Are R&D Tax Credits Available in Connecticut?
The state of Connecticut provides the Research and Development (R&D) Tax Credit which allows C corporations to claim both incremental AND non-incremental Research and Development Tax Credit for R&D expenses paid or incurred by the corporation within the state. The definition of qualified research expenses for both credits is expenses that may be deducted under IRC § 174 and basic research payments defined under IRC § 41.
Here is a summary of the two credits:
Incremental R&D Credit
- The tax credit is equal to 20% of the incremental increase in R&D expenses that are conducted in Connecticut.
- Depending on the tax year, the credit can reduce up to 70% of the corporate business tax liability.
- This tax credit may be carried forward for up to 15 years.
- Partially refundable for taxpayers whose gross income does not exceed $70 million AND have no tax liability.
Non-incremental R&D Credit
- A qualified small business can claim a tax credit equal to up to 6% of the current year's R&D expenses, dependent on gross receipts.
- For tax years beginning on or after January 1, 2021, any unused credits can be carried forward up to 15 years. Prior years can carry forward for an unlimited period of time.
- Depending on the tax year, the credit can reduce up to 70% of the corporate business tax liability.
- Partially refundable for taxpayers whose gross income does not exceed $70 million AND have no tax liability.
Connecticut R&D Tax Credit Case Study
A Stanford company designs and manufactures components for the aerospace industry. The company claims R&D credits each year for the development activities of its engineers. This project involved a multi-year study.
The Company qualified for the federal R&D Tax Credit of $327,833 and an additional $184,000 for the state R&D Tax Credit in Connecticut.
FEDERAL
|
CONNECTICUT
|
|||||
Year
|
Total QREs
|
Credit
|
Total QREs
|
Credit
|
||
2021
|
$1,300,000
|
$135,333
|
$1,300,000
|
$72,000
|
||
2020
|
$900,000
|
$91,000
|
$900,000
|
$52,000
|
||
2019
|
$650,000
|
$63,000
|
$650,000
|
$36,000
|
||
2018
|
$450,000
|
$38,500
|
$450,000
|
$24,000
|
||
Total | $3,300,000 | $327,833 | $3,300,000 | $184,000 |
You can read more about this Connecticut case study here.
Four-Part Test
Qualified research activities are defined by the four-part test outlined below
Technological in Nature
Activities must fundamentally rely on the principles of physical or biological science, engineering, or computer science.Permitted Purpose
Activities must be performed in an attempt to improve the functionality, performance, reliability, or quality of a new or existing business component.Eliminate Uncertainty
Activities intended to discover information that could eliminate technical uncertainty concerning the development or improvement of a product.Experimentation
All activities must include a process of experimentation including testing, modeling, simulating, and systematic trial and error.Research and Development Tax Insights

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