International Tax Treaties for Cross Border Contractors and Foreign Companies

Cross-border work creates an easy problem to miss: two countries may claim taxing rights over the same income. International income tax treaties are designed in part to reduce double taxation, coordinate taxing rights and establish rules for determining when one country may tax a resident of another.

But a tax treaty should not be the first question in every international transaction. Before applying a treaty, you generally need to determine the taxpayer's residency, the character of the income and where the income is sourced.

Start With the Source of the Income

For personal services, the United States generally determines the source of the income based on where the services are physically performed, not where the customer is located, where the agreement was signed or where the payment originated.

That distinction is extremely important for U.S. businesses hiring foreign contractors.

When Does a Tax Treaty Matter?

Treaties can become important when income otherwise falls within U.S. taxing jurisdiction.

Depending upon the specific treaty and type of income, a treaty may:

• Reduce or eliminate withholding tax.
• Determine which country has primary taxing rights.
• Define when a foreign business has a taxable presence.
• Provide foreign tax credit or double-tax relief mechanisms.
• Establish residency tie-breaker rules.
• Provide procedures for resolving disputes between tax authorities.

Every treaty is different. You cannot assume that a provision found in one U.S. treaty applies to another country.

Foreign Contractors Performing Services in the United States

When a nonresident contractor physically performs services in the United States, that compensation is generally U.S.-source income. The statutory withholding rules may apply unless an exemption or reduced treaty rate is available.

For qualifying independent personal services, the foreign individual may use Form 8233 to claim an exemption from withholding under an applicable income tax treaty.

The exact result depends on the applicable treaty, residency, physical presence in the United States and other requirements. Some treaties use a permanent establishment or fixed-base standard, while others contain day-count or compensation thresholds.

Foreign Companies and Permanent Establishment

For a foreign company, one of the most important treaty concepts is the permanent establishment, commonly referred to as a PE.

Under many treaties, the United States generally cannot tax the business profits of a qualifying foreign enterprise unless those profits are attributable to a U.S. permanent establishment.

A permanent establishment can potentially arise from circumstances such as:

• A fixed place of business.
• An office or other location through which business is conducted.
• Certain dependent-agent activities.
• Other activities specifically covered by the applicable treaty.

Remote employees and personnel who regularly perform activities within another country can also create international tax issues that businesses frequently overlook.

Form W-8BEN and W-8BEN-E

Documentation is critical in cross-border payments.

Foreign individuals commonly use Form W-8BEN to document foreign status and, when applicable, claim treaty benefits. Foreign entities generally use Form W-8BEN-E for similar documentation and to establish their Chapter 3 and Chapter 4 status.

These forms are generally provided to the withholding agent rather than filed directly with the IRS.

Form 8833 and Treaty-Based Return Positions

In certain situations, a taxpayer taking a position that an income tax treaty overrides or modifies the Internal Revenue Code must disclose that treaty-based position on Form 8833.

The disclosure requirement is often missed because a taxpayer may assume that claiming treaty protection eliminates all U.S. filing requirements. That is not necessarily true.

Foreign Corporations and Form 1120-F

A foreign corporation can still have a U.S. filing obligation even when it believes a treaty prevents the United States from imposing income tax.

For example, a foreign corporation engaged in activities in the United States may be required to file Form 1120-F even if it claims that its business profits are exempt because it does not have a U.S. permanent establishment.

In uncertain cases, a protective Form 1120-F filing may preserve the corporation's ability to claim deductions and credits if the IRS later concludes that the company was engaged in a U.S. trade or business or otherwise had taxable effectively connected income.

Limitation on Benefits

A company does not automatically receive treaty benefits merely because it was incorporated or registered in a treaty country.

Many treaties contain Limitation on Benefits provisions designed to prevent treaty shopping. Ownership, base erosion, public-company, active-trade-or-business and other tests can become relevant when determining whether an entity is actually entitled to the treaty.

State Taxes Are a Separate Question

Federal treaty protection does not necessarily determine the state tax result.

A state may apply its own sourcing, nexus and conformity rules. Therefore, a transaction that produces little or no federal tax under an income tax treaty can still create a state income, franchise, payroll or other filing obligation.

Common Cross-Border Mistakes

• Assuming every foreign payment requires 30% withholding.
• Assuming every foreign contractor needs treaty relief.
• Looking at the payer's location instead of where services are performed.
• Using the wrong Form W-8.
• Failing to analyze permanent establishment exposure.
• Ignoring Form 1120-F protective filing considerations.
• Claiming treaty benefits without checking the Limitation on Benefits article.
• Ignoring state tax obligations.

The Practical Approach

A cross-border tax analysis should usually follow a sequence: determine the taxpayer's residency, characterize the income, determine its source, analyze domestic U.S. tax law, identify the applicable treaty and then determine the reporting and documentation requirements.

The treaty should be part of the analysis, not a shortcut around it.