R&D Tax Credit

Who Can Claim the R&D Tax Credit?

Potential applicability of the R&D tax credit depends primarily on the activities a business conducts and the applicable rules — not on industry labels or company size. Businesses in many industries may conduct potentially relevant activities, but industry alone does not establish qualification.

A common question about the federal R&D tax credit is which businesses can claim it. The short answer is that potential applicability depends primarily on the activities a business conducts and the applicable rules under Section 41 of the Internal Revenue Code — not on a simple industry label or company size. This page explains, in general terms, who may be associated with the credit and why the analysis turns on facts and circumstances. It is not individualized advice. For a foundational introduction, see our page on what the R&D tax credit is.

Who May Be Eligible to Claim the Credit?

The credit for increasing research activities is available to taxpayers that conduct qualified research and incur qualified research expenses that meet the requirements of Section 41. The IRS reports and administers the credit through Form 6765. Whether a particular taxpayer can claim a credit depends on whether its activities constitute qualified research, whether its costs are qualified research expenses, and whether the applicable exclusions, elections, and limitations are satisfied. There is no general rule that "most businesses qualify."

Activities Matter More Than Industry Labels

Industry alone does not establish qualification. Section 41 and the Treasury Regulations (§1.41-4) focus on the nature of the activities — whether they are undertaken for a permitted purpose, are technological in nature, are intended to eliminate uncertainty, and are conducted through a process of experimentation with respect to a business component. A business in an industry commonly associated with research may conduct activities that do not qualify, and a business in an industry not commonly associated with research may conduct activities that do. The question is what the business actually did, not what sector it is in. For more, see our pages on qualified research and the four-part test.

Businesses of Different Sizes

Company size alone does not determine whether research satisfies Section 41. The qualified-research analysis applies to the activities and costs regardless of the size of the company that conducts them. A larger company and a smaller company can both conduct qualified research, and either can conduct activities that do not qualify. Size can, however, affect other aspects of a taxpayer's tax situation, such as the availability of certain elections.

Startups and the Payroll Tax Election

Startups and newer companies can present a different tax situation from established, profitable companies. A qualified small business may, under Section 41(h), elect to apply a portion of the research credit against payroll tax rather than income tax — an option designed to benefit eligible companies that have little or no income tax liability. Eligibility depends on gross-receipts requirements, and the election is separate from the general research-credit analysis. The availability of the payroll-tax election does not change whether the underlying activities constitute qualified research. For more, see our page on the R&D payroll tax credit.

Examples of Industries Where Relevant Activities May Occur

The following are examples of industries where businesses may perform activities that warrant review for potential qualification. None of these industries automatically qualifies, and a business in any of them may also conduct activities that do not qualify:

  • Manufacturing, where experimentation with materials, processes, or product designs may occur.
  • Software and technology, where evaluating alternative architectures or resolving technical capability questions may occur.
  • Engineering and construction-related processes, where process improvement or design uncertainty may arise.
  • Agriculture and food processing, where formulation or process experimentation may occur.
  • Life sciences and health-related product development, where biological or chemical inquiry may occur.
  • Aerospace and automotive, where performance, reliability, and design uncertainty may arise.

These are examples of businesses that may perform relevant research, not industries that automatically qualify.

Activities That May Require Special Review

Section 41 identifies categories of activity that are excluded from qualified research or that require special review, including research after commercial production begins, adaptation of an existing product or process to a particular customer's needs, duplication of an existing business component, surveys or routine data collection, certain internal-use software, research outside the United States, research in the social sciences, arts, or humanities, and funded research. A business in any industry may have activities that fall within these categories, and such activities generally do not qualify. For more, see our page on qualified research.

Qualified Research Expenses

Even where activities may qualify, the costs that may be taken into account are limited to qualified research expenses — certain wages, certain supplies, and certain contract research — that meet the requirements of Section 41(b) and the Treasury Regulations (§1.41-2). Not every cost associated with a project is a QRE, and allocations are often required. For more, see our page on qualified research expenses.

Documentation

Because qualification is a facts-and-circumstances determination, documentation is central. Records connecting activities, costs, and business components can help support a credit claim and help a business respond if the IRS asks questions. For more, see our page on R&D tax credit documentation.

Professional Review

Because whether a business can claim a credit depends on its specific activities, costs, and facts, professional review is appropriate before claiming the credit. A qualified tax professional can help evaluate whether activities qualify and how, if at all, the credit applies. This page is educational and is not individualized advice.

Key Takeaway

Potential applicability of the R&D tax credit depends primarily on the activities a business conducts and the applicable rules, not on industry labels or company size. Businesses in many industries may conduct potentially relevant activities, but industry alone does not establish qualification, and the payroll-tax election is separate from the general research-credit analysis. Because these determinations are fact-specific, professional review is appropriate. For broader context, see our page on what the R&D tax credit is.

Sources

  1. Internal Revenue Code §41

    Cornell Law Institute (LII)

    Section 41(d) defines qualified research and its exclusions; §41(b) defines qualified research expenses; §41(h) addresses the qualified small business payroll tax election.

  2. Treasury Regulation §1.41-4

    Cornell Law Institute (LII)

    Regulatory definition of qualified research and the four-part test applied to a business component.

  3. Instructions for Form 6765

    Internal Revenue Service

    Summarizes qualified research, excluded activities, and the reporting of qualified research expenses.

  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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