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Calculadora Capital

Dividend & Yield Calculator

How much will you receive in dividends and what is the yield on your shares? Enter the number of shares, the annual dividend per share and the prices, and the calculator shows the gross and net income (after the 28% withholding), the monthly average, the dividend yield and the yield on cost.

Enter the current price to get the yield, and the purchase price for the yield on cost. Leave at zero to skip them.

Your dividend income

Annual income (gross)
€150.00
Annual income (net)
€108.00
Average net per month
€9.00

The net figure deducts the 28% Portuguese withholding on dividends paid to residents (Art. 71/72 CIRS). You can opt for aggregation at the progressive rates instead; foreign dividends may carry a withholding at source with a tax credit.

Yield

Dividend yield (current price)
5%
Yield on cost
6%

Dividend yield measures the dividend against the current share price; yield on cost measures it against the price you paid. When the share has risen since you bought it, yield on cost is higher than the dividend yield.

Educational estimate, not financial or tax advice. The dividend per share is not guaranteed and can be cut; the net figure assumes the 28% withholding for residents.

Video: how to use the calculator

What this calculator does

It multiplies the number of shares by the annual dividend per share to get the gross income, computes the net amount after the 28% withholding and shows the monthly average. If you enter the current price, it works out the dividend yield (dividend divided by price); if you enter the purchase price, it works out the yield on cost.

Yield and yield on cost

Dividend yield measures the annual dividend against the current share price: the return a new investor would get today. Yield on cost measures the same dividend against the price you paid: if the share has risen since you bought it, your yield on cost is higher than the market dividend yield, because you are earning the dividend on a lower entry price.

The 28% withholding

Dividends paid to a Portuguese resident are subject to a 28% withholding at source (final flat rate, Art. 71 CIRS), normally the final tax. You can opt for aggregation and tax dividends at the progressive IRS rates, useful for low incomes. Dividends from foreign companies may be withheld in the source country, with a double-taxation credit; those cases are not computed here.

Worked example

With 100 shares paying €1.50 a year, at a current price of €30 and bought at €25, you receive €150 gross a year (€108 net after the 28%), or about €9 net a month. The dividend yield is 5% (1.50 ÷ 30) and the yield on cost is 6% (1.50 ÷ 25).

Frequently asked questions

What is dividend yield?
It is the percentage the annual dividend represents against the current share price. For example, a €30 share paying a €1.50 dividend has a 5% yield. It measures the dividend return you would get by buying today.
What is the difference between yield and yield on cost?
Dividend yield uses the current share price; yield on cost uses the price you paid. If the share has risen since you bought it, yield on cost is higher, because you earn the dividend on a lower entry price.
How much tax do I pay on dividends?
Dividends paid to residents carry a 28% withholding at source (flat rate), usually the final tax. You can opt for aggregation and tax them at the progressive IRS rates, which can help at lower incomes.
Are dividends guaranteed?
No. Companies decide whether to pay dividends and can raise, cut or suspend them. A very high yield can signal risk. This calculator assumes the dividend you enter; use it as an estimate, not a guarantee.

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Author: Thorben Rasmus Idel · Reviewed by: Nahar Geva · Last reviewed: 2026-06-11