Short answer. Unused Indiana research expense credit carries forward for 10 years and cannot be carried back. Because the credit is nonrefundable, a company with no Indiana tax banks it on Schedule IT-20REC and applies it once tax is owed. The credit chapter has no sunset, so new credit can keep joining the balance.
Key facts
| Carryforward | 10 years |
|---|---|
| Carryback | None |
| Refundable | No |
| Refund option | None |
| Form | Schedule IT-20REC |
| Sunset | None (Ind. Code 6-3.1-4) |
How the carryforward works
Indiana credit you cannot use this year moves ahead, one year at a time, for up to 10 years.
Indiana's research expense credit under Ind. Code 6-3.1-4 is nonrefundable. It reduces Indiana tax, and when the tax is smaller than the credit, the difference carries forward for up to 10 years. It never carries back, so it cannot reach tax paid before the credit was earned.
The credit is computed one of two ways. The standard method is 15 percent of the first $1 million of the increase in Indiana QRE over the base, and 10 percent of the increase above that. The alternative method is 10 percent of Indiana QRE above 50 percent of the prior three-year average, or 5 percent of current Indiana QRE if the company had none in any of those three years. Either way, the result lands on Schedule IT-20REC, and so does the carryforward.
What happens to older credits
Each year's credit has its own 10-year life.
A company that earns credit every year ends up holding several layers, each with its own expiry date. Tracking each year's amount and how much of it has been used matters, because a layer not used within its 10 years is gone. The chapter that creates the credit has no sunset date, so a steady research budget keeps adding new layers behind the old ones.
A nonrefundable credit
Excess credit gets its value through the carryforward.
Indiana does not refund the research expense credit. A pre-profit company's choice is simple: file the schedule each year, keep the balance accurate, and apply it when Indiana tax arrives.
An illustrative example
Round numbers for a hypothetical Indiana SaaS company using the alternative method.
- The credit. Indiana QRE this year is $800,000, and the prior three-year average is $500,000. Half of that average is $250,000. QRE above that line is $550,000, and 10 percent of it is a $55,000 credit.
- Years 1 through 3. The company owes no Indiana tax. The $55,000 carries forward untouched.
- Year 4. Indiana tax is $20,000. The credit covers it, leaving $35,000.
- Year 5. Tax is $35,000 or more, and the rest of the credit is used, well inside the 10-year limit.
Why the records matter years later
The credit may be used long after the research that earned it.
In the example, the credit earned in Year 1 is not fully used until Year 5. By then the engineers who did the work may have moved on and the project may have been rewritten. The claim still depends on showing that the Year 1 research qualified and that the Indiana wages and costs behind it were real. R&D Binder produces the federal Section 41 documentation that the Indiana credit rests on, built from commit history and payroll at the time the work happened. Your CPA files the Indiana return, and whether your facts qualify is your CPA's call.
More on Indiana's R&D credit
The full state overview, the federal Section 41 work it builds on, and related state guides:
Sources
Every claim on this page traces to a primary authority. Each source below is independent and verifiable.
- Indiana Code Title 6, Article 3.1, Chapter 4 (research expense credit) - Indiana General Assembly
- Indiana Schedule IT-20REC, Research Expense Credit (State Form 49184) - Indiana Department of Revenue
- Indiana Department of Revenue, Research Expense Credit handbook - Indiana Department of Revenue
- Hull & Knarr, Indiana R&D tax credit - Hull & Knarr LLP
Get documentation built to survive an exam
R&D Binder produces the federal Section 41 binder and the Indiana state workpaper from one engagement, both built to survive an exam.