Dividend Reinvestment (DRIP) Calculator

What dividend reinvestment does

A dividend is a cash payment a company sends shareholders, usually quarterly. Instead of taking that cash, a Dividend Reinvestment Plan (DRIP) automatically uses it to buy more shares. Those new shares pay their own dividends next time, which buy even more shares — the same compounding snowball that powers long-term investing, but driven by income rather than price.

Why growing dividends matter

The best dividend payers don't just pay — they raise the payout most years. Two forces then stack: you own more shares each year from reinvestment, and each share pays a larger dividend. Over a decade or two this is why a modest 3% starting yield can turn into a much larger income stream relative to what you originally invested.

Yield on cost

Yield on cost is your current annual dividend measured against your original purchase price, not today's price. If you bought at 50 and the dividend has grown to 4 per share, your yield on cost is 8% — even though a new buyer at today's higher price gets a lower current yield. Long-term holders of growing dividends often enjoy double-digit yields on cost.

A quick example

Start with 100 shares at 50 (a 5,000 position) yielding 3%, with dividends growing 6% a year, the share price growing 5% a year, reinvested for 20 years. The portfolio compounds well beyond simple price growth because every dividend buys more shares — and your final-year income dwarfs the first year's. Toggle reinvestment off to see how much the DRIP itself contributed.

Taxes and a final word

In a taxable account, reinvested dividends are usually still taxed in the year you receive them, which is why long-term dividend compounding works best inside tax-advantaged accounts. Remember too that dividends are never guaranteed — companies can and do cut them. Treat this projection as a what-if, size positions sensibly, and favour durable businesses.

The DRIP math, step by step

Each period the calculator runs the same loop: annual income = shares × price × yield, then new shares = dividends ÷ share price. The new shares earn dividends of their own next year, and if the company also raises its dividend, you get two compounding engines running at once — more shares and more income per share.

Worked example: $10,000 with dividends reinvested

100 shares at $50, a 3% starting yield, 6% annual dividend growth and 5% price growth:

After five years the reinvested position is worth about $7,400 per original $6,400 of stock value without DRIP — a 16% head start that widens every year. Over 20–30 year horizons, reinvested dividends have historically accounted for a large share of the stock market's total return.

Yield on cost: why boring dividend growers get exciting

Yield on cost = your current annual dividend ÷ what you originally paid. A stock bought at a 3% yield whose dividend grows 6% a year pays you roughly 5.4% on your original money after 10 years and 9.6% after 20 — without you buying a single extra share. This is the quiet argument for dividend growth over high starting yield: a 7% yielder that never grows is stuck at 7% forever, and high headline yields are often a warning sign that the market expects a cut.

Do you pay taxes on reinvested dividends?

In a taxable US account, yes — dividends are taxed in the year received even if the cash never touches your hands. Qualified dividends (most US common stocks held past a short holding period) are taxed at the friendlier long-term capital gains rates; ordinary (non-qualified) dividends at your income tax rate. Each reinvestment also creates a new tax lot that raises your cost basis — keep records, or your broker's 1099 will do it for you. In IRAs and 401(k)s the drag disappears, which is why income investors love sheltering dividend payers there.

What inputs are realistic?

Broad dividend ETFs have historically yielded about 2–4% with mid-single-digit growth; the S&P 500 itself yields under 2% but grows dividends faster. Double-digit yields usually mean elevated risk of a dividend cut — model them with a lower growth rate, or better, a cut scenario. Companies with 25+ years of consecutive raises (the "dividend aristocrats") are the classic universe for the steady-growth assumption this calculator makes.

DRIP or take the cash?

Reinvest automatically while you are in the accumulation phase: fractional shares go to work immediately, there are no commissions in most brokers' DRIP programs, and you never sit on idle cash. Taking dividends as cash makes more sense once you actually live off the income, when a position has grown larger than you want it to be (reinvesting concentrates it further), or when you would rather redirect the cash into whatever is cheapest in your portfolio — sometimes called "strategic reinvestment." Many investors switch from DRIP to cash in the last years before retirement to build a spending buffer.

Dividend dates worth knowing

Four dates govern every payout. The declaration date is the announcement. The ex-dividend date is the cutoff that matters: buy on or after it and you do not receive the upcoming dividend. The record date follows a business day later, and the payment date — typically two to four weeks after — is when cash (or reinvested shares) lands in your account. US companies mostly pay quarterly; a minority pay monthly, and many European stocks pay annually or semi-annually. When comparing a "monthly dividend" fund to a quarterly payer, remember this calculator's annual compounding already smooths most of that difference — payout frequency changes the rhythm of income far more than the long-run total.

Sources: IRS Topic 404 — Dividends · Investor.gov — DRIPs. Last updated: July 9, 2026.