State Program

Connecticut Research and Experimental Expenditures Credit

Two complementary credits: an incremental credit on increased research spending and a non-incremental credit on total research expenses.

Program Overview

Connecticut offers both an incremental research credit and a non-incremental credit computed on qualifying research and development expenditures. The non-incremental credit uses a graduated rate scale that increases with spending, reaching a top tier for the largest research programs. Qualified small businesses may exchange unused credits with the state for a cash refund at a discounted rate, subject to applicable requirements. This exchange provision may provide a cash benefit to eligible businesses that cannot immediately use the credits against their Connecticut tax liability.

Eligibility

  • C corporations subject to Connecticut corporation business tax may qualify.
  • Qualifying research expenses must be incurred for research conducted in Connecticut.
  • The program includes eligibility for both incremental and non-incremental research credits, subject to the applicable requirements for each credit.
  • The credit exchange is limited to qualified small businesses that meet applicable gross-income thresholds.

Benefits

  • Reduces Connecticut corporation business tax liability.
  • Qualified small businesses may exchange unused credits for a cash refund equal to 65% of the credit value, subject to applicable requirements.
  • The program provides both an incremental credit based on increased research spending and a non-incremental credit based on qualifying research expenditures.

Schedule a Teleconference

A scoping conversation clarifies exposure, open IDRs, and whether readiness or active defense is the priority.