Qualified Research

Can U.S. Testing of Imported Products Qualify for the R&D Tax Credit?

The foreign-research exclusion under Section 41 turns on where the research is performed, not where the products originate. U.S.-based technical testing and development of imported products may qualify if it independently satisfies Section 41, but routine inspection and product selection generally is not qualified research.

A common question is whether U.S.-based testing of imported products can qualify for the federal R&D tax credit under Section 41. This page addresses the interaction between the foreign-research exclusion and the qualification analysis, and it is sourced heavily because the distinction is important. The short answer is that the foreign-research exclusion turns on where the research is performed, not where the products originate. U.S.-based technical testing and development may qualify if it independently satisfies Section 41, but routine inspection and product selection generally is not qualified research. This page is educational and is not individualized advice. For the foundational framework, see our page on qualified research.

The Foreign-Research Exclusion Turns on Where Research Is Performed

Section 41(d)(4)(F) provides that the term "qualified research" does not include any research conducted outside the United States, the Commonwealth of Puerto Rico, or any possession of the United States. This is a geographic exclusion: it turns on where the research activities are physically performed, not on the origin of the products being tested, the nationality of the taxpayer, or where the business component is sold. For more, see our page on research outside the United States.

This means that imported product origin alone does not necessarily determine where research occurs. A product manufactured overseas and imported into the United States can be the subject of qualified research if the research activities — the testing, evaluation, and development work — are performed in the United States and satisfy the other requirements of Section 41.

U.S.-Based Testing Must Independently Satisfy Section 41

U.S.-based testing of imported products is not automatically qualified research merely because it occurs in the United States. The testing must independently satisfy the four-part test: the work must be undertaken for a permitted purpose, be technological in nature, be intended to eliminate uncertainty, and be conducted through a process of experimentation, all with respect to a business component. Routine inspection of imported products to verify conformance to specifications — quality control on received goods — generally is not qualified research, because there is no technical uncertainty and no process of experimentation. For more on this distinction, see our page on quality control testing.

When U.S. Testing of Imported Products May Warrant Review

U.S.-based testing of imported products may warrant review when the testing is part of a process of experimentation directed at developing or improving a business component. For example:

  • A U.S. company that imports components from an overseas supplier, is uncertain whether a modified component configuration can achieve a performance target, and conducts U.S.-based testing of alternative configurations to resolve the uncertainty.
  • A U.S. company that receives prototype units from an overseas manufacturer, tests them in the United States to evaluate alternative designs, and uses the results to develop an improved product.

In each case, the U.S.-based testing must satisfy the four-part test independently — the foreign origin of the products does not help or hurt the qualification analysis, and the U.S. location of the testing satisfies the geographic requirement.

Routine Inspection vs. Experimentation

A key distinction is between routine inspection of imported products and experimentation:

  • Routine inspection — verifying that imported products meet established specifications. This is quality control on received goods, not qualified research.
  • Product selection — testing commercially available imported products to select one for purchase. This is a purchasing evaluation, not qualified research. For more, see our page on product comparison testing.
  • Experimentation — testing alternative designs or configurations to resolve a technical uncertainty about a business component being developed or improved. This may warrant review as qualified research, provided the other elements are met and the testing is performed in the United States.

U.S. Wages, Supplies, and Contract Research

Where U.S.-based testing constitutes qualified research, the costs that may be taken into account include certain wages of U.S.-based employees who perform or directly support the qualified research, certain supplies consumed in the U.S. testing, and certain contract research costs for U.S.-based outside parties performing research on behalf of the taxpayer. The foreign-research exclusion means that costs associated with research performed outside the United States — including by the overseas supplier — generally are not taken into account. For more on the cost framework, see our page on qualified research expenses.

Hypothetical Example

Consider a U.S. company that imports electronic components from an overseas manufacturer and is developing a new product that uses those components. The company is uncertain whether a modified circuit configuration can achieve a required signal-integrity target. The company's U.S.-based engineers test several alternative configurations in the company's U.S. lab, evaluate the results, and modify the design based on the findings. The U.S.-based testing — performed in the United States, directed at eliminating a technical uncertainty about the company's own product — may warrant review as qualified research, provided the other elements are met. The wages of the U.S. engineers and the materials consumed in the U.S. testing may be qualified research expenses.

By contrast, if the same company simply inspects incoming shipments to verify that the components meet the supplier's specifications, that is routine inspection, not qualified research.

This example is illustrative only and does not state that the activity definitely qualifies.

Documentation That May Help

Records that can help support U.S. testing claims include records showing where the testing was performed (U.S. location), test plans describing the uncertainty and alternatives, test results, records connecting the testing to the specific business component, and wage and material records for the U.S.-based work. For more, see our page on R&D tax credit documentation.

Key Takeaway

The foreign-research exclusion under Section 41 turns on where the research is performed, not where the products originate. U.S.-based technical testing and development of imported products may qualify if it independently satisfies Section 41, but routine inspection and product selection generally is not qualified research. Because the geographic and qualification analyses are fact-specific, professional review is appropriate before claiming the credit.

Sources

  1. Internal Revenue Code §41

    Cornell Law Institute (LII)

    Section 41(d)(4)(F) excludes research conducted outside the United States, Puerto Rico, and U.S. possessions from qualified research; §41(d) sets the four-part test.

  2. Treasury Regulation §1.41-4

    Cornell Law Institute (LII)

    Defines qualified research, the four-part test, and the process of experimentation.

  3. Instructions for Form 6765

    Internal Revenue Service

    Summarizes the foreign-research exclusion and qualified-research requirements.

  4. Research Credit

    Internal Revenue Service

    IRS landing page for the Credit for Increasing Research Activities.

By R&D Ledger Editorial Team

Last reviewed: August 2026

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