Federal vs State R&D Tax Credits: How They Compare and How to Stack Them
The federal R&D tax credit under IRC Section 41 applies to all qualifying U.S. businesses, while over 35 states offer their own programs with varying rates, eligibility, and refundability. Federal and state credits can be claimed simultaneously, stacking the savings. Some states, including Arizona and Louisiana, offer refundable credits even for companies with no tax liability. Check if you qualify or learn how to claim.
35
+
States
offer R&D tax credits
5-
20
%
State Credit Rates
on qualifying expenses
$
300
m+
Credits Delivered
federal and state combined
100
%
Audit Defense
on every engagement
At a Glance
How Do Federal and State R&D Tax Credits Compare?
Federal Credit
IRC Section 41
State Credits
35+ Programs
Stackable
Maximize Your Savings
How Do You Stack Federal and State R&D Tax Credits?
Federal and state R&D credits can be claimed on the same qualifying research expenses. This is not double-dipping. They are two separate incentive programs administered by different tax authorities.
The federal credit is claimed using IRS Form 6765. Learn how to complete the claiming process. Both federal and state credits require meeting the IRS Four-Part Test.
Claim Both Credits
File the federal credit on your federal return and the state credit on your state return for the same qualifying expenses. The state credit reduces your state tax liability while the federal credit reduces your federal liability.
Section 280C Election
Under IRC Section 280C, you must either reduce your R&D expense deduction by the credit amount or elect to take a reduced credit (approximately 79% of the full credit). This election affects the net benefit of stacking. Strike calculates both scenarios to maximize your total savings.
Total Savings Example
A company with $2 million in QREs might claim a federal credit of $140,000 (7% ASC) plus a state credit of $100,000 (5% state rate), for a combined $240,000 in tax savings. Actual amounts vary by company and state.
State Spotlight
Which States Offer the Best R&D Tax Credit Programs?
While over 35 states offer R&D tax credits, some programs stand out for their generosity, refundability, or unique features. Here are several of the most notable
California
Rate
15%
of qualified research expenses above a base amount. A higher 24% rate applies to basic research conducted at universities and qualified non-profit organizations.
Carryforward
Indefinite
Refundable
No
Largest state program. No cap on credit amount.
Massachusetts
Rate
10% above base
Carryforward
15 years
Refundable
No
Strong biotech ecosystem.
Connecticut
Rate
Up to 6%
Carryforward
15 years
Refundable
Yes (65%)
Refundable at 65% of value.
Georgia
Rate
10% above base
Carryforward
10 years
Refundable
No
2-year lookback for amendments.
Texas
Rate
Franchise tax credit
Carryforward
20 years
Refundable
No
Against franchise tax, not income.
New York
Rate
Up to 9% for QETCs
Carryforward
Indefinite
Refundable
Yes (QETCs)
Refundable for small tech.
OBBBA Update
How Does the OBBBA Affect Federal and State R&D Credits?
The One Big Beautiful Bill Act (OBBBA) retroactively repealed Section 174 amortization for domestic research expenses for tax years 2022 through 2024. This change directly impacts both federal and state R&D tax credit calculations.
At the federal level, companies that reduced or skipped R&D credit claims during 2022 through 2024 can now amend their returns and recover those credits. The immediate expensing of R&D costs also increases the net value of the credit by reducing the Section 280C adjustment. The 280C election is critical when stacking credits. Read our detailed analysis: Section 280C elections after OBBBA.
At the state level, states that conform to federal R&D definitions will generally follow the OBBBA changes. However, state conformity varies. Some states automatically adopt federal tax code changes while others require separate legislation. Check your specific state's conformity status. Read the full OBBBA impact analysis: Five costly mistakes to avoid when filing retroactive claims.
"The OBBBA created a once-in-a-generation opportunity to recover R&D credits from 2022 through 2024. Companies should act quickly, as the earliest filing deadlines have already arrived."
Why Strike
Why Choose Strike Tax Advisory?
$300M+ in Credits Delivered
For more than 1,100 clients across software, manufacturing, aerospace, engineering, food and beverage, agriculture, and dozens of other industries.
Zero Upfront Fees
Strike works on 100% contingency. You pay nothing unless we successfully identify and deliver R&D tax credits.
Free Unlimited Audit Defense
Every engagement includes Strike Shield audit protection. If the IRS reviews your claim, we defend it at no additional cost.
NO OBLIGATION
Free 15-Minute Assessment
We can usually tell you within 15 to 30 minutes whether your company has a meaningful R&D credit opportunity and give you a rough estimate of the potential savings.
No cost. No obligation. No pressure.
QUICK ESTIMATE
Estimate Your R&D Tax Credit
Use our free calculator to get a quick estimate of how much your company could save.
Real Results
R&D Tax Credits We Have Delivered
$
3.7
m
Robotics Firm
35 employees. 70% of wages and 90% of expenses qualified. Custom robotics design, production, and integration.
$
668
k
Cybersecurity Company
SaaS firm with patent-pending encryption development. Qualified for federal and state credits.
$
657
k
Automotive Manufacturer
30 employees. Custom racing engine design and manufacturing innovation qualified at 62% of wages.
Federal vs State R&D Tax Credits: Frequently Asked Questions
Yes. Federal and state R&D credits are separate programs administered by different tax authorities. You can claim both on the same qualifying research expenses. This is one of the most effective tax savings strategies available to U.S. businesses investing in innovation.
Over 35 states offer some form of R&D tax credit or incentive. Credit rates, eligibility rules, carryforward periods, and refundability vary significantly by state. Some states mirror the federal program closely while others have unique requirements.
A refundable credit means the state will pay you the credit amount in cash even if you have zero state tax liability. States like Iowa, Connecticut, and Louisiana offer refundable R&D credits, which are particularly valuable for startups and companies operating at a loss.
Under IRC Section 280C, taxpayers claiming the R&D credit must either reduce their R&D expense deduction by the credit amount or elect to take a reduced credit (approximately 79% of the full credit). Strike analyzes both options and recommends whichever produces the greater net tax benefit.
Not always. While many states follow the federal definition of qualified research expenses, some states have different eligibility rules, exclude certain expense categories like contract research, or impose industry or size limitations. Each state program must be evaluated independently.
The OBBBA restored immediate federal R&D expensing for 2022 through 2024. States that automatically conform to the federal tax code will generally follow these changes. States with static conformity may require separate legislation. Strike tracks state conformity status for all 50 states.
How Much Could You Save with Federal and State R&D Credits?
Strike Tax Advisory calculates both federal and state credits on every engagement to maximize your total savings. Zero upfront fees. Free unlimited audit defense.