State R&D Tax Credit Matrix: A 2026 Programmatic Guide

Why state R&D credits matter on top of the federal credit

State R&D credits matter because they stack. A company that qualifies for the federal credit under IRC Section 41 can usually claim a second credit from its state on the same qualified research expenses, or QREs. Most states adopt the federal Section 41 definition of qualified research by reference, so the work you already did to support the federal claim carries over.

That second credit typically adds another 3% to 24% of QREs. In a handful of states, it comes back as a cash refund rather than a reduction of tax owed.

The federal credit is worth roughly 6% to 10% of QREs on a net basis under the regular and Alternative Simplified Credit methods. A state credit can lift the combined benefit meaningfully. Arizona alone returns 24% of the first $2.5 million of qualifying spend. For a pre-profit SaaS company, the difference between a nonrefundable state credit and a refundable one is the difference between a carryforward on paper and a check in the bank.

Three reasons the state layer earns the extra filing work:

• Cash for pre-revenue companies. States like Connecticut, Hawaii, New York, and now Minnesota return part or all of the credit as cash, even for a zero-tax loss company.
• Different base and rate math. A state can produce a credit in a year the federal base amount limits the federal credit, because state base periods and rates differ.
• Multi-state performance of R&D. Companies with engineers in more than one state can often claim in more than one state, since each state credits the QREs performed inside its borders.

One thing changed for 2025. The One Big Beautiful Bill Act added IRC Section 174A and restored immediate expensing of domestic research costs for tax years beginning after December 31, 2024, reversing the earlier five-year capitalization rule. The credit itself was unchanged, but domestic R&D is again currently deductible while you claim it. We break down that shift in our guide to the One Big Beautiful Bill Act tax changes.

How to read the state R&D credit matrix

Read each state row against six columns. This state R&D tax credit matrix uses one row per state and one column per decision you actually have to make: rate, refundability, carryforward, federal conformity, and the single quirk that changes the filing.

• State. The taxing jurisdiction and its administering agency, whether a Department of Revenue, a Franchise Tax Board, a Comptroller, or an economic development agency for application-based programs.
• Credit rate. The statutory percentage applied to qualified research expenses, usually above a base amount. Some states tier the rate by spend level or headcount.
• Refundable? Whether the state pays cash for the portion of the credit that exceeds tax owed. “No” means the credit only reduces tax and any excess carries forward. “Partial” means a fixed percentage of the unused credit is refundable. “Exchange” means the state buys back the unused credit at a discount.
• Carryforward. How many years an unused nonrefundable credit can move to future returns. “Indefinite” means no expiration.
• Conforms to federal Section 41? Whether the state adopts the federal definition of qualified research and QREs. Most do, usually with a rule that the research be performed inside the state.
• Notable rule. One state-specific quirk that changes the value or the filing, such as a headcount cap, an annual statewide pool, a payroll-withholding offset, or a pending sunset.

Here’s the durable rule of thumb. If a state conforms to Section 41, the qualification work behind your federal claim carries straight into the state claim. The state analysis then reduces to three questions: rate, refundability, and timing. If you want a refresher on what counts as qualified work, our list of R&D tax credit qualified research expense examples walks through the federal test that most states borrow.

The state-by-state R&D credit matrix

Here’s the R&D tax credit by state for 2026, one row per active state program. The table covers states with an active R&D credit program, built to read as a table or lift as a snippet. Verify program status before filing, because several states run annual allocation caps and a few have pending legislative changes as of August 2026.

State	Credit Rate	Refundable?	Carryforward	Conforms to Federal Section 41?	Notable Rule
California	15% over base, plus 24% of basic research payments	No	Indefinite	Yes, research must be in CA	ASC method now available at 3% (1.3% if no prior QREs) under SB 711. $5M business-credit usage cap for 2024-2026.
New York	Excelsior R&D: 50% of the NY share of the federal credit, capped at 6% of NY QREs (8% green). Life Sciences: 15% or 20%	Yes (both programs)	N/A (refundable)	Yes	Program-based, not as-of-right. Life Sciences capped at $500K per year and $1.5M lifetime for new firms.
Massachusetts	10% over base, plus 15% of basic research payments	No (refundable for certified life sciences)	15 years	Yes	Portion disallowed by the 75% liability limit carries forward indefinitely.
Texas	8.722% (10.903% with a Texas higher-ed institution)	No	Yes (multi-year franchise tax reports)	Yes	SB 2206 replaced the prior credit and repealed the R&D sales-and-use tax exemption, effective January 1, 2026.
New Jersey	10% over base, plus 10% of basic research payments	No	7 years (15 for certain tech and biotech)	Yes, must match the federal method	File Form 306 with the CBT return. Method (regular or ASC) must match the federal claim.
Georgia	10% of the increase in GA QREs over base	No (offsets payroll withholding)	5 years (credits from tax years beginning on or after Jan 1, 2025)	Yes	Offsets up to 50% of GA income tax, then excess can offset state payroll withholding via Form IT-WH.
Arizona	24% of first $2.5M, 15% above (through 2030)	Partial (75% refund of excess) for firms under 150 employees	Yes (nonrefundable portion)	Yes	Refundable portion capped at $5M per year statewide, administered by the Arizona Commerce Authority.
Colorado	3% of the increase over the prior two-year average	No	Indefinite	Yes	Enterprise Zone only. Claimed 25% per year across four years.
Pennsylvania	20% for small business (assets under $5M), 10% for others	No, but credits are sellable	15 years	Yes	Application via myPATH between Aug 1 and Dec 1. Unused credits can be sold. $60M annual cap ($12M for small business).
Connecticut	Incremental 20%, nonincremental tiered 1% to 6%	Exchange for cash	Until used	Yes	QSBs (gross income up to $70M) can exchange unused credits for 65% cash (raised to 90% for biotech in 2025).
Minnesota	10% of first $2M over base, 4% above	Partial	15 years	Yes	Now partially refundable. 19.2% of unused credit for tax year 2025, rising to 25% for 2026 and 2027.
Illinois	6.5% of the increase over a three-year base	No	5 years	Yes	Extended through December 31, 2031 by 2024 legislation.
Ohio	7% of the excess over the three-year average	No	7 years	Yes	Nonrefundable credit against the Commercial Activity Tax (CAT), not the income tax.
Indiana	15% of first $1M over base, 10% above (ASC option 10%)	No	10 years	Yes	Two calculation methods. ASC uses 10% over 50% of the prior three-year average.
Virginia	Expired	Was refundable (small) / nonrefundable (major)	N/A	Yes	Both credits sunset for tax years beginning on or after January 1, 2025. Renewal pending in the 2026 session as of August 2026.
Wisconsin	5.75% over base (11.5% for certain energy and engine research)	Partial (25% of the credit)	15 years	Yes	25% of the credit is refundable for tax years beginning after December 31, 2023.
Maryland	Basic 3% up to base, Growth 10% above base	Yes, for small business (assets under $5M)	Carryforward for others	Yes	Application to the Department of Commerce by November 15. $12M annual cap, $250K per applicant.
Louisiana	30% (under 50 employees), 10% (50 to 99), 5% (100 or more)	Limited	5 years	Yes	Annual allocation program. FY 2025-2026 fully issued as of August 2026, reopens July 1, 2026.
Rhode Island	22.5% of first $111,111, 16.9% above	No	7 years	Yes	File Form RI-7695E, which mirrors federal Form 6765.
New Mexico	5% basic (10% rural), plus a 5% additional credit (10% rural)	No	Yes	Yes	Offsets gross receipts, compensating, and withholding tax, not only income tax. Application-based.
Hawaii	Equal to the federal Section 41 credit (as modified)	Yes (fully refundable)	N/A (refundable)	Yes	Certification via DBEDT, first come, first served. $5M annual statewide cap. Sunsets December 31, 2029.

States with no general R&D credit. Nevada, Washington, Wyoming, South Dakota, Tennessee, Oklahoma, Oregon, North Carolina, Montana, West Virginia, Missouri, and the District of Columbia don’t offer a broad state R&D credit as of August 2026. Companies in these states should still claim the federal credit under Section 41 and, if they qualify as a startup, the payroll offset. Where your team performs the work drives which of these states you can claim, which is why multi-state tax nexus matters as much for credits as it does for filing obligations.

Refundable versus nonrefundable: which states pay cash

The single most important distinction for a pre-profit company is whether the state pays cash. A nonrefundable credit only helps a company that already owes state tax. A refundable or exchangeable credit puts money back into the business regardless of liability. Cash beats a carryforward.

States that return cash in 2026:

• Connecticut. A qualified small business with gross income up to $70 million and no tax liability can exchange unused R&D credits for a cash refund equal to 65% of the credit value. The exchange rate was raised to 90% for biotech companies in 2025.
• Hawaii. The Tax Credit for Research Activities is fully refundable for qualified high-technology businesses with 500 or fewer employees, subject to a $5 million annual statewide cap and certification through the state’s economic development agency.
• New York. Both the Excelsior R&D credit and the Life Sciences R&D credit are fully refundable.
• Minnesota. Newly partially refundable. Taxpayers may refund 19.2% of the unused credit for tax year 2025, rising to 25% for tax years 2026 and 2027.
• Arizona. Firms with fewer than 150 employees can receive a cash refund of 75% of the credit that exceeds tax owed, subject to a $5 million annual statewide cap.
• Wisconsin. 25% of the credit is refundable for tax years beginning after December 31, 2023.
• Maryland. Refundable for small businesses with assets under $5 million, subject to the annual cap.
• Pennsylvania. Not refundable to the earner, but unused credits can be sold to another taxpayer, which turns them into cash at roughly 90 cents on the dollar.

Nonrefundable with carryforward covers most other programs, including California with an indefinite carryforward, Massachusetts at 15 years, New Jersey at 7 to 15 years, Illinois at 5 years, Ohio at 7 years, Indiana at 10 years, and Rhode Island at 7 years. These credits are still valuable, but the payoff is deferred until the company has state tax to offset.

The five most generous state R&D credits in 2026

These five programs combine a high rate with a cash path or a durable, high-value carryforward. Mechanics are stated for 2026.

1. Arizona. Rate is 24% of the first $2.5 million of qualifying expenses plus 15% above that, in place through 2030, with rates stepping down to 20% and 11% in 2031. Companies with fewer than 150 employees can convert the excess into cash at 75%, capped at $5 million per year statewide through the Arizona Commerce Authority. The nonrefundable portion is administered by the Arizona Department of Revenue.

2. California. The California R&D tax credit is 15% of QREs over a base amount, plus 24% of basic research payments to qualified universities and nonprofits. It’s nonrefundable with an indefinite carryforward and no carryback. SB 711, signed in October 2025, advanced California’s IRC conformity date to January 1, 2025 and replaced the Alternative Incremental Credit with the Alternative Simplified Credit at California rates of 3%, or 1.3% for taxpayers with no QREs in the prior three years, for tax years beginning on or after January 1, 2025. A $5 million cap on total business credits applies for tax years 2024 through 2026, and taxpayers may elect on Form FTB 3870 to receive an annual refundable credit equal to 20% of the amount disallowed by the cap over a five-year period, so the credit isn’t lost. The California Franchise Tax Board instructions for Form FTB 3523 carry the current mechanics.

3. New York. The New York R&D tax credit isn’t an as-of-right credit. New York delivers value through two refundable programs. The Excelsior R&D credit equals 50% of the portion of the federal credit attributable to New York research, capped at 6% of New York QREs, or 8% for qualified green projects. The Life Sciences R&D credit is fully refundable at 15% for firms of 10 or more employees and 20% for firms under 10 employees, capped at $500,000 per year and $1.5 million lifetime, for new life sciences businesses only. Both require program participation, so timing and certification matter.

4. Minnesota. Rate is 10% of the first $2 million of QREs over a base amount and 4% above that. The 2026 story is refundability. Taxpayers can now refund 19.2% of the unused credit for tax year 2025 and 25% for tax years 2026 and 2027, with the remainder carried forward up to 15 years. File Schedule RD.

5. Georgia. Rate is 10% of the increase in Georgia QREs over a base amount. The credit is nonrefundable against income tax, but it offsets up to 50% of Georgia income tax, and any excess can be applied against state payroll withholding through Form IT-WH. That delivers cash-flow relief to labor-heavy R&D operations before profitability. Carryforward is five years for credits generated in tax years beginning on or after January 1, 2025.

Two honorable mentions. Illinois offers a reliable 6.5% credit now extended through 2031, and Connecticut’s 65% cash exchange, raised to 90% for biotech, is one of the strongest cash paths in the country for a company with no tax liability.

Stacking with the federal credit and the payroll offset

The high-value move is to claim the federal credit, the federal payroll offset, and the state credit on the same qualified research. Done in the right order, a pre-profit SaaS company can turn R&D spend into cash at both levels in the same year.

The federal credit. Under IRC Section 41, the regular credit is 20% of QREs over a base amount, and the Alternative Simplified Credit is 14% of QREs over 50% of the prior three-year average, or 6% if there were no QREs in the prior three years. The IRS instructions for Form 6765 carry the current method detail.

The federal payroll offset. A qualified small business, defined as one with gross receipts under $5 million for the year and no gross receipts before the five-year lookback window, can elect to apply up to $500,000 of the research credit against the employer share of payroll taxes for tax years beginning after December 31, 2022. The election is made on Form 6765, Section D, and claimed on Form 8974 with the employer’s quarterly Form 941. The credit first reduces the employer share of Social Security tax, then Medicare, with any excess carried to the next quarter. The IRS lays out the rules on its qualified small business payroll tax credit page, and we go deeper in our guide to the R&D tax credit against payroll taxes.

The state credit on top. Because most states conform to the Section 41 definition, the same QRE study supports the state claim. A California SaaS company can claim the federal credit, elect the federal payroll offset, and separately claim the 15% California credit on its California QREs. The state credit computes on its own base and rate, so it can produce value even when the federal base amount is high.

Multi-state performance. Each state credits the qualified research performed inside its borders. A company with engineers in California, Texas, and Georgia can often file in all three, allocating QREs by where the work was performed. Each state has its own base period, rate, and refundability rule, and Texas added a new franchise tax credit structure under SB 2206 effective January 1, 2026. Where your engineers sit drives which credits you can claim, the same way physical presence drives your state sales tax obligations.

Documentation requirements and claim timing

The federal and state credits share one substantiation standard, so build the record once and use it everywhere. Most state agencies examine claims under substantially the rules the IRS applies under Section 41.

Contemporaneous QRE records. Keep project-level documentation that ties wages, supplies, and contract research to a qualified activity meeting the four-part test: permitted purpose, technological in nature, elimination of uncertainty, and a process of experimentation. Time-tracking or a reasonable allocation of engineering wages, contemporaneous project notes, and payroll records are the core of a defensible claim. The IRS expanded business-component reporting on Form 6765 in its December 2025 instructions, which raises the level of detail expected on the federal return. Our R&D tax credit questionnaire is a practical starting point for assembling that record.

State forms, and where they diverge:

• California. Form FTB 3523. Research must be performed in California. For the $5M cap years, Form FTB 3870 elects the refundable credit.
• New Jersey. Form 306, filed with the CBT return. The state method must match the federal method for privilege periods beginning on or after January 1, 2018.
• Georgia. Form IT-RD with the return, plus Form IT-WH to elect the payroll-withholding offset, which must be filed within 30 days of the earlier of the return due date with extensions or the date the return was filed.
• Rhode Island. Form RI-7695E, which mirrors federal Form 6765.
• Minnesota. Schedule RD.

Application-based and allocation-limited programs. Several states aren’t automatic. They require an application and run out of money. Pennsylvania takes applications on myPATH between August 1 and December 1 for the prior tax year, against a $60 million statewide cap. Maryland requires an application to the Department of Commerce by November 15. Louisiana runs an annual allocation, and Hawaii certifies through its economic development agency first come, first served against a $5 million pool. Miss the window, forfeit the credit for the year, so calendar them.

Amended-return lookback. The federal payroll election can’t be made on an amended return, only on a timely filed original return including extensions. The federal income tax credit can generally be claimed on an amended return within the normal refund statute, though the IRS requires the added Section 41 detail for refund claims. State amended-return windows vary, so confirm the specific state’s lookback before filing a retroactive claim.

How Indinero handles multi-state R&D claims

Multi-state R&D claims are one engagement at indinero, not a stack of disconnected filings. The same tax team that runs your federal credit handles the payroll-offset election and each state claim, including the QRE allocation across the states where your engineers actually work.

R&D credit capture is embedded in your monthly tax engagement, not billed as a separate percentage of the captured credit. The team that sees your engineering payroll ledger every month is the team that files the credit, so capture happens year-round instead of getting reconstructed every spring.

Indinero serves bootstrapped, PE-backed, LLC, S-Corp, and multi-entity growth companies, not just VC-backed Delaware C-Corps. That breadth matters for state credits, where your entity type and where you file change which programs you can actually use.

Our tax team coordinates the Section 174A expensing rules with Section 41 credit capture on the same return, so the deduction timing and the credit get handled together. When one state requires the state method to match the federal method, and another offsets the credit against payroll withholding instead of income tax, those interactions get resolved in one place. Indinero has operated continuously since 2009, serves 500+ regular customers, and is SOC 2 compliant (2026). Pricing starts at $750/mo.

Claiming the federal credit and stopping there leaves state money on the table, especially if your team ships code from more than one state. Here’s the better path. One team, one engagement, every credit you’re owed. Reach out for a free consultation. We’d love to learn about your R&D expense base and find where we can help. Start with our business tax services, the same team that keeps your tax strategy year-round rather than seasonal.

Frequently asked questions

Common questions we hear from founders and finance leads about state R&D credits, refundability, and multi-state stacking.

Which states offer an R&D tax credit in 2026?

More than 30 states offer an R&D tax credit in 2026, including California, New York, Texas, Massachusetts, Arizona, Georgia, and Pennsylvania. Most conform to the federal Section 41 definition, so the qualification work behind your federal claim carries into the state claim. States like Nevada, Washington, Wyoming, and Oregon have no general credit, so indinero focuses your claim where your engineers actually perform the work.

How does a state R&D tax credit stack with the federal R&D credit?

A state R&D tax credit stacks by claiming a second credit on the same qualified research expenses that support your federal Section 41 claim. Because most states conform to the federal definition, one QRE study supports both, and the state credit computes on its own base and rate. A California company can claim the federal credit, elect the payroll offset, and separately claim the 15% California credit, all handled in one indinero engagement.

Which states have refundable R&D tax credits?

Connecticut, Hawaii, New York, Minnesota, Arizona, Wisconsin, and Maryland offer refundable or cash-back R&D tax credits in 2026. Hawaii and New York pay fully refundable credits, while Arizona refunds 75% of excess for firms under 150 employees and Connecticut exchanges unused credits for 65% cash. For a pre-profit SaaS company, cash beats a carryforward, which is why indinero prioritizes these programs when mapping your claim.

What is California’s R&D tax credit rate and how does it work?

California’s R&D tax credit is 15% of qualified research expenses over a base amount, plus 24% of basic research payments to universities. It’s nonrefundable with an indefinite carryforward and no carryback, and research must be performed in California on Form FTB 3523. SB 711 advanced conformity to January 1, 2025 and added the Alternative Simplified Credit at 3%, or 1.3% with no prior-three-year QREs.

Does New York offer an R&D tax credit for SaaS companies?

New York offers refundable R&D tax credits that a SaaS company can access, but through program participation rather than an as-of-right credit. The Excelsior R&D credit equals 50% of the federal credit attributable to New York research, capped at 6% of New York QREs. A separate Life Sciences credit is fully refundable at 15% or 20%, and indinero handles the certification and timing both programs require.

Can I claim a state R&D credit if I’m only registered in one state?

Yes, if you operate in a single state with an R&D credit program, you can claim that state’s credit on research performed there. Each state credits only the qualified research performed inside its borders, so where your engineers actually work drives which credits you can claim. If your state has no program, indinero still captures the federal Section 41 credit and, for a startup, the payroll offset.

How far back can I amend returns to claim missed state R&D credits?

State amended-return windows for missed R&D credits vary by state, so you must confirm each state’s specific lookback before filing a retroactive claim. The federal income tax credit can generally be amended within the normal refund statute, though the IRS now requires added Section 41 detail for refund claims. The federal payroll offset can’t be claimed on an amended return, only on a timely original, so indinero recommends capturing credits year-round.