What Is the R&D Tax Credit in the U.S.?
The R&D tax credit is a federal tax incentive providing a dollar-for-dollar reduction on your taxable income when investing in qualified R&D expenses. The Tax Cuts and Jobs Act (TCJA) of 2017 reshaped claiming procedures, introducing Section 174 requirements to amortize qualifying expenses over five years (15 years for foreign research).
Who Qualifies for the R&D Tax Credit in the U.S.?
Four-Part Test
Qualifying research must meet four IRS-defined requirements:
- Permitted purpose - Focus on product, process, software, or technique improvement
- Elimination of uncertainty - Solve technical challenges with unclear outcomes
- Process of experimentation - Test alternatives through trial, modeling, or simulations
- Technological in nature - Rely on engineering, software, or biological sciences
Eligible Industries
- Software development (applications, cybersecurity, AI solutions)
- Manufacturing (production methods, material testing, efficiency improvements)
- Biotechnology and life sciences (pharmaceuticals, medical devices, lab research)
- Engineering and architecture (innovative structures, energy-efficient solutions)
- Aerospace and automotive (fuel efficiency, safety systems, autonomous technology)
What Costs Can Be Claimed for the U.S. R&D Tax Credit?
Qualified research expenses include:
- Employee wages - Salaries for engineers, developers, and technical staff on R&D activities
- Contractor expenses - 65% of what you pay third-party contractors conducting research
- Materials and supplies - Prototyping, testing, and experimentation materials
- Cloud computing and server costs - Development, simulations, and data testing expenses
Federal R&D Tax Credit Rates & Limits in the U.S.
IRC Section 41 provides credits equaling 20% of the amount by which the taxpayer’s qualified research expenses exceed a calculated base amount. Two calculation methods exist:
Alternative Simplified Credit (ASC): Claims 14% of R&D spending exceeding 50% of three-year average (6% for new businesses).
Regular Research Credit (RRC): Offers 20% credit on qualified spending exceeding calculated base amounts.
Startups with less than $5 million revenue can claim up to $500,000 per year toward payroll taxes instead of waiting for profitability.
State-Level R&D Tax Credits in the U.S.
Arizona: 24% of QREs up to $2.5M; 15% above; 75% refundable for small businesses
California: 15% of QREs exceeding base; 24% for university research; non-refundable, indefinite carryforward
Connecticut: 6% for small businesses (<$100M income); 1-6% tiered for larger businesses; 65% refund available for qualifying small firms
Delaware: 10% of QRE increase; 20%/100% for small businesses; fully refundable
Florida: 10% of increased R&D; $9M annual cap; application window March 20-26, 2025
Illinois: 6.5% of QREs exceeding base; non-refundable; 5-year carryforward
Indiana: 15% on first $1M increase; 10% thereafter; 100% sales tax exemption for R&D equipment
Louisiana: 30% for <50 employees; 10% for 50-99; 5% for 100+; transferable SBIR/SBTT credits
Maine: 5% of QREs exceeding base; 7.5% for basic research payments; 15-year carryforward
Maryland: 10% of QREs over base; $12M annual cap; $3.5M reserved for small businesses; available through June 30, 2027
Massachusetts: Limited to $25,000 excise plus 75% of remainder; 15-year carryforward
Minnesota: 10% of first $2M; 4% for excess; 15-year carryforward
Missouri: 15% of QRE increase; 20% with university research; 10-year carryforward
Nebraska: 15% of federal credit; 35% for university research; refundable
New Hampshire: 10% of QRE increase; $7M annual cap; 5-year carryforward
New Jersey: 10% of eligible expenses; 7-15 year carryforward
New Mexico: 5% of QREs; 10% in rural areas; additional 5% for payroll increases
New York: 15% for ≥10 employees; 20% for <10; up to $500,000 annually refundable for 3 years
North Dakota: 25% of first $100,000; 8% beyond; 15-year carryforward; transferable for small businesses
Ohio: 7% of net excess QREs; 7-year carryforward; offsets Commercial Activity Tax
Pennsylvania: 10% standard; 20% for small businesses; $55M annual cap; 15-year carryforward
Rhode Island: 22.5% of first $111,111; 16.9% above; 7-year carryforward
South Carolina: 5% of in-state QREs; 50% tax liability cap; 10-year carryforward
Texas: Franchise tax credit or sales tax exemption option per tax year
Utah: 5% of QREs exceeding base; 5% basic research; 7.5% current-year QREs
Vermont: 27% of federal R&D credit; 10-year carryforward
Virginia: Minor: 15% first $300,000 (20% with university), refundable; Major: 10% non-refundable
Wisconsin: 5.75% of QREs; 2.875% if no prior QREs; up to 25% refundable; 25-year carryforward
Additional states with credits include Colorado, Georgia, Hawaii, Idaho, Iowa, Kansas, Kentucky, and Arkansas.
How to Claim the R&D Tax Credit in the U.S.?
Step 1: Identify R&D Activities Using the Four-Part Test
Confirm work meets IRS Four-Part Test requirements; document how projects align with guidelines.
Step 2: Gather Financial and Technical Documentation
Collect:
- Payroll records showing employee wages on R&D
- Supply, materials, and contractor payment expenses
- Technical documents (reports, prototypes, test results)
Step 3: File IRS Form 6765 (Credit for Increasing Research Activities)
Complete Form 6765 with income tax return using regular or simplified credit methods.
Step 4: Apply Credits Against Payroll Taxes (If Applicable)
Startups with less than $5 million revenue can offset up to $500,000 against payroll taxes. Qualification requires <$5M gross receipts and less than five years of gross receipt history.
What’s the Maximum R&D Tax Credit You Can Claim in the U.S.?
No strict federal limit exists; amounts depend on qualified expenses. State-level caps vary; check state tables for specific restrictions.
How to Maximize Your R&D Tax Credit in the U.S.
- Track R&D expenses in real-time to avoid lost credits
- Claim both federal and state incentives
- Ensure IRS compliance with organized documentation
- Use automation tools (like Chrono Platform) to generate reports that align with IRS guidelines
Streamline Your R&D Tax Credit Claims in the U.S.
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