Nonrefundable Credit

A nonrefundable tax credit is a fiscal incentive that reduces a taxpayer’s total liability dollar-for-dollar but cannot trigger a refund payment if the credit amount exceeds the tax owed. In the context of Ohio’s Research and Development (R&D) Investment Tax Credit, this mechanism allows businesses to offset their Commercial Activity Tax (CAT) liability, with any excess credit balance carried forward for up to seven years.

Theoretical and Structural Foundation of Nonrefundable Credits

The architecture of the Ohio tax system relies on a fundamental distinction between refundable and nonrefundable credits to manage the state’s fiscal solvency while incentivizing specific economic behaviors. A tax credit, in its most basic form, is an amount subtracted directly from the tax liability, as opposed to a deduction, which merely reduces the taxable income upon which the tax is calculated. When a credit is designated as nonrefundable, it is legally tethered to the existence of a tax liability. This means the utility of the credit is capped at the point where the taxpayer’s liability reaches zero. If a corporation generates $50,000 in R&D credits but only owes $30,000 in Commercial Activity Tax (CAT), the nonrefundable nature of the credit dictates that the first $30,000 eliminates the tax bill, but the remaining $20,000 does not result in a check from the state treasury.

This structural limitation serves as a safeguard for the state’s General Revenue Fund, ensuring that tax incentives only reduce existing tax collections rather than creating new state expenditures in the form of cash refunds. Refundable credits, by contrast, are treated more like overpayments of tax; if the credit exceeds the liability, the state is obligated to pay the difference to the taxpayer. The Ohio R&D Investment Tax Credit, authorized under Section 5751.51 of the Ohio Revised Code (ORC), is purposefully categorized as nonrefundable to align with Ohio’s broader strategy of encouraging established and growing businesses to reinvest their tax savings into further innovation within the state.

To mitigate the potential loss of value for companies in a loss position or those with high R&D spending relative to their revenue, the Ohio legislature included a “carryforward” provision. This allows the taxpayer to “bank” the unused portion of the credit and apply it against future tax liabilities. For the Ohio R&D credit, this window is limited to seven years, meaning the credit must be utilized within seven years of the period in which it was first earned, or it will expire and be permanently lost.

Comparative Mechanics of Ohio Tax Incentives

Credit Category	Financial Impact on Liability	Excess Credit Treatment	Primary Examples in Ohio
Nonrefundable	Reduces tax to zero only	Carried forward or lost	R&D Investment Credit, Jobs Retention Credit
Refundable	Can reduce tax below zero	Issued as a cash refund	Jobs Creation Credit, Motion Picture Credit
Partially Refundable	Varies by statute	Portion refunded/portion lost	American Opportunity Credit (Federal Context)
Non-Transferable	Benefit stays with the earner	Cannot be sold to third parties	Most Ohio Business Credits (unless assigned)

The Legal Framework of the Ohio R&D Investment Tax Credit

The primary legal authority for the research incentive in Ohio is found in ORC Section 5751.51. This statute specifically applies the credit to the Commercial Activity Tax (CAT), which is Ohio’s primary business tax, levied on the privilege of doing business in the state and measured by taxable gross receipts. The credit is designed to reward incremental increases in research spending, meaning it does not apply to a company’s total R&D budget but rather to the growth in that budget compared to a historical baseline.

Statutory Definition of Qualified Research Expenses (QREs)

The Ohio Revised Code explicitly “piggybacks” on federal law for the definition of “qualified research expenses.” According to ORC 5751.51(A), QREs carry the same meaning as they do in Section 41 of the Internal Revenue Code (IRC). This alignment is intended to reduce the administrative burden on taxpayers, allowing them to use the same accounting and documentation for their Ohio CAT return that they utilize for their Federal Form 6765.

The IRC defines QREs through three primary categories of expenditure:

• In-House Wages: This includes the portion of salaries and wages paid to employees who are directly performing research, directly supervising research, or providing direct support for research activities.
• Supplies: This refers to tangible property, other than land or depreciable property, that is consumed or used in the performance of qualified research, such as materials used for prototypes.
• Contract Research: This involves payments made to outside organizations or individuals to conduct research on the taxpayer’s behalf. Typically, only 65% of contract research costs are includable as QREs.

For these expenses to qualify specifically for the Ohio credit, the research activities must be conducted within the state of Ohio. If a company has a centralized R&D lab in Ohio but employs researchers in California, only the Ohio-based expenses are eligible for the 7% Ohio credit.

The Four-Part Test for Research Qualification

To satisfy the requirements of IRC Section 41 and, by extension, ORC 5751.51, the activities must pass the rigorous “Four-Part Test” established by the IRS and enforced by the Ohio Department of Taxation.

1. Permitted Purpose: The research must be intended to develop a new or improved “business component,” which is defined as a product, process, technique, formula, invention, or software intended for sale or use in the taxpayer’s trade or business.
2. Elimination of Uncertainty: The taxpayer must intend to discover information that would eliminate a technological uncertainty concerning the capability, method, or appropriate design for developing or improving the business component.
3. Process of Experimentation: The taxpayer must engage in a systematic process designed to evaluate one or more alternatives to achieve a result where the capability or method is uncertain. This often includes modeling, simulation, or trial-and-error testing.
4. Technological in Nature: The process of experimentation must rely on the “hard sciences,” such as engineering, physics, chemistry, biology, or computer science.

Administrative Guidance from the Ohio Department of Taxation

The Ohio Department of Taxation (ODT) provides extensive guidance through the Ohio Administrative Code (OAC) and Information Releases. The seminal rule for CAT credits is OAC 5703-29-22, which explains the mechanics of claiming nonrefundable credits and the mandatory ordering of those credits.

Filing Procedures and the CAT CS Schedule

To claim the R&D Investment Tax Credit, a taxpayer must file a Commercial Activity Tax Credit Schedule (CAT CS) along with their quarterly or annual CAT return. The CAT CS is the primary mechanism for reporting the detailed calculation of the credit and tracking carryforward balances. The ODT requires that a separate Page 2 of the CAT CS be completed for each individual person or entity within a consolidated or combined taxpayer group that is claiming the credit.

The guidance emphasizes that the R&D credit is calculated on a “person-by-person” basis. In a combined group, each subsidiary must determine its own current-year QREs and its own three-year average base. These individual credits are then aggregated to offset the group’s total CAT liability. This is a critical distinction, as a high-spending subsidiary cannot “subsidize” the low-spending years of another subsidiary to manipulate the incremental nature of the credit.

Mandatory Order of Credits (ORC 5751.98)

Ohio law requires a uniform procedure for calculating tax liability when multiple credits are involved. This is dictated by ORC 5751.98, which ensures that nonrefundable credits are applied in a specific sequence to preserve the taxpayer’s ability to carry forward unused amounts effectively.

Priority Order	Credit Type	Statutory Authority	Refundability
1	Jobs Retention Credit (Nonrefundable portion)	ORC 5751.50(B)	Nonrefundable
2	Qualified Research Expenses Credit	ORC 5751.51	Nonrefundable
3	R&D Loan Payments Credit	ORC 5751.52	Nonrefundable
4	Unused Net Operating Losses Credit	ORC 5751.53	Nonrefundable
5	Motion Picture Production Credit	ORC 5751.54	Refundable
6	Jobs Creation Credit	ORC 5751.50(A)	Refundable

The significance of this order lies in the “consumption” of the credits. Because the R&D credit is second on the list, it is used early in the calculation. If the Jobs Retention Credit (Priority 1) does not fully eliminate the tax due, the R&D credit is applied next. If the liability is still not exhausted, the taxpayer moves to Priority 3, and so on. Refundable credits are always used last because they provide the taxpayer with a cash payment if any tax liability remains after all nonrefundable credits have been exhausted.

Record Retention and Audit Standards

Under ORC 5751.51(D), taxpayers must retain records to substantiate their credit claims for a period of four years from the date the return was filed or the due date of the return, whichever is later. This record-keeping requirement extends to the “base years” as well. Since the credit is calculated using a three-year rolling average, a taxpayer claiming a credit in 2024 must be able to produce documentation for their R&D spending in 2021, 2022, and 2023.

The Tax Commissioner has the authority to audit a “representative sample” of the taxpayer’s expenses to verify the credit amount. While the Commissioner is directed to make a “good faith effort” to reach an agreement with the taxpayer on the audit sample, the ODT maintains the legal right to proceed with an assessment even if no agreement is reached. Recent legislative amendments in House Bill 33 have reinforced this audit authority, giving the Department more explicit justification for rigorous scrutiny of federal IRC 41 compliance, even in cases where the IRS has not challenged the taxpayer’s federal R&D claim.

Calculating the Credit: The Incremental Approach

The Ohio R&D credit is equal to 7% of the excess of current-year Ohio QREs over the average annual Ohio QREs incurred during the three preceding calendar years.

Step-by-Step Calculation Logic

1. Identify Current Year Ohio QREs: Sum all wages, supplies, and 65% of contract research costs incurred in Ohio during the calendar year.
2. Identify Base Period Expenses: Sum the Ohio QREs for each of the three prior calendar years.
3. Calculate the Average: Divide the sum of the base period expenses by three.
4. Determine the Incremental Increase: Subtract the three-year average from the current year Ohio QREs.
5. Apply the Credit Rate: Multiply the incremental increase by 7% (0.07).

If a company is new and has no history of R&D spending in Ohio, the three-year average is considered to be zero. This allows new businesses or companies relocating their R&D operations to Ohio to claim a credit on the full 7% of their initial year’s qualified expenditures.

Mathematical Formulas for the R&D Credit

The calculation is expressed mathematically as follows:

Base Amount = (QRE_n-1 + QRE_n-2 + QRE_n-3) / 3

Ohio R&D Credit = 0.07 × (QRE_current – Base Amount)

Where QRE represents Ohio-specific Qualified Research Expenses and n represents the current tax year.

Practical Application: A Detailed Case Study

To understand how the nonrefundable nature of the credit and the state’s guidance apply in a real-world scenario, consider a hypothetical Ohio-based manufacturing firm, “Nexus Aerospace Components.”

Scenario Data: Research Spending

Year	Ohio QREs (Wages + Supplies + 65% Contract)
2021	$2,000,000
2022	$2,200,000
2023	$2,400,000
2024 (Current)	$3,000,000

Step 1: Calculate the Base Amount

The base amount is the average of the 2021, 2022, and 2023 expenses:

($2,000,000 + $2,200,000 + $2,400,000) / 3 = $2,200,000

Step 2: Calculate the 2024 Generated Credit

The incremental spending is the 2024 QREs minus the base amount:

$3,000,000 – $2,200,000 = $800,000

The credit earned for the 2024 tax year is 7% of that increment:

$800,000 × 0.07 = $56,000

Step 3: Determine CAT Liability and Apply Credit

Assume Nexus Aerospace Components has $25,000,000 in Ohio taxable gross receipts in 2024. For the 2024 tax year, the CAT exclusion amount is $3,000,000.

1. Calculate Taxable Gross Receipts: $25,000,000 – $3,000,000 = $22,000,000.
2. Calculate Gross CAT Liability: $22,000,000 × 0.0026 = $57,200.
3. Apply Nonrefundable Credit:

• The total tax owed is $57,200.
• The available R&D credit is $56,000.
• The credit is applied in full because it does not exceed the liability.
• Net Tax Due: $57,200 – $56,000 = $1,200.

In this scenario, the nonrefundable nature of the credit did not limit its utility because the company had sufficient tax liability to “absorb” the entire credit.

Variation: Low Revenue Scenario

If Nexus Aerospace Components had only $4,000,000 in gross receipts in 2024, the outcome changes significantly:

1. Calculate Taxable Gross Receipts: $4,000,000 – $3,000,000 = $1,000,000.
2. Calculate Gross CAT Liability: $1,000,000 × 0.0026 = $2,600.
3. Apply Nonrefundable Credit:

• The total tax owed is $2,600.
• The available R&D credit is $56,000.
• The credit reduces the tax to $0.
• Excess Credit: $56,000 – $2,600 = $53,400.

Because the credit is nonrefundable, the company receives no cash back for the $53,400 excess. Instead, this amount is carried forward to 2025. If the company still has a carryforward balance after seven years, the remainder will be lost.

Interaction with the R&D Loan Payment Credit (ORC 5751.52)

Taxpayers should not confuse the Investment Tax Credit (based on spending growth) with the R&D Loan Payment Credit (based on loan repayments). While both are nonrefundable, they have distinct rules and applications.

The R&D Loan Payment Credit is available to businesses that have received a loan from the Ohio Director of Development under the R&D Loan Fund (ORC 166.21). This credit allows the borrower to offset their CAT liability by the amount of principal and interest payments made on the loan during the prior year, capped at $150,000 per year.

Key differences between the two credits include:

• Approval: The Loan Payment Credit requires a certificate from the Department of Development; the Investment Tax Credit is “self-claimed” on the tax return.
• Carryforward: The Investment Credit has a strict 7-year carryforward. The Loan Payment Credit has an “unlimited” carryforward period until fully used.
• Applicability: The Loan Payment Credit can be applied against the CAT or the Personal Income Tax (ORC 5747.331), whereas the R&D Investment Tax Credit is primarily a CAT incentive.

Pass-Through Entity Considerations and Ownership Claims

The R&D Investment Tax Credit typically remains at the entity level for Commercial Activity Tax purposes. Because the CAT is a tax on the business entity itself (whether a C-corporation, S-corporation, LLC, or partnership), the PTE calculates and claims the credit to reduce its own CAT liability.

However, for the R&D Loan Payment Credit, Ohio law allows for the credit to flow through to individual owners if they are subject to the personal income tax under ORC 5747.02. In this case, an individual shareholder or partner may claim their “distributive or proportionate share” of the credit on their IT 1040 return. To do this, the individual must attach a copy of the credit certificate and documentation showing their ownership percentage in the entity that earned the credit.

PTE Filing Options (IT 4708 vs. IT 1140)

For pass-through entities choosing to file a composite return (IT 4708) on behalf of their investors, the ODT provides the following guidance:

• Composite Eligibility: A PTE can claim nonrefundable business credits on Schedule E of the IT 4708.
• Proportional Limitation: The credit claimed by the PTE on the IT 4708 is limited to the percentage of investors whose income is included in that specific filing. If only 40% of the owners are on the composite return, the entity can only claim 40% of the available R&D credit on that return.
• IT 1140 Prohibition: Nonrefundable credits cannot be used on the IT 1140 withholding return. The Department will disallow any attempt to use credits to reduce withholding obligations.

Impact of Legislative Changes: House Bill 33 and the 2024-2025 Outlook

The Ohio operating budget for fiscal years 2024-2025 (Am. Sub. HB 33) introduced sweeping changes to the CAT that directly affect how nonrefundable credits are managed.

Elimination of the Annual Minimum Tax (AMT)

Historically, all CAT taxpayers had to pay an Annual Minimum Tax, which ranged from $150 to $2,600 based on their prior year’s gross receipts. Nonrefundable credits were prohibited from offsetting this minimum tax. Starting in 2024, the AMT has been eliminated. This represents a significant benefit for innovation-heavy firms with low revenue, as it allows their R&D credits to reduce their actual tax bill to an absolute zero, whereas previously they would have still been out-of-pocket for the AMT.

Expanded Exclusion Amounts

The increase in the CAT exclusion (from $1 million to $6 million by 2025) means that many companies previously eligible for the R&D credit will no longer have any tax liability to offset.

Context	2023 Rules	2024 Rules	2025+ Rules
Exclusion Amount	$1,000,000	$3,000,000	$6,000,000
Tax Rate on Excess	0.26%	0.26%	0.26%
R&D Credit Utility	Offsets tax above $1M	Offsets tax above $3M	Offsets tax above $6M
Filing Status	Quarterly or Annual	Quarterly Only	Quarterly Only

For a company with $5,000,000 in gross receipts, their CAT liability in 2023 was roughly $10,400. In 2024, it drops to $2,600. In 2025, it drops to $0. For this company, any R&D credits generated in 2025 will be “pushed” into the seven-year carryforward window. Strategic tax planning now requires firms to forecast their revenue growth to ensure they don’t accumulate more credits than they can reasonably expect to use before the seven-year expiration date.

Final Thoughts and Recommendations for Taxpayers

The Ohio R&D Investment Tax Credit is a vital tool for reducing the cost of doing business for innovative firms, but its nonrefundable nature and strict administrative requirements demand meticulous compliance. To maximize the benefit of this incentive, taxpayers should adopt several key practices:

• Rigorous Documentation: Maintain project-level documentation that addresses all four parts of the research test. Do not assume that a federal-level approval will automatically satisfy a state ODT auditor, as state authorities are increasingly focusing on the Ohio-specific nature of the activities.
• Base Period Tracking: Keep detailed records of Ohio QREs for the three years preceding any claim. Because the credit is incremental, the inability to prove base-period spending can lead to the total loss of the credit during an audit.
• Strategic Carryforward Management: Use the CAT CS form to track the age of each credit “vintage.” Since the R&D credit must be used in the order earned, the seven-year clock starts for each year’s credit separately. Taxpayers should prioritize using the oldest credits first to avoid expiration.
• Monitor Threshold Changes: With the CAT exclusion rising to $6 million, mid-sized companies must re-evaluate their tax strategies. A company that no longer owes CAT may want to shift its focus to other incentives, such as the R&D Sales Tax Exemption, which provides an immediate “cash-like” benefit by exempting equipment purchases from sales tax regardless of the company’s CAT liability.

In the final analysis, the Ohio R&D tax credit serves as a robust mechanism for fostering a “pro-growth” environment. While the nonrefundable status limits immediate cash flow for startups and low-revenue firms, the carryforward provisions and the elimination of the AMT create a long-term pathway for innovative businesses to drastically reduce their state tax burden as they scale their operations within the state.