1. Research Expense Tax Credit (REC)
  2. Indiana Code $\S 6-3.1-4$
  3. Indiana Code $\S 6-3.1-4-1$ (Definitions)
  4. Indiana Code $\S 6-3.1-4-2$ (Amount of Credit; Computation)
  5. Indiana Code $\S 6-3.1-4-2.5$ (Alternative Computation for Aerospace)
  6. Indiana Qualified Research Expense (IQRE)
  7. Qualified Research Expense (QRE)
  8. IRC $\S 41$ (Internal Revenue Code Section 41)
  9. IRC $\S 41(b)$ (Definition of QRE)
  10. IRC $\S 41(c)$ (Base Amount Definition)
  11. IRC $\S 41(d)$ (Definition of Qualified Research)
  12. Base Amount (for REC)
  13. Fixed Base Percentage (for IQRE)
  14. Average Annual Gross Receipts (4 Prior Years)
  15. Gross Receipts Attributable to Indiana
  16. Taxpayer (IC $\S 6-3.1-4-1$)
  17. Pass-Through Entity (PTE)
  18. Adjusted Gross Income Tax (IC $\S 6-3$)
  19. Indiana Department of Revenue (DOR)
  20. Schedule IN-EDGE-R (Research Expense Credit Form)
  21. Schedule IN K-1 (Pass-Through Credit)
  22. Tiered Credit Rate (15% and 10%)
  23. $1 Million Threshold (for Tiered Rate)
  24. Alternative Incremental Credit (AIC)
  25. AIC 10% Rate (for Average QREs)
  26. AIC 5% Rate (for Limited QRE History)
  27. Average IQRE (3 preceding taxable years)
  28. Carryforward Period (10 Years)
  29. Nonrefundable Credit
  30. Research Conducted in Indiana
  31. Wages for Qualified Services (in Indiana)
  32. Cost of Supplies (in Indiana)
  33. Contract Research Expenses (65% in Indiana)
  34. Substantially All (Process of Experimentation)
  35. Exclusion: Government-Funded Research
  36. Exclusion: Research Outside Indiana
  37. Research and Development Sales Tax Exemption
  38. Research and Development Equipment (Sales Tax)
  39. Research and Development Property (Sales Tax)
  40. Ind. Code $\S 6-2.5-5-40$ (Sales Tax Exemption)
  41. Internal Use Software Guidelines (DOR)
  42. Funded Research Exclusions (DOR)
  43. Disclosure of Reasons for Not Claiming the Federal Credit
  44. $50\%$ of Average IQRE (AIC Calculation)
  45. Aerospace Contractor (Alternative Calculation)
  46. United States Department of Defense Contractor
  47. IC $\S 6-3-2-29$ (R&D Expense Decoupling)
  48. Full Deductibility of R&D Expenses (State)
  49. IRC $\S 174$ (Amortization Decoupling)
  50. Grantor Trust (Beneficiary Eligibility)