How Much Dividend Income Will Your Portfolio Pay?

Published October 12, 2026

Free tool: Dividend Calculator→

Dividend investing builds an income stream that can grow every year: companies raise their dividends, and reinvested dividends buy more shares that pay dividends of their own. This guide shows how dividend income builds up over time with a worked example, using the free Dividend Calculator.

The key numbers

• Dividend yield: yearly dividends ÷ share price. A $50 share paying $1.50 a year yields 3%.
• Dividend growth: how fast the dividend per share rises each year.
• Share price growth: how fast the price rises, which affects how many shares new money buys.
• Reinvestment (DRIP): using each dividend to buy more shares instead of taking cash.

Example: 20 years of investing

You start with $10,000 and add $500 a month to a stock or fund priced at $50, yielding 3%, with dividends growing 6% a year and the price 5% a year. Dividends are paid quarterly and reinvested, in a tax-advantaged account:

• Portfolio value after 20 years: $352,008
• Money invested: $130,000
• Dividends received and reinvested: $90,429
• Yearly dividend income at the start of year 21: $12,765, about $1,064 a month
• Yield on cost: 9.82% (yearly income ÷ money invested)

Reinvesting vs taking cash

If you take the dividends as cash instead, you'd have collected $68,194 of cash over 20 years, but your total wealth would be $297,629 and your yearly income only $8,320. Reinvesting compounds: every dividend buys shares that pay more dividends.

Taking cash makes sense once you need the income, for example in retirement.

Taxes

In a taxable account, dividends are usually taxed each year, which slows compounding. With a 15% dividend tax in the example, the portfolio reaches $329,513 and yearly income $10,156. Holding dividend investments in tax-advantaged accounts such as IRAs avoids that drag.

Yield isn't everything

A very high yield can signal that the market expects a dividend cut. Look at how well the dividend is covered by earnings or cash flow and its history of growth. Dividend growth can matter more over decades than starting yield: a 3% yield growing 6% a year pays more on your original cost after about 12 years than a flat 6% yield.

Dividends are also only part of the return; the share price matters too. For total growth projections, see How Much Will My Investment Grow?

How to use the Dividend Calculator

1. Open the Dividend Calculator.
2. Enter your initial investment, monthly contribution and the share price.
3. Enter the dividend yield, dividend growth and share price growth.
4. Choose the number of years and how often dividends are paid, whether to reinvest them and your dividend tax rate.
5. Read the results: the portfolio value, total dividends received, yearly and monthly dividend income and yield on cost, with charts of dividends received each year and of reinvesting compared with taking cash, plus a year-by-year table.

Frequently asked questions

How much do I need to invest to earn $1,000 a month in dividends?

At a 3% yield, about $400,000 ($12,000 a year ÷ 0.03). In the example, investing $500 a month with reinvestment and 6% dividend growth reaches about $1,064 a month after 20 years.

Should I reinvest dividends?

While you're building wealth, reinvesting usually grows both the portfolio and future income faster. In the example it adds about $54,000 of wealth over 20 years.

What is yield on cost?

Your current yearly dividend income divided by the money you invested. Rising dividends push it up over time: 9.82% after 20 years in the example.