Dividends turn a stock into a stream of cash, and reinvesting that cash is one of the simplest forms of compounding available to an ordinary investor. This calculator does two jobs: it shows a stock’s current dividend yield, and it projects how a holding grows when dividends are reinvested, the dividend rises over time and you keep adding money.
How to use the dividend calculator
- Enter your initial investment, the share price and the annual dividend per share (add up a year of payments).
- Choose how often the dividend is paid and how many years you plan to hold.
- Add an optional monthly contribution, and the expected dividend growth and share price growth per year.
- Enter a tax rate on dividends if the shares are in a taxable account, and tick Reinvest dividends for a DRIP.
- Read the ending value, the income the portfolio would produce at the end, and the comparison with taking dividends in cash.
Dividend formulas
The projection runs month by month: the share price drifts up at the growth rate you set, contributions buy shares each month, dividends arrive on schedule, and the dividend per share steps up once a year.
Worked example
You invest $10,000 in a stock at $50 paying $2.00 a year in quarterly installments — a 4% yield. You add $100 a month, the dividend grows 5% a year, the price grows 4% a year, and every dividend is reinvested in a tax-free account.
Starting shares = 10,000 ÷ 50 = 200
After 20 years: about 1,031.5 shares worth $109.56 each = $113,006.63
You contributed $34,000 and received $42,043.84 in dividends along the way
Annual dividend income at the end ≈ $5,213 — a 15.3% yield on cost
Taking the same dividends as cash instead would leave the portfolio at about $85,767 (counting the cash), so reinvesting adds roughly $27,000 over 20 years.
Reading the results
- Yield is not the whole return. A very high yield sometimes signals that the market expects a dividend cut. Total return combines dividends with price change.
- Dividend growth does the heavy lifting. With growth set to 0%, income rises only because you own more shares; with steady raises, the income stream can outpace inflation.
- Taxes slow compounding. Entering a 15% tax rate shows the drag of holding dividend stocks in a taxable account rather than an IRA.
- Payment frequency barely matters. Monthly versus quarterly payments change the result only slightly; the yield and growth rate matter far more.
To compare the stock’s dividend with its earnings and book value, use the stock valuation ratios calculator. For a broad portfolio with a single average return, the investment calculator is simpler.
This is an illustration based on steady growth assumptions, not investment advice. Companies can reduce or suspend dividends at any time, and share prices can fall.
Frequently asked questions
How do I calculate dividend yield?
Divide the annual dividend per share by the current share price. A stock paying $0.50 a quarter ($2.00 a year) and trading at $50 yields 4%. Because the price moves every day, the yield moves too even when the dividend does not.
What is a DRIP?
A dividend reinvestment plan automatically uses each cash dividend to buy more shares, often fractional shares and without commissions. The new shares earn dividends of their own, so income and share count compound over time.
What is yield on cost?
Yield on cost is your current annual dividend income divided by the total amount you invested. If a company keeps raising its dividend, your yield on cost can climb far above the stock's current yield — a useful way to see how dividend growth rewards long holding periods.
Are reinvested dividends taxed?
In a taxable account, yes — dividends are taxable in the year they are paid even if they are reinvested. Qualified dividends are taxed at the long-term capital gains rates of 0%, 15% or 20%; ordinary dividends at regular income rates. In an IRA or 401(k) they are not taxed until withdrawal (or ever, in a Roth).