The Comprehensive Framework of Michigan’s Flow-Through Entity R&D Credit: An Analysis of MCL § 206.716 and Related Guidance

MCL § 206.716 provides the statutory definitions and eligibility criteria for Michigan’s research and development tax credit as applied to flow-through entities, serving as the definitional gateway for innovative businesses to access entity-level relief. This provision allows authorized flow-through employers to claim a refundable credit against state withholding taxes, incentivizing in-state technical experimentation while maintaining a distinct separation from member-level tax liabilities.

The Legislative Evolution of Research Incentives in Michigan

The reintroduction of the research and development (R&D) tax credit in Michigan marks a pivotal shift in the state’s economic strategy, representing a formal return to incentivizing innovation through the tax code after a decade-long hiatus. Historically, Michigan offered R&D incentives under the Single Business Tax (SBT) and the subsequent Michigan Business Tax (MBT), but these were largely eliminated with the transition to the Corporate Income Tax (CIT) in 2012.1 The current framework, established through Public Acts 186 and 187 of 2024 and signed into law on January 13, 2025, reflects a bipartisan consensus that state-level support is necessary to maintain industrial leadership in the 21st century.3

The new system is integrated into the Income Tax Act of 1967 but bifurcates the credit based on the taxpayer’s structure. While standard corporations claim the credit under Section 677 of the Act, flow-through entities (FTEs)—including S corporations, partnerships, and limited liability companies—look to MCL § 206.716 and Section 717 for their governing rules.3 This structural distinction is vital for practitioners to understand, as the R&D credit for FTEs does not follow the traditional “pass-through” model where credits are allocated to members; instead, it remains at the entity level as a credit against withholding requirements.7

The enactment of this legislation was driven by a need to address the “brain drain” and ensure that Michigan remains a competitive hub for emerging technologies such as autonomous vehicles, semiconductor manufacturing, and advanced biotechnology.9 By providing a refundable mechanism, the state ensures that even early-stage startups that have not yet reached profitability can receive immediate cash infusions to support their technical staff and lab supplies.11

Statutory Definitions and the Role of MCL § 206.716

MCL § 206.716 functions as the primary source of definitions for the R&D credit program, ensuring uniformity across both corporate and flow-through claimants. While legislative indexes sometimes note the repeal of older versions of this section, the current statutory landscape uses Section 716 to anchor the terminology used in Section 717 and beyond.5 The effectiveness of a claim hinges entirely on meeting the precise definitions laid out in this provision.

The Authorized Business

An “authorized business” is the only entity type permitted to claim the R&D credit. Under MCL § 206.716, for a flow-through entity to qualify, it must be subject to the withholding requirements of the state and must demonstrate an increase in its qualifying R&D expenses relative to a defined base amount.3 This definition excludes certain entities that might otherwise appear to qualify:

• Disregarded entities (such as single-member LLCs) are not treated as separate flow-through entities for this purpose.7
• Entities taxed as corporations for federal purposes must claim the credit under the CIT provisions rather than the FTE withholding provisions.7
• Publicly traded partnerships (as defined under IRC 7704) and financial institutions are generally excluded from the FTE-specific credit mechanics.16

Qualifying Research and Development Expenses

The Michigan credit adopts the federal definition of “qualified research expenses” (QREs) as found in Section 41(b) of the Internal Revenue Code (IRC).3 However, Michigan imposes a strict geographic limitation: only research conducted physically within the state of Michigan qualifies.7 This means that a Michigan-based firm employing remote researchers in other states cannot include those out-of-state wages in the calculation of the Michigan credit, even if they are eligible for the federal credit.7

The Base Amount Calculation

The “base amount” is the benchmark against which current-year innovation is measured. MCL § 206.716 defines this as the average annual amount of qualifying research and development expenses incurred during the three calendar years immediately preceding the calendar year for which the credit is claimed.3

A unique aspect of the Michigan base amount is that it must be computed on a calendar-year basis for all taxpayers, regardless of their fiscal year-end.2 This ensures that when the Department of Treasury evaluates the statewide cap, all businesses are compared across the same temporal period. For entities with fewer than three years of history, the average is calculated based on the available years of existence; for those with no prior research history, the base amount is zero.3

The FTE Credit Mechanism: A Departure from Pass-Through Norms

Standard flow-through entity taxation is predicated on the idea that the entity itself is not a taxpayer; rather, income and credits flow to the members. However, the Michigan R&D tax credit established by PA 187 of 2024 and defined via MCL § 206.716 deliberately breaks this mold. The credit is an entity-level incentive intended to reduce the “employer’s” liability for withholding tax.3

The Prohibition on Member-Level Claims

One of the most critical guidance points issued by the Michigan Department of Treasury is that a member of a flow-through entity that submits a claim for an R&D credit is strictly prohibited from claiming any portion of that credit on their individual or corporate return.5 This is a fundamental difference from the Flow-Through Entity Tax (the SALT cap workaround) where the tax paid by the entity generates a refundable credit for the members.25

This “entity-retention” model serves several administrative purposes:

1. Cap Management: Since the total statewide credit is capped at $100 million and subject to proration, tracking proration percentages across thousands of individual partner returns would be an administrative impossibility for the Treasury.2
2. Immediate Liquidity: By allowing the entity to claim the credit against withholding, the business receives the cash benefit faster than if it were to wait for members to file their annual returns and then pass the value back to the company.12
3. Simplicity for Non-Resident Members: This structure eliminates the need for non-resident members to file Michigan returns solely to claim a share of a research credit.26

The Withholding Reduction Option

Flow-through entities that are “authorized businesses” may use the R&D credit to reduce their periodic withholding payments.2 Once the Department of Treasury issues its “tentative claim adjustment notice”—which confirms the entity’s share of the statewide cap—the entity can begin to offset its ongoing withholding remittances by the approved credit amount.2 This effectively provides the business with an immediate increase in operating cash flow during the tax year.

However, the Treasury warns that this is a “claim at your own risk” provision. If the entity’s final R&D credit calculation on its annual return results in a lower credit than what was used to offset withholding, the entity will be liable for penalties and interest on the underpaid withholding taxes.2

Quantitative Analysis of the Credit Structure

The Michigan R&D credit is structured as a tiered system that provides higher marginal rates for small businesses, reflecting the state’s desire to nurture its entrepreneurial ecosystem. The primary variable in this calculation is the number of employees, which the state defines using the federal standards under IRC § 3401(c).7

Tiered Credit Rates

Source: 1

The 15% incremental rate for small businesses is significantly more generous than the federal Alternative Simplified Credit (ASC), which typically offers a 14% rate on expenses exceeding 50% of the three-year average.18 This high marginal rate is designed to reward businesses that are rapidly scaling their Michigan-based research operations.

The University Collaboration Bonus

To stimulate public-private partnerships, MCL § 206.716 and Section 717 provide for an additional 5% bonus credit.3 This bonus applies to the portion of the QREs incurred in collaboration with a Michigan research university—defined as a public university under the State Constitution or an independent nonprofit college or university within the state.6 This additional credit is capped at $200,000 per year and requires the taxpayer to maintain a copy of the written agreement with the university for audit purposes.3

Administrative Compliance: The Tentative Claim Process

The most significant hurdle for flow-through entities seeking the R&D credit is the mandatory “tentative claim” requirement. Unlike most Michigan tax credits, which are simply calculated on the annual return, the R&D credit requires an advance application filed through Michigan Treasury Online (MTO).7

Filing Deadlines and the MTO Ecosystem

The Treasury has established a rigid timeline for these filings to ensure they can manage the $100 million statewide cap. For the first year of the credit (expenses incurred in 2025), the tentative claim must be filed by April 1, 2026.3 For all subsequent years, the deadline moves to March 15.3

The MTO portal is the exclusive venue for these claims. Taxpayers must enter their actual (not estimated) Michigan research expenses, their employee count, and details of any university collaborations.4 If a business fails to file this tentative claim by the deadline, they are statutorily barred from claiming the credit for that year.7

Proration and the Statewide Cap Management

Because the total amount of available credits is fixed at $100 million, the Treasury must perform a statewide reconciliation after the tentative claim deadline. If the total requested credits exceed $100 million, the Treasury will issue a “Proration Notice” by April 30.2

Source: 2

This proration mechanism introduces a layer of uncertainty for tax planning. A business might calculate a potential credit of $100,000, but if the statewide demand is twice the cap, they may only be authorized to claim $50,000 on their final return.27

Interplay with Federal Decoupling: IRC Section 174 Amortization

One of the primary drivers for the R&D credit’s popularity is Michigan’s decision to decouple from recent federal changes to the treatment of research expenses. Under the federal Tax Cuts and Jobs Act of 2017, businesses were required to capitalize and amortize research expenses over five years starting in 2022. While the federal “One Big Beautiful Bill Act” (OBBBA) restored immediate expensing for federal purposes in 2025, Michigan enacted HB 4961 to maintain mandatory amortization for state purposes.11

This decoupling creates a “timing difference” that effectively increases Michigan taxable income in the short term. For an FTE, this means higher withholding requirements or higher member-level tax liabilities.11 The refundable R&D credit provided under MCL § 206.716 acts as a critical liquidity bridge, providing a direct cash benefit that offsets the negative impact of having to amortize expenses rather than deducting them immediately.11

Local State Revenue Office Guidance and Audit Preparedness

The Michigan Department of Treasury has released several notices providing guidance on the application of MCL § 206.716. These notices emphasize that while the Michigan credit looks to IRC § 41 for the definition of “qualified research,” it does not necessarily follow all federal concepts or regulations.2

Substantiation Requirements

The Treasury has made it clear that “detailed and accurate documentation” is essential for a successful claim.4 Because the credit is refundable, it is considered a high-priority item for audit review. Flow-through entities are advised to maintain:

• Project descriptions outlining the “technical uncertainty” and the “process of experimentation” involved.11
• Detailed payroll records tying specific hours of work to Michigan-based R&D projects.4
• Contract agreements showing that research performed by third parties was conducted in Michigan and that the taxpayer retained the rights to the results.4
• Invoices for supplies used specifically in the R&D process, separate from general business supplies.11

Unitary Business Group (UBG) Considerations

For flow-through entities that are part of a Unitary Business Group, the guidance is specific: the UBG is considered the taxpayer for CIT purposes, but the FTE members of the group must still manage their credits through the withholding mechanism if they are not subject to the CIT themselves.7 If multiple entities within a group are claiming the credit, the employee count and base amount calculations are generally aggregated at the group level to determine if the $2 million or $250,000 caps have been met.2

Practical Example: The “Precision Engineering” Case Study

Precision Engineering LLC is a Michigan-based flow-through entity specializing in advanced automotive components. The entity has 45 employees and is a calendar-year taxpayer. It has been conducting research in Grand Rapids for several years.

Step 1: Base Amount Establishment

The firm reviews its Michigan-only R&D wages and supplies for the prior three years:

• 2022: $400,000
• 2023: $450,000
• 2024: $500,000

The average (Base Amount) is $450,000.3

Step 2: Current Year Research Activity

In 2025, Precision Engineering expands its team and incurs $800,000 in Michigan QREs. Of this, $50,000 was paid to Michigan State University for a collaborative testing project.

Step 3: Tentative Credit Calculation

As a small business (< 250 employees), the firm applies the following rates:

1. Baseline Credit: 3% of the first $450,000 = $13,500.
2. Incremental Credit: 15% of the excess ($350,000) = $52,500.
3. University Bonus: 5% of the $50,000 collaboration = $2,500.

Total Tentative Credit = $68,500.1

Step 4: Administrative Compliance

The firm files its tentative claim via MTO on March 10, 2026. After receiving the Treasury’s adjustment notice (which confirms no proration was necessary for small businesses), the firm claims the $68,500 on its 2026 withholding return. If its total withholding liability for the year was only $50,000, it receives an $18,500 refund check from the state.3

Economic Outlook and Fiscal Statistics

The fiscal impact of the R&D credit is a significant component of Michigan’s budgetary planning. Revenue estimates from the Consensus Revenue Estimating Conference (CREC) suggest that while business tax collections have remained stable, the $100 million annual reduction from the R&D credit will be concentrated in the General Fund.6

Michigan Revenue Context (Estimated FY 2024-25)

Source: 34

The $100 million cap on the R&D credit represents approximately 6% of the state’s total net business tax collections, illustrating the program’s substantial scale.6 By focusing on flow-through entities, the state is targeting the segment of the economy most likely to drive job growth in high-tech sectors.

Strategic Implications for Flow-Through Entities

For innovative companies in Michigan, MCL § 206.716 is more than a tax provision; it is a strategic asset. The ability to receive a refundable credit against withholding provides a direct subsidy for high-wage technical talent, effectively lowering the cost of doing business in Michigan relative to states without such credits.4

Key Strategic Takeaways:

• Nexus is Essential: Companies must ensure that their R&D activities are documented as taking place within Michigan borders to survive Treasury audits.7
• The 250 Threshold: Mid-sized firms approaching 250 employees must be aware of the “cliff” where the incremental credit rate drops from 15% to 10%. Proactive workforce planning may be necessary to maximize the credit.2
• University Partnerships: The 5% bonus and the additional $200,000 cap make academic collaborations highly lucrative. Beyond the tax benefit, these partnerships provide access to world-class lab facilities and talent pools.1
• MTO Vigilance: The transition to an application-based credit system means that tax departments must coordinate with payroll and R&D departments much earlier in the year than they do for federal tax purposes.4

Conclusion

The interaction of MCL § 206.716 with the Michigan R&D tax credit creates a unique and powerful mechanism for flow-through entities to subsidize their innovative efforts. By utilizing a withholding-based, entity-level credit, Michigan has provided a streamlined path for innovative firms to access capital without the complexities of member-level allocations. While the $100 million statewide cap and the mandatory tentative claim process require significant administrative diligence, the potential for high incremental rates—up to 15% for small businesses—positions Michigan as a premier destination for technical development. As the state continues to decouple from federal amortization requirements, this credit will serve as the cornerstone of Michigan’s efforts to build a resilient, innovation-driven economy.

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