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Tennessee
R&D Tax Credits

The California Research & Development (R&D) Tax Credit allows businesses to offset state income or franchise tax for qualified research conducted in California.

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Key Highlights

  • 15% credit on incremental qualified research expenses (QREs)
  • 24% credit for qualified basic research payments
  • 33% of credit can be applied to the 1.5% S-Corp entity tax (3.5% for financial S-Corps)
  • Credits are nonrefundable but carry forward indefinitely
  • Refund election available under 2025 provisions (Form FTB 3870)
  • Applies only to research performed within California
  • Available to C corps, S corps, partnerships, and LLCs
  • Cannot reduce the $800 minimum franchise tax, California AMT, or built-in gains tax

Who Qualifies

Credits are available to businesses performing qualified research activities in California. Eligibility depends on entity type and the nature of your activities and expenses.

Eligible Entities
  • C Corporation May claim both the regular and basic research credit
  • S Corporation Limited entity-level use; can pass credits to shareholders
  • Partnerships / LLCs Credits pass through to owners via Schedule K-1
Qualified Research Expenses (QREs)
Category
Examples
Wages
Employees directly performing, supervising, or supporting qualified research
Supplies
Items consumed in research (materials, prototypes)
Contract Research
65% of payments to third parties; 75% to research consortia
Computer Rentals
Computers used directly in qualified research

How to Calculate the California R&D Tax Credit

Regular Method
  • Determine total California QREs for the year.
  • Compute base amount = fixed-base % × average CA gross receipts for prior 4 years.
  • Base cannot be less than 50% of current-year QREs.
  • Credit = 15% of QREs above the base.
  • Corporations may also claim the 24% basic research credit.
Example Calculation
QREs = $1,000,000
Base = $600,000
→ Credit = 15% × ($1,000,000 – $600,000)
= $60,000
Add basic research: 24% × $10,000 = $2,400
Total Credit = $62,400
Alternative Incremental Credit (AIC)

The AIC method is useful for businesses whose qualified research expenses fluctuate year to year. It allows the credit to be calculated in tiers based on QREs as a percentage of gross receipts.

1.0% < QREs ≤ 1.5%

The AIC method is useful for businesses whose qualified research expenses fluctuate year to year. It allows the credit to be calculated in tiers based on QREs as a percentage of gross receipts.

1.49%

1.5% < QREs ≤ 2.0%

1.98% of the portion of QREs between 1.5% and 2.0% of gross receipts

1.49%

QREs > 2.0%

2.48% of the portion above 2.0% of gross receipts

1.49%

Important: Once elected, the AIC method must continue in future years unless revoked with FTB consent.

Gross Receipts for Base Calculation
  • Include only sales of tangible or intangible property delivered to California customers
  • Exclude throwback sales, services, rents, leases, interest, royalties, and licenses
  • If no California gross receipts exist, use 50% of current-year QREs as the base

California-Specific Rules

California applies unique R&D credit provisions for startups and S corporations that differ from both federal and other state rules.

Startup Fixed-Base Percentage

Startups in California use a 3% fixed-base percentage for their first five credit years, gradually phasing up through year ten.

The first year with California gross receipts begins this timeline.

Key Details:
  • Capped at 10% (unlike federal 16%)
  • Based only on California gross receipts
  • Federal data should not be used to compute the state credit
S Corporation Credit Rules

California S corporations have special limitations on how they can apply and pass through R&D credits.

  • May use one-third of the credit against the 1.5% entity-level franchise tax (3.5% for financial S corporations)
  • May pass 100% of the credit to shareholders via Schedule K-1
  • Refund election not available at the entity level (Form FTB 3870 cannot be used by S corps)
  • Credits cannot offset built-in gains tax
2025 Cap & Refund Election
Annual Credit Usage Cap (2024–2026)
  • $5 million maximum per year for all business credits combined
  • Cap applies at the combined group level
Refund Election (Form FTB 3870)

If unused credits exceed the cap, businesses may recover them through a refund election.

  • 20% Annual Offset: Receive 20% of the disallowed credit each year
  • Timing: Payments start in the third taxable year after election
  • Duration: Continue for five consecutive years
  • Filing: Must be filed with the original, timely filed return
  • Irrevocable: Once made, the election cannot be changed

California R&D Tax Credit Case Study

Real results from a California technology company

$231,000
total state R&D tax credits earned
50%
of wages qualified for credits
$588,000
total R&D tax credits earned (federal + state combined)
Frequent Asked Questions

If I didn’t amortize my expenses on my 2022 tax return - what should I do?

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Companies should work with their CPA to determine what the best estimated quarterly tax payment amount will be. If there’s no urgency to file this spring, a company should consider extending if possible—in the hopes that these changes are repealed in full or part. As CPAs wait for more guidance from the Treasury, taxpayers can still amend their 2020 and 2021 tax returns to generate unclaimed credits and potential cash refunds from prior years. And companies should look to see when they filed their 2019 tax return as the statute to amend and claim prior year refunds is three years from the filing date (2019 tax return filed in 2020). 

The R&D tax credits do expire if they’re unclaimed before statutes expire. It may be beneficial to roll the federal and state credits forward to be used to offset future income tax liabilities that may arise from the changes to Section 174 amortization. 

Why did Section 174 expenses change in 2022?

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The Tax Cuts and Jobs Act (TCJA), passed in December of 2017, amended Section 174 to require capitalization and amortization of all research and experimental (R&E) costs incurred in the tax years beginning after December 31, 2021 (2022 tax year for calendar filers). Dating back to 1954, taxpayers could deduct their expenses in the same year they were incurred on their tax returns. 

Despite the bipartisan support, and numerous bills and acts introduced to repeal or defer the amortization requirements to provide taxpayer relief in the short term, it is unclear whether a legislative fix will be signed into law anytime soon. The TCJA’s stated purpose was to be an economic incentive to bring jobs back to the U.S. Companies that have never had to separate their section 174 expenses from regular expenses will face a new challenge with the recent change.

Can I claim expenses as Section 162 instead of Section 174?

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Previously, CPAs and taxpayers never had to determine whether or not the businesses expenses were Section 162 or Section 174 because all expenses were fully deductible on a tax return. However, many taxpayers businesses do fall under the Section 174 requirements and will need to amortize their research expenses on their tax returns accordingly. 

Taxpayers that have already claimed the R&D tax credit and are electing to forgo the 2022 R&D tax credit to instead fully deduct research expenses as Section 162 expenses (general business expense), should speak to a CPA and closely review your options. We anticipate the IRS will have a way to identify qualified Section 174 industries and taxpayers that are not amortizing their research expenditures. If you have previously claimed the R&D tax credit, suddenly claiming expenses under Section 162 (general business expense) will raise a red flag with the IRS. Research and development companies don’t generally stop doing R&D. R&D expenses should be claimed under Section 174.

How does Section 174 work with the R&D credit (Section 41)?

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In order to understand the impact of this legislation, it’s crucial to understand the relationship between Section 174 Expenses and Section 41 Expenses. Section 174 Expenses are known as Research and Experimentation, or R&E Expenses. The expenses that fall under Sec. 174 can be divided into two categories, based on how essential each is to the activity being performed. Section 174 expenses encompass both direct and indirect research expenses (onshore and offshore) but are not necessarily eligible for the tax credit.  

Section 41 Expenses are known as Research and Development, or R&D Expenses. These are known as “Direct Research Expenses,” and are what usually come to mind when you imagine research and development.  Section 41 expenses is a subset of Section 174 expenses, focusing only on direct research expenses that qualify for the R&D Tax Credit. 

While the R&D tax credit calculations, including the definition of QREs, are not changing, Section 41 expenses will no longer be deductible on businesses tax returns in the year they are incurred. By default, Section 41 expenses are classified as a Section 174 expense. The new Section 174 rules require companies claiming R&D credits to capitalize and amortize their expenses on their tax return—potentially increasing their tax bill and reducing their anticipated cash flow. As a result, the calculation of Section 41 should be the starting point in determining the potentially qualifying Section 174 expenditures and should be done concurrently.

Will Section 174 only affect software companies?

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Section 174 will affect any industry and company that performs research but the software industry will likely take the biggest hit. The TCJA specifically called out software development expenses incurred in the tax years starting after December 31, 2021, as no longer tax deductible under Rev. Proc. 2000-50. Instead, these costs must be classified as Section 174 expenses and amortized as such. 

Therefore, any software development company that previously deducted its onshore and offshore software development related expenses will now have to capitalize and amortize these costs over five years, for domestic expenses, and fifteen years, for international expenses. Software businesses that retire, dispose, or abandon a software development related project will no longer be able to fully amortize the remaining capitalized costs.

Next Steps

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Official Resources

Franchise Tax Board — Research Credit Overview
Eligibility, calculation methods, and filing guidance.
Form FTB 3523 & Instructions
California research credit form and instructions.
Form FTB 3870 — Refund Election
How to elect refund treatment under the cap.
Cal. Rev. & Tax. Code §23609
Statutory framework for the CA research credit.

Tennessee
R&D Tax Credits

Connect with us to find out how R&D tax credits can boost your organization’s bottom line.

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This post was last updated on Aug 15, 2025.

Tennessee R&D Tax Credit

Discover the benefits of Tennessee state credits and see how your business could qualify.

Unfortunately, Tennessee does not provide a research and development credit.  You could still be eligible for the Federal R&D Credit - Check out our calculator below to estimate your potential benefit.

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Tennessee R&D Tax Credit Eligibility Summary:

Is the R&D Tax Credit Available?:
Yes
No
Eligible Entities:
Deadline for Tax Filing:
Data Required to Compute Credit:
What Information is needed?:

Tennessee R&D Tax Credit Guidelines:

Tennessee R&D Tax Credit Case Study

A Tennessee-based company recovered thousands in R&D tax credits to refuel growth.

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Total state R&D tax credits earned

%

Amount of wages qualified for tax credits

$

Total R&D tax credit earned

Key Tennessee R&D Tax Credits R&D Tax Rules Changes

2019' - 22
22' and after
2019' - 22
22' and after

Resources

There are many other considerations and exemptions, including what documentation the IRS requires for the R&D tax credits. Stay updated to navigate the new tax laws with confidence.

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Connect with us to find out how R&D Tax Credits can boost your organization’s performance.

Ready to Maximize Your State Credits?

With just a little info, our Strike Experts can help you start your R&D tax credit journey.

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To get an estimate of the potential value of your unclaimed R&D Tax Credits, try out our credit calculator.

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Download our R&D Tax Credit Calculator for Android to see how much you can receive from your qualified R&D tax credit expenses.

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Frequent Asked Questions

Does Tennessee offer an R&D tax credit for businesses?

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Tennessee does not offer a state-specific R&D tax credit, but businesses can claim the federal R&D tax credit for qualified research expenses incurred in Tennessee. Contact Strike Tax to maximize your savings.

What qualifies as R&D activity for the federal credit in Tennessee?

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Qualifying activities must be technological, aimed at developing or improving a business component, eliminate uncertainty, and involve experimentation. Examples include product innovation or process improvements in industries like manufacturing or tech. Strike Tax can identify qualifying projects.

Can startups in Tennessee claim R&D tax credits?

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Yes, startups can claim the federal R&D credit, including a payroll tax offset of up to $500,000 annually for up to five years if gross receipts are under $5 million and no receipts for more than five years. Strike Tax can guide eligibility.

How do I document R&D expenses for a federal credit in Tennessee?

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Maintain contemporaneous records such as project descriptions, time tracking, wage allocations, supply costs, and contract research agreements. For 2025, Form 6765 requires detailed business component information in Section G for claims over certain thresholds. Strike Tax ensures audit-ready documentation.

What is the process to claim federal R&D tax credits in Tennessee?

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Attach Form 6765 to your federal tax return. In Tennessee, report the federal credit on your state return if it impacts state taxes, though no income tax applies but excise tax may be affected. Strike Tax streamlines the process.

What are the 2025 changes to R&D tax credits in Tennessee?

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No state-specific changes, but federally, the OBBB Act restores immediate expensing for U.S. R&D under Section 174, and Form 6765 mandates Section G for business component details on most claims. Strike Tax can help navigate these updates.