Comprehensive Guide
Learn more in our Investing Guide.
How it works
A dividend reinvestment plan (DRIP) automatically converts every cash payout into additional fractional or whole shares, so each future dividend is computed on a slightly larger share count — the quiet mechanism behind most dividend-compounding stories. This calculator models it mechanically: each year your shares produce a dividend, that cash buys more shares at the year-end price, and next year's payout reflects both the bigger share count and any dividend raise. Start with 200 shares at $50 paying $2 annually, assume 5% dividend growth and 4% price growth, and ten years later the plan holds roughly 290 shares worth about $21,400 — around $1,900 of which exists purely because dividends bought dividends. The schedule below shows the accumulation curve, and the chart splits final value between your original shares and everything the DRIP added. Two honest caveats: results assume steady growth rates that real markets refuse to follow in straight lines, and in taxable accounts DRIP shares trigger tax bills along the way since reinvested dividends are still taxable income in the year received.Formula
shares(t+1) = shares(t) + shares(t) × dividend(t) ÷ price(t+1), with dividend growing g% and price p% yearly
Tips
- Commission-free DRIPs through brokers beat old-style company plans with fees.
- Track cost basis per reinvestment lot — tax time gets painful otherwise.
- Turn DRIP off once you need the income; the switch is instant and free.
- Reinvesting through a downturn buys more shares per dollar — the quiet superpower.
- Model pessimistic growth rates too; plans built only on bull cases break first.