When Does a Foreign Person Have a USTB? Practical Tests For Warehouses, Sales, And Services

U.S. Trade or Business (USTB) A U.S. federal income-tax concept describing sufficiently substantial business activities conducted in the United States by a foreign person.

For warehouse operators, merchants using U.S. fulfillment, and service providers, the practical question is whether particular activities — not abstract statements — create a U.S. Trade or Business (USTB). The analysis is fact-specific but experienced practitioners evaluate a consistent set of tests: physical footprint, function performed in the U.S., duration and regularity, agent relationships, and the nexus between income and U.S. operations.

Key Practical Tests

Apply these real-world checks when reviewing operations:

• Physical Facilities Test: Does the foreign person maintain offices, warehouses, or other facilities in the United States? Persistent facilities usually indicate USTB.
• Activities Test: Are core revenue-generating activities performed in the U.S. (e.g., order fulfillment, manufacturing, installation)? Active business functions point toward USTB.
• Duration Test: Are activities continuous or recurring over time? Short-lived or sporadic activities are less likely to create USTB status.
• Agent Test: Do agents in the U.S. have authority to conclude contracts or habitually secure orders? Dependent agents typically create USTB exposure.

Warehouse And Fulfillment Center Scenarios

Warehousing and third-party logistics are frequent USTB risk areas. The presence of inventory in a U.S. warehouse, combined with active fulfillment, returns processing, and client servicing in the U.S., often increases the chance a USTB exists. However, the mere use of a third-party warehouse provider does not automatically create USTB if the foreign owner retains contract conclusion and control offshore and the warehouse operates solely under general storage contracts.

Sales And Distribution

Sales-related activities are common triggers. Key distinctions:

• Solicitation Only: Occasional solicitation in the U.S. without order acceptance there may avoid USTB.
• Order Acceptance: If orders are accepted in the U.S. or contracts are negotiated and signed there by an agent, a USTB is more likely.
• Independent Distributors: Sales through independent resellers who act in the ordinary course of business usually do not create a USTB for the supplier.

Service Providers And Project Work

Long-term installations, construction, or sustained on-site service work almost always indicate USTB presence. Short-term technical visits for initial inspections or limited training could be treated differently, but repeated or extended deployments of personnel in the U.S. are strong indicators that the foreign provider is carrying on business in the United States.

Agency, Documentation, And Contracts

Documentation matters. Contracts should clearly state relevant terms: where offers are made and accepted, which law governs, and agent authority limits. Where a USTB risk exists, formalizing independent agent relationships, reducing agents' contracting authority, and documenting where key management decisions are made can materially affect tax outcomes.

Steps For Risk Management

• Perform an Activity Audit: Inventory all U.S. touches — warehousing, personnel visits, agent actions, and contract flows.
• Allocate Revenue: Use section 864 allocation principles to determine which revenues are attributable to U.S. activities.
• Consider Treaty Relief: If the foreign person is treaty-resident, evaluate whether the treaty’s permanent establishment standard limits USTB taxation.
• Engage Counsel Early: For recurring U.S. operations, obtain a written tax opinion or ruling when material amounts or long-term projects are involved.

In short, a U.S. Trade or Business (USTB) determination requires mapping activities to tests — physical presence, function, duration, and agency — and then applying allocation rules to identify effectively connected income. For merchants, warehouses, and service firms, early documentation and structure choices reduce uncertainty and help avoid unintended U.S. tax exposure.