There are two methods for eliminating double taxation in the Slovak Republic: income exemption method and tax credit method.
Income Exemption Method: The taxpayer’s home country (= residence state) exempts certain income from taxation if it is already taxed in the foreign country;
Tax Credit Method: Taxes paid to a foreign country are credited against the taxpayer’s domestic tax liability in the residence state.
Double taxation agreements (Double Tax Treaties) specify the method for eliminating double taxation when income is taxed in the country of employment and must also be declared in the taxpayer's country of residence, where they have unrestricted tax liability. In situations where no double taxation agreement is in place, income earned abroad and taxed in a country other than the Slovak Republic is exempt from taxation in Slovakia, provided that an authentic certificate of income taxation is submitted. This exemption applies solely to taxpayers with unrestricted tax liability in the Slovak Republic.
Arricle 23 (or similar) - Based on the Model Tax Convention on In come and on Capital, OECD:
Income exemption method (simplified version)
Where a resident of a Contracting State (= residence state) derives income which
may be taxed in the other Contracting State (= work state) in accordance with Methods for elimination of double taxation the provisions of this Convention, the firstmentioned State (= residence state) shall exempt such income from tax. Where in accordance with any provision of the Convention income derived by a resident of a Contracting State (= residence
state) is exempt from tax in that State (= residence state), such State may nevertheless, in calculating the amount of tax on the remaining income of such resident, take into account the exempted income.
The provisions of paragraph 1 shall not apply to income derived by a resi
dent of a Contracting State (= residence state) where the other Contracting State
(= work state) applies the provisions of this Convention to exempt such income from tax.
Tax credit method (simplified version)
Where a resident of a Contracting State (= residence state) derives income which may be taxed in the other Contracting State (= work state) in accordance with the provisions of this Convention, the firstmentioned State (= residence state) shall allow as a deduction from the tax on the income of that resident, an amount equal to the income tax paid in that other State (= work state);
Such deduction in either case shall not exceed that part of the income tax, as computed before the deduction is given, which is attributable, to the income which may be taxed in that other State (= work state).
Where in accordance with any provision of the Convention income derived by a resident of a Contracting State (= residence state) is exempt from tax in that State (= residence state), such State may nevertheless, in calculating the amount of tax on the remaining income of such resident, take into account the exempted income.
Elimination of double taxation in Slovak Income Tax Act (§ 45)
Alternatively, if a Double Tax Treaty prescribes the credit method, the taxpayer may still apply the income exemption method if it is more advantageous for the taxpayer. This can be done if the income has been demonstrably taxed abroad.
In sum:
Income exemption method
Tax credit method
Methods for elimination of double taxation per country