Dividend Policy and Payout Ratio
The dividend payout ratio tells you what share of profit a company hands to shareholders as dividends. The rest is retained to fund growth. These notes cover how to calculate payout and retention, and the big question behind dividend policy: does paying more actually make shareholders richer?
The dividend payout ratio explained simply
The payout ratio is the share of profit paid out as dividends (dividends ÷ net income); the rest is retained. Retained earnings fund growth: sustainable growth = ROE × retention ratio. In the example, the company pays out 40%, keeps 60%, and can grow about 9% a year (15% × 60%).
What this dividend policy lesson covers
- How to calculate the dividend payout ratio from totals or per share
- The retention (plowback) ratio and how it links to growth
- Why companies like to keep dividends smooth and steady
- The M&M argument that dividend policy doesn't matter in perfect markets
- Where stock dividends, stock splits, and buybacks fit in
Payout and growth formulas, explained
- DPS
- dividends per share
- EPS
- earnings per share
- b
- share of earnings kept in the business
- ROE
- return on equity
- g
- growth rate the firm can fund from retained earnings
How to calculate the payout ratio step by step (worked example)
A company earns net income of $2,000,000, has 1,000,000 shares, and pays $800,000 in dividends. Its ROE is 15%. Find the payout ratio, retention ratio, and sustainable growth rate.
- EPS = $2,000,000 ÷ 1,000,000 = $2.00.
- DPS = $800,000 ÷ 1,000,000 = $0.80.
- Payout ratio = 0.80 ÷ 2.00 = 40%.
- Retention ratio = 1 − 40% = 60%.
- Sustainable growth g = 15% × 60% = 9%.
Answer: The company pays out 40% of earnings, retains 60%, and can grow about 9% a year from retained earnings alone.
Paying out vs retaining earnings
| High payout | High retention | |
|---|---|---|
| Shareholders get | Cash now | Growth later |
| Sustainable growth (ROE 15%) | Lower (9% at 40% payout) | Higher (15% at 0% payout) |
| Makes sense when | The firm has few good projects | The firm earns more than investors could elsewhere |
| Typical of | Mature companies | Growing companies |

Should a company pay dividends or keep the money? David's take
This company keeps 60% of its earnings, which supports about 9% growth a year. If it kept everything, it could grow about 15% from its own earnings. My rule is: don't waste your time making money; spend it building machines that make money. So ask whether the retained cash feeds a machine that earns more than shareholders could earn elsewhere. If it does, keep feeding it. If it doesn't, give the money back.
From David's concept: Machines That Make Money. This is David's opinion, alongside the standard textbook answer above.
Harder dividend policy questions
Is retaining earnings always good for shareholders?
Only if the company earns more on the retained money than shareholders require. If ROE is below that required return, growth from retention destroys value, and paying out is better.
Does dividend policy affect firm value?
In a perfect market (Miller and Modigliani), no: shareholders can create their own dividends by selling shares. In practice, taxes, signals to the market and investor preferences can make it matter.
Common dividend policy questions
How do you calculate the dividend payout ratio?
Divide total dividends by net income, or dividends per share by earnings per share. A firm paying $0.80 per share out of $2.00 EPS has a 40% payout ratio. Both versions give the same answer when the share count is the same.
What is a good dividend payout ratio?
It depends on the business. Mature, stable firms such as utilities often pay out a large share of earnings, while fast-growing firms may pay little or nothing and reinvest instead. A ratio above 100% for long periods is a warning sign because the dividend isn't covered by earnings.
What is the difference between the payout ratio and the retention ratio?
They are two halves of the same profit. The payout ratio is the share paid out as dividends; the retention ratio is the share kept in the business. They always add up to 100%, so a 40% payout means a 60% retention ratio.
Does dividend policy affect firm value?
In a perfect market, Miller and Modigliani showed it doesn't: shareholders can create their own dividend by selling shares. In practice, taxes, signaling, and investor preferences mean dividend changes can move share prices, which is why firms avoid cutting dividends.
