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# Source Taxation
- URL: https://university.heavnn.io/glossary/source-taxation/
- Published: 2026-10-16T14:20:00.000Z
- Updated: 2026-10-16T14:19:59.000Z
- Description: Source Taxation refers to the international tax principle under which a country taxes income arising within national territory, including income earned by non-residents.
- Author: Heavnn
- Tags: #glossary, #Import 2026-10-11 07:56

## What Is Source Taxation?

Source Taxation refers to the international tax principle under which a country taxes income arising within national territory, including income earned by non-residents.

*Also known as: Source-Based Taxation, Source Principle.*

## How Source Taxation works

Source Taxation applies when income is treated as arising in a country under its sourcing rules, and the country then taxes the recipient on that income whether or not the recipient is resident, usually by withholding at payment or through a permanent establishment assessment for business profits. IRS guidance, for instance, states that most US-source income of foreign persons is subject to a 30% tax, generally withheld, with treaty reductions available. Double tax treaties based on the OECD or UN Model, the latter published in a 2021 edition, divide rights between source and residence states, and the residence state usually relieves remaining overlap.

## Source Taxation vs Residence Taxation

Unlike residence taxation, which reaches a resident's worldwide income through personal connection, Source Taxation reaches only income with a territorial link and applies to residents and non-residents alike.

## Example

Illustrative example: A freelancer resident in Country A licenses software to a company in Country B. Country B applies source taxation by withholding tax on the royalty, and the applicable treaty caps the rate; Country A then taxes the royalty and generally credits the Country B tax.

## Common misconception

**Myth:** Leaving a country as a resident ends all tax exposure there.

**Reality:** Source Taxation can continue to reach income arising in a former residence country, such as rent, royalties or locally performed work, subject to domestic law and treaty limits.

## Frequently asked questions

### What is the difference between source and residence taxation?

Source Taxation taxes income because the income arises in a country, while residence taxation taxes a person because of residence, generally on worldwide income; treaties allocate rights between both and relieve overlap.

### How do tax treaties limit source taxation?

Tax treaties limit Source Taxation by capping withholding rates on dividends, interest and royalties, requiring a permanent establishment before business profits are taxed, and assigning some income exclusively to the residence state.

## Related terms

- [Worldwide Taxation](https://university.heavnn.io/glossary/worldwide-taxation/) — Residence-based counterpart to source taxation
- [Source Country](https://university.heavnn.io/glossary/source-country/) — State exercising source taxing rights
- [Withholding Tax](https://university.heavnn.io/glossary/withholding-tax/) — Main collection tool for source taxation
- [Permanent Establishment (PE)](https://university.heavnn.io/glossary/permanent-establishment/) — Threshold for source taxation of business profits

## Related guides

- [Tax treaties and international taxation](https://university.heavnn.io/tax-treaties-international-taxation/) — Treaty allocation of source and residence rights

## Sources

- [IRS NRA withholding](https://www.irs.gov/individuals/international-taxpayers/nra-withholding?ref=university.heavnn.io)
- [UN Model Double Taxation Convention 2021](https://financing.desa.un.org/document/un-model-double-taxation-convention-between-developed-and-developing-countries-2021?ref=university.heavnn.io)

*Last verified: 2026-10-09\. This entry is general information, not tax or legal advice; rules vary by country and change over time.*