Glossary term

Research and Development (R&D) Credit

The research and development credit is a federal business tax credit for certain qualified research activities and expenses.

Updated

May 19, 2026

Read time

3 min read

What Is the Research and Development (R&D) Credit?

The research and development credit, often called the R&D credit or research credit, is a federal business tax credit for certain qualified research activities and expenses. It is designed to encourage businesses to invest in developing or improving products, processes, software, formulas, techniques, or inventions.

The credit is technical. A business does not qualify simply because it spends money on product development or innovation. The work must meet tax-law requirements, and the business needs records that connect expenses to qualifying activities.

Key Takeaways

  • The R&D credit is a federal tax credit for qualified research activities.
  • Eligible work generally must involve technical uncertainty, experimentation, and a permitted business purpose.
  • Qualified expenses may include certain wages, supplies, contract research, and computer rental costs.
  • Some qualified small businesses may be able to use the credit against payroll taxes under specific rules.
  • Documentation is critical because the credit depends on both the activity and the related expenses.

How the R&D Credit Works

A company identifies qualified research activities and the expenses connected to those activities. The credit calculation can be complex and may use different methods depending on the taxpayer's facts. The result is a tax credit that may reduce income tax, and in some cases may be available for qualified small business payroll tax offset.

Common qualifying work may involve improving product performance, developing new software functionality, testing prototypes, resolving technical uncertainty, or experimenting with alternative designs. Routine data collection, cosmetic changes, market research, and ordinary quality control generally do not carry the same weight.

Common Expense Categories

Expense Type

Potential Treatment

Employee wages

May qualify when tied to qualified research work

Supplies

May qualify when used in research activities

Contract research

May partly qualify if requirements are met

Computer rental or cloud costs

May qualify in limited circumstances

General overhead

Often does not qualify directly

Documentation and Risk

The R&D credit can be valuable, but it is also an area where weak documentation creates tax risk. Businesses should preserve project records, technical notes, payroll allocations, contracts, invoices, testing records, and explanations of the uncertainty and experimentation involved.

For small businesses, the credit may affect cash flow if it can offset payroll taxes, but eligibility and claiming mechanics are specific. The business should confirm current IRS forms, limits, and timing before counting on the credit.

The Bottom Line

The R&D credit rewards certain qualified research spending with a federal tax credit. It can be powerful for innovative businesses, but the value depends on technical eligibility, expense tracking, and careful documentation.

Related Terms