Payout Ratio.
A definition, in plain English — with the books that teach it.
What it means
The payout ratio measures the proportion of a company's earnings that is distributed to shareholders as dividends, calculated by dividing annual dividends per share by earnings per share and expressing the result as a percentage. A payout ratio of 40% means the company returns 40 cents of every dollar earned to shareholders in cash, retaining the remaining 60 cents for reinvestment in the business. The metric serves several functions in equity analysis. First, it signals how much financial cushion exists between current earnings and the dividend commitment — a company paying out 30% of earnings has ample room to maintain its dividend even if earnings temporarily decline, while one paying out 95% has almost none. Second, it frames management's capital allocation philosophy: a low payout ratio combined with high returns on invested capital suggests the company can create more value by reinvesting than by distributing; a high payout ratio in a mature, slow-growth business signals that management recognizes shareholders are better served by receiving cash than watching it sit idle. Income-oriented investors — particularly retirees — favor companies with moderate, sustainable payout ratios over those with eye-catching yields that rest on payout ratios above 100%, which are only sustainable if earnings recover or the company borrows to fund dividends. Analysts also track the payout ratio relative to free cash flow rather than accounting earnings, since dividends are paid in cash, not accrued income. A company whose FCF-based payout ratio differs substantially from its earnings-based ratio often warrants deeper investigation into the gap between reported profits and actual cash generation.
Example
A regulated utility reports earnings per share of $3.00 and pays an annual dividend of $2.10 per share, giving a payout ratio of 70%. An investor assessing dividend safety notes that even if earnings fall 20% to $2.40, the company could still cover its dividend without cutting — providing meaningful downside protection compared to a peer paying out 95% of earnings.

