1. Research and Experimental Expenditures Credit (RC Credit)
  2. Research and Development Expenditures Credit (RDC Credit)
  3. Connecticut Department of Revenue Services (DRS)
  4. Connecticut General Statutes (C.G.S.) $\S 12-217j$
  5. Connecticut General Statutes (C.G.S.) $\S 12-217n$
  6. Qualified Small Business (QSB) (for RDC)
  7. Qualified Small Business (QSB) (for Refund Exchange)
  8. Corporation Business Tax
  9. Incremental Credit (RC)
  10. Non-Incremental Credit (RDC)
  11. Prior Year’s Expenditures (RC Base)
  12. Base Period Expenditures
  13. Excess Qualified Research Expenses (QREs)
  14. Research and Experimental Expenditures
  15. Research and Development Expenses
  16. IRC $\S 174$ (Reference)
  17. IRC $\S 41$ (Reference)
  18. Basic Research Payments
  19. Research Conducted in Connecticut
  20. Funded Research Exclusion (Connecticut)
  21. Tentative Tax Credit Amount (RDC)
  22. Tentative Tax Credit Rate Schedule (RDC Tiered)
  23. 6% Credit Rate (QSB-RDC)
  24. $1\%$ Credit Rate (RDC Tier 1)
  25. Maximum Credit Allowed (Percentage of Tax Liability)
  26. 70% Tax Liability Limit (Effective 2023+)
  27. Unused Credit Carryforward
  28. Carryforward Period (15 Years)
  29. Form CT-1120RC
  30. Form CT-1120 RDC
  31. Form CT-1120 XCH
  32. Application for Exchange of Tax Credit for Refund
  33. Exchange of Credit for Refund (QSB)
  34. Refund Percentage (65% of Credit Value)
  35. Refund Cap ($\$1,500,000$ Annual)
  36. Qualified Small Biotechnology Company (Refund Percentage)
  37. Exchange Eligibility (Zero/Negative Apportioned Net Income)
  38. Capital Base Tax ($\$250$ Minimum)
  39. Corporate Gross Income Test ($\$100$ Million QSB)
  40. Corporate Gross Income Test ($\$70$ Million QSB Refund)
  41. Related Person (Gross Income Test)
  42. Enterprise Zone (EZ)
  43. Enterprise Zone Headquartered Company (3.5% Rate)
  44. Department of Economic and Community Development (DECD)
  45. Workforce Reduction (Credit Reduction)
  46. Combined Return (Combined Group)
  47. Accumulated Credits (C.G.S. $\S 12-217aaa$)
  48. Capital Projects (for Accumulated Credit Utilization)
  49. Taxable Year / Income Year