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

Updated: July 14, 2026

The Research and Development (R&D) tax credit is a federal incentive designed to encourage businesses to invest in innovation and technological advancement. It rewards companies developing new or improved products, processes, software, formulas, techniques, or other innovative solutions. 

Credits are not limited to laboratories or large corporations; businesses across manufacturing, construction, engineering, software development, and agriculture, among others, may be eligible.

The R&D tax credit reduces federal tax liability, thereby allowing organizations to offset development costs and invest more in innovation.

How Does the Research & Development Tax Credit Work?

The R&D tax credit rewards businesses for investing in innovation. Whether improving existing products, processes, or software, or developing entirely new technologies, you can qualify for this credit by engaging in activities promoting innovation. The R&D tax credit encourages businesses to invest in research and development by offsetting a percentage of those expenses through tax savings.

The credit applies to a wide range of qualifying expenses, such as wages, supplies, and contract research, all of which are outlined under Section 41 of the Internal Revenue Code. Typically, 6% to 8% of your company’s annual qualifying R&D expenses can be applied against your federal income tax liability, providing a significant financial edge.

In addition to federal R&D credits, many states offer their own R&D incentives, creating even more opportunities to reduce tax liabilities. Smaller businesses and startups may also be eligible for an annual R&D payroll tax offset of up to $250,000, allowing companies to reduce their quarterly payroll taxes even if they are not yet profitable.

How Is the R&D Tax Credit Calculated?

The R&D tax credit can be calculated in one of two ways: the regular credit method or the alternative simplified credit method. Both result in businesses being rewarded for increased investment in qualified research activities, but use different formulas to determine the credit amount.

The regular credit method is based on a percentage of current-year qualified research expenses exceeding the historical base amount. This method can benefit companies with detailed records of research spending across several years, but it can be harder to calculate.

Most businesses use the alternative simplified credit method as it doesn't require the same level of historical documentation and is less difficult to complete. This method calculates the credit based on qualified research expenses exceeding 50% of the average qualified expenses across the previous three years.

The credit amount can vary substantially based on industry, research activities, and eligible expenses. State-level R&D tax credits may also provide further savings. Given the complex nature of both processes, businesses should work with a qualified tax professional to evaluate eligibility, identify qualifying expenses, and determine which method provides the greatest benefit.

What Are Eligible R&D Expenses?

Expenses must be directly connected to activities intended to create or improve a product, process, software application, technique, formula, or invention to qualify for the R&D tax credit. The IRS typically requires that the work involve experimentation aimed at resolving technical uncertainty and improving functional performance.

Research and development doesn't only take place in laboratories: it can happen across a wide range of industries. Examples can include manufacturers who develop more efficient production processes, software companies creating new functionality, or engineering firms solving complex technical challenges. 

Common activities that may qualify include:

In addition to qualifying activities, businesses can claim certain expenses associated with research. Common qualified research expenses (QREs) include:

Whether a startup, small business, or established company, organizations of all sizes can qualify. Industries frequently benefiting from the R&D tax credit include manufacturing, software development, engineering, life sciences, agriculture, and construction, among many others.

What Expenses and Activities Don’t Qualify?

While many expenses can qualify for the R&D tax credit, several activities and costs do not qualify. It's important to understand these limitations to avoid claiming ineligible expenses. Some common examples of expenses and activities that are not eligible for the R&D tax credit include:

Focusing on the right activities and documenting your eligible expenses properly can help you maximize your tax savings while staying compliant with IRS regulations.

Do States Have an R&D Tax Credit?

In addition to the federal R&D tax credit, many states offer more localized research and development tax incentives. These programs also encourage innovation and economic growth by rewarding businesses that invest in new products, technologies, processes, or software within the state.

State R&D tax credits can vary significantly in terms of eligibility requirements, calculation methods, credit amounts, and whether unused credits can be carried forward or refunded. Some states closely follow federal definitions of qualified research expenses; others set their own rules and limitations.

More than 30 states currently offer some form of R&D tax incentives, including California, Arizona, Colorado, George, Illinois, Massachusetts, Minnesota, New York, Pennsylvania, Texas, and Virginia. If a business operates in several states, it may be able to claim tax credits in each of them.

State programs differ widely and are subject to change, so businesses should work with a qualified tax advisor to identify available opportunities and ensure they are complying with each state's requirements. 

How R&D Credits Benefit Your Business

Claiming R&D tax credits can positively impact your bottom line and your company’s future innovation. Here’s how these credits can benefit you.

Financial Advantages

An R&D tax credit can directly reduce your taxable income, which means you’ll have more cash available to reinvest in other areas of your business. These tax savings can also help you fund future R&D projects, enabling your business to remain competitive in agile markets.

Innovation Incentives

The R&D tax credit encourages businesses like yours to take calculated risks and invest in new technologies, products, and processes. Whether you're working to improve an existing product or launching a new one, the credit rewards your efforts to innovate. These incentives can help you maintain a leg up in your industry by allowing you to explore new opportunities while reducing financial risk.

How to Claim Tax Credits for R&D

The process of claiming R&D tax credits requires careful preparation and documentation. Follow these steps to ensure you maximize your benefit.

Documentation Requirements

You’ll need to keep thorough records of the work you’re doing. Make sure you have:

  1. Employee time tracking: Keep detailed records of how much time employees spend on R&D activities. This will allow you to allocate wages accurately when claiming the credit.
  2. Research process documentation: Document your research processes, experiments, and testing outcomes. This will show the IRS that your activities meet the eligibility requirements for the credit.
  3. Financial records: Maintain records of the costs associated with R&D activities, including wages, supplies, and any expenses related to contract research. Keeping these organized will simplify the claiming process.

Common Pitfalls to Avoid

Many businesses miss out on R&D tax credits due to common mistakes, such as:

Working with a tax professional can help you avoid these pitfalls and ensure you claim the credits you deserve.

Get R&D Tax Credit Help Today

Don’t leave valuable tax credits on the table. At Porte Brown, we’re here to help you navigate the complexities of claiming R&D tax credits. Our team of experts will work with you to ensure that your business gets the full benefit of these credits so you can focus on what you do best: driving innovation.

Contact us today to learn how we can help you maximize your R&D tax credits and reinvest in your business’s future.

Frequently Asked Questions About R&D Tax Credits

What is the 25% limitation for R&D credit?

The 25% limitation applies to businesses with over $25,000 in regular tax liability. The R&D credit is limited to 25% of your total tax liability above $25,000 in these cases.

What is the 4-part test for R&D credit?

To qualify for the R&D credit, your activities must meet the following criteria:

  1. They must be aimed at creating or improving a product, process, or software
  2. They must rely on principles of science or technology
  3. They must involve experimentation to resolve uncertainty
  4. The research must be aimed at improving functionality or performance

How long can you claim R&D credits?

You can claim R&D credits annually as long as your business continues to engage in qualifying research activities. You can retroactively claim credits for up to three previous tax years by filing an amended return.

Can I claim R&D tax credits for previous years?

Yes, you can claim R&D tax credits for up to three previous years by filing an amended tax return.

Are all industries eligible for the R&D tax credit?

Most industries that engage in research and development activities are eligible for the R&D tax credit, including manufacturing, technology, engineering, pharmaceuticals, and more. However, your activities must meet IRS criteria to qualify.

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