Indiana Research and Development Tax Credit Opportunity

The Indiana research and development tax credit gives qualifying businesses 15% back on their first $1 million in qualified research expenses, with 10% on amounts exceeding $1 million. This state-level incentive stacks with federal benefits, meaning manufacturers, software companies, medical device makers, and other innovators conducting research in Indiana can reclaim serious money they’ve already spent.

Key Takeaways

• Dual benefit structure: Indiana offers both a research expense credit (15%/10% tiered rate) and a 100% sales tax exemption on R&D equipment purchases
• Recent federal boost: The One Big Beautiful Bill Act restored immediate R&D expensing and 100% bonus depreciation starting 2025, making the combined federal and state credits more valuable than ever
• Indiana-specific requirement: Research activities must physically occur within Indiana borders to qualify for the state credit
• Extended benefit window: Unused credits carry forward for 10 years, giving businesses flexibility to offset future tax liability
• Professional documentation essential: Specialized R&D tax credit firms understand complex IRS regulations and Indiana Department of Revenue requirements that general accountants often miss

What Makes Indiana’s R&D Credit Different From Federal Programs

Walk into most accounting offices and ask about R&D tax credits, you’ll hear about the federal program. That’s fine, but it misses half the picture for Indiana companies.

The federal credit follows IRC Section 41 rules. Indiana does too, but with a twist. Your research must happen on Indiana soil. The Indiana Department of Revenue doesn’t care if your corporate headquarters sits in Delaware or your parent company operates in California. What matters is where the actual research work gets done.

Think about it this way: If your engineers in Fort Wayne develop a new manufacturing process, that qualifies. If your Indianapolis software team builds a new application, that qualifies. If you contract with Purdue researchers for lab work in West Lafayette, that qualifies. But if you pay for research conducted at your Texas facility, Indiana won’t give you a dime.

This geographic requirement creates paperwork. You’ll need to prove where work happened, where employees performed services, where you used supplies and materials. The Indiana Department of Revenue wants locations, not vague descriptions.

Indiana’s Tiered Credit Calculation Explained

Here’s where Indiana gets interesting. The state uses a two-tier structure that rewards both small and large research investments.

The Standard Method

For qualified research expenses up to $1 million above your base amount, Indiana gives you 15% back. Cross that million-dollar threshold and the rate drops to 10% for everything beyond. This structure mirrors how people actually invest in R&D – smaller companies benefit proportionally more, while larger operations still get substantial credits on bigger spend.

Your base amount comes from the same federal calculation under IRC Section 41(c). It considers your fixed-base percentage multiplied by your average annual gross receipts for the four preceding years. New companies without history use a different formula, typically resulting in a lower base amount.

The Alternative Simplified Calculation

Indiana adopted the Alternative Simplified Credit method starting in 2010. This option works better for some businesses, particularly those without three full years of prior R&D spending.

The alternative method gives you 10% of the amount by which your current year’s Indiana QREs exceed 50% of the average of your previous three years’ Indiana QREs. If you lack expenses in all three prior years, the credit drops to 5% of your current year’s total qualified research expenses.

You pick one method per year. Most businesses run both calculations and claim whichever produces the larger credit. A specialized R&D tax credit professional will model both scenarios to maximize your benefit.

Credit Calculation Method	Who Benefits Most	Rate Structure	Documentation Required
Regular Method	Established companies with consistent R&D history	15% up to $1M over base; 10% above $1M	4 years gross receipts, base period calculation
Alternative Simplified Credit	Growing companies, startups, businesses with variable R&D spend	10% of excess over 50% of 3-year average; 5% if no prior history	3 years QRE history (or explanation of absence)

Qualifying Research Under Indiana’s Rules

Indiana piggybacks on the federal four-part test from IRC Section 41(d)(1). Your research must meet all four criteria:

Technological in nature: The work relies on engineering, physical sciences, biological sciences, or computer science principles. Marketing studies don’t count. Customer surveys don’t count. Your team needs to apply hard science to solve problems.

Qualified purpose: You’re creating new functionality or improving performance, reliability, or quality of a business component. A business component is any product, process, computer software, technique, formula, or invention you’ll sell, lease, license, or use in your operations.

Technical uncertainty: At the start of your project, the information available didn’t establish how to achieve your desired result. You faced real questions about capability, methodology, or appropriate design. This uncertainty separates true R&D from routine application of existing knowledge.

Process of experimentation: You evaluated alternatives through systematic trial and error, modeling, simulation, or testing. This process aimed to eliminate the technical uncertainty. Documentation of your experiments, iterations, and design changes becomes your audit defense.

What Doesn’t Qualify

Indiana follows federal exclusions. Research funded by grants doesn’t qualify. Work conducted outside the United States doesn’t qualify. Surveys and studies don’t qualify. Research after commercial production starts typically doesn’t qualify, unless you’re making significant improvements.

Here’s the catch most people miss: internal-use software has higher hurdles. Software you develop primarily for your own operations must meet an additional three-prong “high threshold of innovation” test. Recent guidance from the Indiana Department of Revenue in November 2025 clarified when this extra test applies and what exceptions exist.

Indiana’s Qualified Research Expenses Breakdown

Three expense categories generate credits:

1. Wages paid to employees performing, supervising, or directly supporting qualified research conducted in Indiana. This includes salaries, wages, bonuses paid to scientists, engineers, technicians, and support staff working on qualifying projects. Part-time allocation is acceptable when employees split time between qualifying and non-qualifying activities.
2. Supply costs consumed or expended during the research process. Raw materials, prototypes, testing materials all count. Capital equipment doesn’t qualify as supplies, but there’s good news on that front through the sales tax exemption.
3. Contract research expenses paid to third parties for qualified research performed on your behalf in Indiana. You claim 65% of payments made to unrelated contractors. Payments to related parties under common control follow different rules with tighter restrictions.

Cloud computing costs for software development now qualify under recent interpretations. So do certain API development expenses, software testing costs, and quality assurance activities.

How Recent Federal Tax Law Changes Supercharge Indiana Credits

July 4, 2025 changed everything for R&D-intensive businesses. President Trump signed the One Big Beautiful Bill Act into law, and two provisions dramatically improved the math on innovation investments.

Immediate R&D Expensing Returns

From 2022 through 2024, businesses suffered under Section 174 capitalization requirements. You had to amortize domestic R&D expenses over five years instead of deducting them immediately. That killed cash flow for innovative companies.

The One Big Beautiful Bill Act repealed that nightmare. Starting in tax year 2025, domestic R&D expenses are fully deductible in the year incurred. Small businesses under $31 million in annual gross receipts can even file amended returns for 2022-2024 to claim retroactive refunds.

For Indiana companies, this means your state R&D credit and your federal R&D credit now work in the same year your federal deduction hits. The triple benefit – federal deduction, federal credit, and Indiana credit – all align again.

100% Bonus Depreciation Restored

Bonus depreciation was phasing down to 40% for 2025. The One Big Beautiful Bill Act permanently restored 100% bonus depreciation for qualified property acquired and placed in service after January 19, 2025.

This matters for Indiana manufacturers investing in new equipment. You can fully expense qualifying assets in year one, then also claim the Indiana sales tax exemption on R&D equipment purchases. The combination creates immediate tax benefits that improve cash position for capital-intensive innovation.

Key Insight from the Field

“Many companies miss thousands in credits because they don’t recognize that process improvements and efficiency gains qualify as R&D. If your team spent time solving technical problems that weren’t certain at the outset, you likely have qualifying activities. The new permanent federal expensing rules make documentation more important than ever, since both your deduction and your credit now hit in the same year.”

The Sales Tax Exemption Nobody Talks About

While everyone focuses on the research expense credit, Indiana offers a second powerful incentive that often delivers bigger immediate savings: a 100% sales tax exemption for qualified R&D equipment and property.

This exemption covers tangible personal property purchased for experimental or laboratory R&D purposes. That includes equipment for developing new products, finding new uses for existing products, or improving and testing current products. The property must be new to Indiana – previously used equipment doesn’t qualify.

Here’s the elegant part: you can claim this exemption at purchase time or file for a refund later. Buy a $500,000 piece of testing equipment? Save $35,000 in sales tax immediately. Forget to claim the exemption at purchase? File a timely refund claim with the Indiana Department of Revenue.

Manufacturers upgrading production lines, medical device companies buying testing equipment, software firms purchasing servers for development environments – all can access this exemption. The seven-percent sales tax savings on major equipment purchases adds real money back to your innovation budget.

Form IT-20REC and the Filing Process

Claiming the Indiana research and development tax credit requires filing Form IT-20REC with your annual state income tax return. Corporations attach it to Form IT-20. S corporations and partnerships file it with Form IT-20S or IT-20P and must distribute pro-rata shares to owners via Schedule IN K-1.

You must also attach a copy of your federal Form 6765 (Credit for Increasing Research Activities). Indiana’s credit calculation starts with federal qualified research expenses, then applies Indiana-specific adjustments.

The form requires detailed disclosure:

• Places in Indiana where qualifying services were performed
• Indiana locations where personnel performed R&D work
• Indiana locations where you used qualified research supplies
• Any other relevant factors showing research occurred in Indiana

Vague answers slow processing. Specific addresses, facility names, and employee locations speed approval. Multi-state taxpayers need extra documentation showing how they allocated expenses between Indiana and other jurisdictions.

The Credit Carryforward Advantage

Indiana’s R&D credit is non-refundable. You can’t get cash back if the credit exceeds your tax liability. But you’re not losing value – unused credits carry forward for 10 years.

This carryforward period gives profitable companies flexibility and provides startups time to grow into their credits. A new medical device company might generate $200,000 in credits during development years with minimal tax liability. Those credits bank for future years when the device launches and profits arrive.

Current-year credits must offset current-year liability before carryforward credits apply. If you have 2018 carryforward credits and new 2025 credits, you use the 2025 credits first.

Industries Thriving With Indiana R&D Credits

Indiana’s economy runs on innovation. Understanding which sectors benefit most helps you recognize your own qualifying activities.

• Medical device manufacturing: Warsaw owns the title “Orthopedic Capital of the World” with 39.5% of the global orthopedic market. Northeast Indiana medical device companies generate over $19 billion annually, conducting constant R&D on implants, surgical tools, and patient care equipment.
• Automotive and manufacturing: Indiana hosts the nation’s second-largest automotive industry, directly employing 128,800+ workers. Manufacturing comprises 27.84% of state output. Process improvements, lean manufacturing implementation, and equipment automation all generate qualifying expenses.
• Life sciences and biotechnology: The Indiana University School of Medicine and Indiana Biosciences Research Institute drive pharmaceutical development, medical research, and healthcare delivery innovations. Lab work, clinical testing, and drug formulation create substantial qualifying expenses.
• Software and technology: Indianapolis leads a tech transformation across the Midwest. Custom software development, AI implementation, cybersecurity solutions, and SaaS platforms all qualify when they meet the four-part test.
• Agriculture and food processing: Indiana’s $16 billion agricultural sector uses precision farming, agrobots for small produce picking, biotechnology, and food safety systems. Test kitchen activities, ingredient experimentation, shelf-life testing, and lean manufacturing in food production qualify.

Specialized Credits for Aerospace Contractors

Indiana created a special alternative credit for aerospace manufacturers. Companies primarily engaged in civil and military jet propulsion systems, certified by the Indiana Economic Development Corporation as aerospace advanced manufacturers, with at least 3,000 full-time Indiana employees earning 400%+ of minimum wage can elect a different calculation.

This aerospace alternative provides a credit equal to 14% of current year QREs exceeding 50% of the average of the previous three years’ QREs. If you lacked expenses in prior years, the credit is 6% of current year QREs. This election applies to all future years unless revoked with Department consent.

Why General Accountants Miss Qualifying Activities

Your regular CPA does great work on tax compliance, financial statements, and general business advice. But R&D tax credits require specialized knowledge most accounting firms don’t maintain.

The problem isn’t competence. It’s focus. R&D tax credit rules span 200+ pages of IRS regulations, dozens of court cases, and constantly evolving guidance. The Indiana Department of Revenue’s research expense credit handbook alone runs multiple chapters explaining nuances most accountants never encounter.

I’ve seen manufacturers lose six-figure credits because their accountant didn’t recognize that resolving production uncertainties qualified. Software companies left money on the table because they thought only formal R&D departments counted. Food processors missed credits on recipe development and shelf-life testing.

Specialized R&D tax credit firms employ engineers, scientists, and former IRS agents who understand technical processes. They conduct interviews with your development teams, review project documentation, and identify qualifying activities your regular accountant would categorize as “normal business operations.”

Aspect	General CPA Approach	Specialized R&D Tax Firm
Activity Identification	Relies on client to identify qualifying work	Conducts technical interviews with engineering and development teams
Documentation Support	Minimal – often just Form 6765 and basic schedules	Comprehensive study report with project descriptions, expense allocation, four-part test analysis
Calculation Methods	Usually defaults to one method	Models regular and alternative methods, picks optimal approach
Audit Defense	Limited support, may refer to outside specialist	Full audit representation, expert testimony if needed
Industry Knowledge	General business understanding	Deep sector expertise (manufacturing, software, medical devices, etc.)

Real-World Credit Examples

An Indianapolis-based life sciences company with 85 employees claimed zero R&D credits for years. Their accounting firm thought only big pharmaceutical companies qualified. An R&D specialist identified $1.8 million in qualifying expenses across lab testing, process development, and quality control improvements. Result: $127,000 in combined federal and Indiana credits, plus ability to amend three prior years.

A Fort Wayne manufacturer invested $4.2 million in developing automated assembly line improvements and new metal alloy testing procedures. Their Indiana credit alone returned $437,000 ($1M × 15% + $3.2M × 10%), while the federal credit and new 100% bonus depreciation on equipment added over $800,000 in total tax benefits.

Taking Action on Your Indiana R&D Credits

You already spent the money. Your engineers solved problems, your developers wrote code, your technicians ran tests. The research happened. Now you need documentation that survives scrutiny.

Start by identifying projects that involved technical uncertainty. Which development efforts required your team to experiment with different approaches? Where did you face questions about capability, methodology, or design? Those projects likely qualify.

Gather supporting documents: project plans, meeting notes, test results, design iterations, engineering drawings, source code repositories, budget reports showing labor allocation. The more contemporaneous documentation, the stronger your position during examination.

Don’t go it alone. The combined complexity of IRC Section 41, Indiana Code 6-3.1-4, recent federal law changes, and evolving IRS examination tactics creates landmines for DIY filers. Engaging a specialized R&D tax credit firm before filing maximizes your credit, ensures compliance, and builds audit-ready documentation from the start.

The Indiana research and development tax credit rewards innovation you’re already doing. The question isn’t whether you can afford professional help claiming it. The question is whether you can afford to leave hundreds of thousands on the table.

Conclusion

The Indiana research and development tax credit isn’t a gift. It’s a strategic partnership between the state and innovative businesses. You invest in solving technical problems, developing better products, and improving processes. Indiana reduces your tax burden to fund more innovation.

With recent federal changes restoring immediate R&D expensing and 100% bonus depreciation, 2025 marks the best time in years to document and claim these credits. The combined federal and state benefits, sales tax exemptions, and favorable carryforward rules create real financial advantages for Indiana companies committed to innovation. Don’t let complexity or unfamiliarity cost you money you’ve already earned through hard work and smart investment in your business’s future.

Indiana Research and Development Tax Credit FAQs

R&D Tax Credits by State

Citations

• Indiana Department of Revenue. Indiana Research Expense Credit Updated as of February 2023
• Indiana Department of Revenue. DOR: Research Expense Credit
• Indiana Economic Development Corporation. Research Expense Credits
• Swanson Reed. Indiana and the Research and Development (R&D) Tax Credit
• KBKG. KBKG Tax Insight: One Big Beautiful Bill – 2025 Tax Changes and Summary Chart
• Tax Foundation. FAQ: The One Big Beautiful Bill Act Tax Changes
• Dykema. Landmark Tax Legislation of the One Big Beautiful Bill Act: What It Means for You
• Bloomberg Tax. Indiana DOR Issues Guidance on R&D Tax Credit for Internal-Use Software