Capital gains tax calculator
Estimate the incremental tax on one person's net taxable capital gains for a year using the remaining 30% capital income band.
Enter the annual amounts to see the estimate.
This calculator provides an estimate, not tax advice. Check your final figures against the Finnish Tax Administration's guidance.
How the estimate works
Estimated incremental tax = B(O + G) − B(O). G is the entered annual net taxable capital gain, O is other taxable capital income for the same person and year, and B applies 30% through €30,000 and 34% above €30,000.
Worked example
With €10,000 of net taxable gains and €25,000 of other taxable capital income, €5,000 of the gain is taxed at 30%, giving €1,500, and €5,000 is taxed at 34%, giving €1,700. The estimated incremental tax is €3,200 and the effective rate before cent rounding is 32.00%. This is the tax on the entered €10,000 gain, not the total tax on all €35,000 of capital income.
Supported scope
This browser local estimate covers one person's already determined taxable amounts for one year. It does not read, transmit or save financial data.
Do not enter gross sale proceeds, gross dividends, gross insurance payouts, equity savings account internal sale profits or bank interest taxed separately at source unless you have first determined the taxable amount under the applicable rules. Loss carryovers, other deductions, tax credits and withholding are not calculated. Later income can change the estimate, so this is not a complete annual tax assessment.
A zero input means there is no positive entered gain. For a negative input, only eligible disposal losses may reduce capital income, and unused eligible losses may carry forward for the following five years. The calculator does not estimate that deduction benefit or an earned income credit.
Read how deemed acquisition cost compares with actual costs.
Frequently asked questions
- What belongs in net taxable capital gains?
- Enter the year's gains after the applicable acquisition basis, eligible sale costs and allowable current year disposal loss netting. Do not enter gross proceeds.
- Why does other taxable capital income matter?
- It uses part of the personal €30,000 band taxed at 30%. Enter only taxable income not already counted in net gains, including only the taxable portion of dividends.
- Does a negative result mean a tax refund?
- No. The estimate is zero. Eligible disposal losses may reduce capital income and unused eligible amounts may carry forward for five years, but this calculator does not value that benefit.
- Is this my complete annual tax assessment?
- No. It estimates the incremental tax on the entered gain and excludes loss carryovers, other deductions, credits and withholding.