracting all CapEx (not just maintenance CapEx), the formula understates owner earnings for growing businesses that are investing in expansion. This conservatism builds a margin of safety into the valuation — if the actual economics are better than the formula suggests, the investment outcome will exceed expectations.

Calculating Owner Earnings in Practice

Find net income on the income statement. Find depreciation and amortization on the cash flow statement (or backed out from the income statement). Find capital expenditures on the cash flow statement under investing activities. Plug the numbers into the formula. Compare the result to reported EPS — the gap tells you how capital-intensive the business is.

For a quick quality check: if owner earnings consistently exceed reported net income, the business has an attractive earnings profile (low CapEx relative to D&A). If owner earnings are consistently below net income, the business requires heavy capital reinvestment just to maintain its current earning power — not inherently bad, but important to understand.

Track owner earnings over 5-10 years. Growing owner earnings confirm that the business is generating more cash for owners over time — the core requirement for long-term wealth creation. Flat or declining owner earnings, even with growing reported earnings, suggest the business is consuming more capital than it's producing in economic profit.