What is DRIP Investing? (The Secret to Compounding)

Albert Einstein reportedly called compound interest the “eighth wonder of the world.” A Dividend Reinvestment Plan (DRIP) is the “Autopilot” button for that wonder. Instead of taking cash dividends, a DRIP automatically uses that money to buy more shares of the same company—often with zero fees and at a discount. Here is how it works and why it creates a massive “Snowball Effect” over time.

BMT Wall St. Team BMT Wall St. Team · 📅 Jan 2026 · ⏱️ 6 min read · INVESTING › BASICS
Fee
$0
Usually FreeSave
Shares
Fractional
Buy 0.05 SharesRule
Tax
Yes
Taxable EventWarn

1. The Rule: Automation of Wealth

DRIP turns a linear income stream into an exponential growth curve.

How It Works
1. You own 100 shares of Stock X ($50/share).
2. Stock X pays a $1.00 dividend per share ($100 total).
3. Cash Mode: You get $100 in your account.
4. DRIP Mode: You automatically buy 2 new shares. You now own 102 shares.
5. Next Quarter: You get paid on 102 shares, not 100.

2. Manual Buying vs. DRIP (Checklist)

Why not just take the cash and buy shares yourself? Because efficiency matters.

Feature Manual Reinvest (You) DRIP (Auto)
Timing You might forget or wait. Instant (Day of payout).
Fractions Hard to buy $12.50 worth. Buys exact decimals (e.g., 0.245 shares).
Discipline Tempted to spend the cash. 100% Reinvested.
Cost Standard commissions (if any). Often $0 fees.

3. Timeline: The “Compounding Gap”

Over 1 year, the difference is small. Over 20 years, the difference creates a massive wealth gap. This is the “Opportunity Cost” of taking cash.

Time Horizon Strategy Total Return Potential
Year 1-5
(Seed Phase)
Both Similar
No Visible Gap
Year 10
(Growth Phase)
DRIP Leads
DRIP is +30% Higher
Year 20+
(Explosion)
Dominance
DRIP is +100% (Double)
Planning Note
If you do not need investment income for current living expenses, it is generally better to enable DRIP immediately to maximize the long-term compounding effect on your portfolio.

4. Strategy: The “Phantom Tax” Warning

Do not assume that “no cash received” means “no tax due.”

  • The Law: The IRS treats reinvested dividends exactly the same as cash dividends. You constructively received the money and then spent it.
  • The Bill: You will receive a Form 1099-DIV at the end of the year showing the dividend income. You must pay tax on this amount, even though your bank balance didn’t increase.
  • The Planning: Keep some separate cash aside to pay the tax bill if your DRIP holdings are large.

5. Warning: The “Cost Basis” Nightmare

Selling a stock that has been DRIP-ing for 20 years can be a headache.

⛔ 80 Tiny Lots

Every time a dividend reinvests (4 times a year), it creates a new “Tax Lot” with a different purchase price.

  • Scenario: After 20 years, you have 80 different purchase prices for the same stock.
  • The Fix: Modern brokers track this automatically (Average Cost Basis), but if you transfer brokers, records can get lost.
  • Advice: Always download your year-end statements and keep them safe.

6. Frequently Asked Questions

Can I turn DRIP off?
Yes. It is a toggle setting in your brokerage account. You can usually switch between “Reinvest” and “Pay to Cash” at any time.
Does DRIP work for ETFs?
Yes. Most brokers allow you to DRIP dividends from ETFs (like VOO or SCHD) just like individual stocks. This is a powerful way to compound broad market returns.
What if the share price is high?
It doesn’t matter. Because DRIP buys fractional shares, you can reinvest a $10 dividend into a stock trading at $1,000. You simply get 0.01 shares.