Czech Republic Investment Income Guide

Investment income in the Czech Republic is primarily taxed via withholding tax (srážková daň) at 15% — this covers dividends, interest on bank deposits and bonds, and investment fund distributions. Capital gains on securities are exempt after 3 years (časový test). High earners may opt to include investment income in their normal assessment, potentially triggering the 23% rate. Tax treaties may reduce withholding rates for non-residents. All amounts in CZK.

Czech investment income taxation distinguishes between passive income (taxed by withholding at source) and capital gains (taxed under the time test regime). For related guidance, see our Capital Gains Guide →, Personal Tax Guide →, and Corporate Tax Guide →.

Dividend Taxation (Zdanění dividend)

Withholding tax rate: Dividends paid by Czech companies are subject to a 15% withholding tax (srážková daň) at source. The dividend is paid net of tax — the recipient receives 85% of the declared dividend, with 15% remitted to the tax authority by the paying company.
Final tax: For Czech resident individuals, the 15% withholding tax is a final tax — the dividend is not included in the annual tax return and is not subject to further assessment. This applies regardless of the taxpayer's marginal rate (even if the 23% solidarity surcharge would otherwise apply).
High earners opting in: Taxpayers whose total income exceeds the solidarity surcharge threshold may opt to include dividends in their normal assessment. If they do, the dividend is taxed at 23% (minus the 15% already withheld), resulting in an additional 8%. This election is rarely beneficial.
DTA relief: Non-resident shareholders may benefit from reduced withholding rates under applicable Double Taxation Agreements. The standard treaty rate is typically 10–15% for portfolio dividends and 5–10% for substantial shareholdings (e.g., 10%+).

Interest Taxation (Zdanění úroků)

Bank deposits: Interest on bank accounts, savings accounts, and term deposits is subject to 15% withholding tax at source. The interest is paid net of tax, and the tax is final — no further return required.
Bonds and debentures: Interest on Czech corporate bonds and government bonds (dluhopisy) is also subject to 15% withholding tax. For Czech government bonds (státní dluhopisy), the 15% WHT is also final for residents.
Interest from related parties: Interest paid by a company to a related party (e.g., shareholder loan) may be subject to 15% WHT or taxed as ordinary income depending on the nature of the recipient (individual vs. corporate) and applicable treaty provisions.
Opt-in to normal assessment: Similar to dividends, taxpayers may opt to include interest income in their normal tax assessment. This is generally unfavourable (23% vs. 15%) unless the taxpayer has offsetting deductions or losses.

Investment Fund Distributions

Standard funds (podílové fondy): Distributions from Czech investment funds are subject to 15% withholding tax for resident individuals. The distribution is final tax — no further reporting required.
Accumulating funds: For accumulating funds (where income is reinvested rather than distributed), the fund pays a 5% corporate tax on its income (the reduced rate for investment funds). Unitholders are not taxed on the accumulated income until they sell their units — at which point the 3-year time test applies to the capital gain.
Real estate funds: Distributions from real estate investment funds are treated the same as other fund distributions (15% WHT final).

Capital Gains on Investments

Exempt after 3 years: Capital gains from the sale of securities, fund units, and shares in s.r.o. are exempt from income tax if the holding period exceeds 3 years (časový test). This is one of the most attractive features of the Czech investment tax regime.
Within 3 years: Gains realised within 3 years are taxed as other income at 15% (or 23% if the taxpayer's total income exceeds the solidarity surcharge threshold). The gain is the sale price minus acquisition cost and expenses.
Trading frequency: If the taxpayer trades securities with high frequency (day trading, active portfolio management), the tax authority may reclassify the income as business income (podnikání) rather than capital gains. This would subject the gains to 15%/23% plus social and health insurance contributions (approximately 31.5% additional). Professional traders are advised to consult a tax advisor.

Foreign Investment Income

Foreign dividends: Dividends paid by foreign companies to Czech residents are not subject to Czech withholding — they must be reported in the annual tax return. A foreign tax credit is available for withholding tax paid in the source country, up to the Czech tax due on that income (15%). The net result is typically the higher of the Czech rate and the foreign rate (foreign rate is credited, but no refund of excess foreign tax).
Foreign interest: Similar treatment — foreign interest is reported in the annual return, and a foreign tax credit is available.
Foreign capital gains: Gains from foreign securities are treated the same as domestic securities — the 3-year test applies. Foreign tax paid on the gain is creditable against Czech tax (limited to Czech tax due on that gain).