What Is a Source Country?
A Source Country is the state in international taxation where income arises, which may tax non-residents on such income under domestic law and treaties.
Also known as: Source State, Country of Source.
How Source Country works
A Source Country is the jurisdiction where income is treated as arising, such as where services are performed, property is located or a paying company is resident, and domestic source rules decide which income falls within its taxing reach over non-residents. The United States, for example, taxes nonresident aliens only on US-source income and effectively connected income, and IRS guidance states that most US-source income of foreign persons bears a 30% statutory tax, usually collected by withholding. Where a double tax treaty applies, the source country's rights are often reduced or removed, while the residence country generally relieves any remaining double taxation by exemption or credit.
Source Country vs Residence Country
Unlike the residence country, which generally taxes a resident's worldwide income, a Source Country taxes only income connected to its territory and usually yields priority under treaty relief rules.
Example
Illustrative example: A consultant resident in Country A receives dividends from a company in Country B. Country B, as the source country, withholds tax at its domestic rate unless the consultant claims the treaty rate, and Country A then taxes the dividend while granting a credit for the Country B tax, subject to local rules.
Common misconception
Myth: Income earned by a non-resident is only taxable in the country where the earner lives.
Reality: A Source Country may tax a non-resident's locally sourced income under domestic law, and a treaty generally limits rather than removes that right for many income types.
Frequently asked questions
What is the difference between source country and residence country?
A Source Country taxes income because the income arises within its territory, whereas a residence country taxes a person because of personal connections such as a home or presence, generally on worldwide income.
Can the source country tax a non-resident?
A Source Country can generally tax a non-resident on locally sourced income, often through withholding, although a double tax treaty may reduce the rate or allocate the right exclusively to the residence country.
Related terms
- Source Taxation — Principle under which the source country taxes
- Source of Income — Rules deciding where income arises
- Withholding Tax — Main collection mechanism used by source countries
- Double Tax Treaty (DTT) — Limits source country taxing rights
Related guides
- Tax treaties and international taxation — How treaties divide source and residence rights
Sources
Last verified: 2026-10-09. This entry is general information, not tax or legal advice; rules vary by country and change over time.
