DRIP Investing Explained: How Dividend Reinvestment Compounds Wealth

A DRIP, or dividend reinvestment plan, uses each dividend to buy more shares of the same security automatically. With $10,000 at a 4% yield paid quarterly on a flat share price, reinvesting gives you about $10,406 after a year and about $22,167 after 20 years, against $18,000 in shares plus cash for someone who takes the payments.

How DRIP works mechanically

You turn it on at your broker for a holding or for the whole account. On the pay date, the dividend buys shares at about that day's price, including a fraction of a share if needed. Vanguard describes its program as no-fee and no-commission and rounds fractions to three decimal places, though it excludes some securities. Fidelity says dividends from fractional positions reinvest the same way as full shares.

The compounding loop

More shares pay more dividends, which buy more shares. With a 4% yield paid quarterly, each payment adds 1% to your share count, so the second payment is 1% larger than the first. The effect is small each quarter and adds up over decades.

Example: $10,000 in Coca-Cola over 20 years

This uses Coca-Cola's current numbers: a $94.80 share price, a $2.12 yearly dividend (2.24% yield), and raises of 4.7% a year, its five-year rate on our record. The share price is held flat to isolate the dividend effect, and that is an assumption and not a forecast.

The DRIP calculator runs this with your own numbers, and each ticker page runs it from that holding's recent payment.

Broker DRIP vs. company DRIP

A broker DRIP is a setting in your brokerage account, covering whatever your broker supports. A company DRIP is run by the company or its transfer agent, and you hold shares directly with it. Some company plans sell shares at a discount, which has a tax effect: Publication 550 says the fair market value of the extra stock counts as dividend income.

The tax implication most DRIP investors miss

In a taxable account you owe tax on the dividend even though you never saw the cash. Publication 550 says you must still report reinvested dividends as income. Each reinvestment also has its own cost basis, which raises your basis in the holding, so you need those records when you sell. Your broker generally tracks this for you, but check your statements.

When to stop DRIPping

When you need the income, or the holding has grown too large a part of your portfolio, you can turn reinvestment off at any time. When to stop DRIPping covers this.

Sources

Checked on November 2, 2026. Tax rules and fund rules change, so check the current version before you act.

• IRS Publication 550, Dividends Used To Buy More Stock
• Vanguard Brokerage dividend reinvestment program
• Fidelity fractional shares