Minnesota R&D Credit for Small Businesses

What is the Minnesota R&D credit and who can claim it?

The Minnesota credit for increasing research activities is a credit against Minnesota income or franchise tax for qualified research expenses incurred in Minnesota. The credit is available to corporations, partnerships, S-corporations, estates, trusts, and individuals operating a trade or business in Minnesota. Despite the conventional shorthand of “the small business R&D credit,” Minn. Stat. § 290.068 does not impose a size cap.

The reason the credit gets associated with small businesses is structural, not statutory: the credit’s first tier of 10 percent applies only to the first $2 million of qualifying expense excess, and the refundability election added in 2025 most clearly benefits companies that are not yet generating significant Minnesota tax liability.

The qualifying entity must have Minnesota-source qualified research activities. Research conducted outside Minnesota does not generate Minnesota credit, even if the same research generates a federal credit. That single rule is the most consequential geographic fact about this credit, and it shapes how multistate companies structure where their engineering teams sit. A Delaware C-corp with a Minnesota subsidiary that performs the research can claim the credit on the Minnesota subsidiary’s research expenses; the same C-corp with all engineering in California cannot.

What activities count as “qualified research”?

Minnesota incorporates the federal definition of qualified research from IRC § 41(d) by reference, with one critical Minnesota carve-out: research conducted outside Minnesota does not count. The federal four-part test governs whether an activity is qualified research at all:

1. The expenditures are eligible under IRC § 174A (research and experimental expenditures).
2. The research is undertaken for the purpose of discovering information that is technological in nature.
3. The information’s application is intended to be useful in the development of a new or improved business component of the taxpayer.
4. Substantially all of the activities constitute elements of a process of experimentation.

The fourth element does the most work in practice. Many engineering activities look like research at first glance but fail the process-of-experimentation requirement because they are routine application of known principles, market research, or quality control. The test asks whether the company was actually resolving technical uncertainty through systematic trial, evaluation, and refinement, or whether it was implementing a known solution.

Activities that almost always qualify:

• Developing a new manufactured product.
• Materially improving the performance or reliability of an existing product.
• Designing a new manufacturing process that meaningfully improves yield or speed.
• Developing functional software that solves a previously unsolved problem.
• Prototyping and testing new components.

Activities that almost always do not qualify:

• Market research and consumer surveys.
• Advertising.
• Training.
• Routine quality control.
• Post-launch support.
• Adapting an existing product to a customer’s specifications without underlying technical uncertainty.

How is the credit calculated?

The credit equals 10 percent of the first $2,000,000 of qualified research expenses in excess of the base amount, plus 4 percent of any excess above that $2,000,000 threshold. The two-tier rate is statutory and is the most important arithmetic in the credit. A company with Minnesota qualified research expenses of $3 million over its base amount generates $200,000 from the first tier (10 percent of $2 million) plus $40,000 from the second tier (4 percent of $1 million), for a total credit of $240,000.

The “base amount” is calculated under IRC § 41(c), with Minnesota sales or receipts under Minn. Stat. § 290.191 substituted for the federal aggregate gross receipts. Federal § 41(c) offers two methodologies: a regular base computation that looks at the company’s historical research-intensity ratio, and an Alternative Simplified Credit method built off recent-year qualified research expenses. The base-amount calculation is where the federal-to-Minnesota mechanics get most administrative attention, because the substitution of Minnesota receipts for federal receipts is mechanical and error-prone in practice.

Two operational consequences flow from this. First, a company growing fast in Minnesota will see its base amount grow with its receipts, which can compress the headline credit if research expenses are not growing at the same rate. Second, contract research is counted at 65 percent of the amount paid under § 41(b)(3)(A), so a dollar paid to a Minnesota contractor for qualified research generates 65 cents of qualified research expense, not a full dollar. That haircut is built into the federal rules and carries through to Minnesota.

How does the new refundability election work?

For tax years beginning after December 31, 2024, a Minnesota taxpayer may elect a partial refund of the research credit to the extent the credit exceeds Minnesota tax liability. This was new in 2025, added by H.F. 9 (signed by Governor Walz on June 14, 2025) as new subdivisions 3a, 3b, and 8 of § 290.068. Before this change, the Minnesota credit was strictly nonrefundable: a company without Minnesota tax liability could only carry the credit forward to a future profitable year and use it then.

The mechanic is layered. First, the credit applies against current-year Minnesota tax liability under the ordinary rules. Second, if any current-year credit remains after liability is reduced to zero, the taxpayer can elect to refund a fixed percentage of that remaining credit.

The percentage is set by subdivision 3b: 19.2 percent for tax years beginning in 2025, and 25 percent for tax years beginning in 2026 or 2027. For tax years beginning after December 31, 2027, the commissioner of revenue adjusts the rate annually to keep total statewide refunds at “$25,000,000 or less.” Third, any portion of the excess credit that is not refunded under the election carries forward.

The election is made on a timely filed original return for the year, including extensions, and is irrevocable for that year. The Minnesota Department of Revenue has stated that the refundable amount is calculated after all other credits reduce Minnesota tax liability to zero, and the refund is paid from the general fund under new subdivision 8, which appropriates the necessary funds.

For an early-stage Minnesota company spending heavily on engineering before significant revenue, this changes the credit from a long-tail asset into a partial cash item, which materially affects burn-rate modeling and capital-planning conversations.

The change does not affect the underlying credit calculation. The 10 percent and 4 percent tiers are unchanged. The base-amount methodology is unchanged. What changed is how the value of an excess credit is realized when current-year tax liability is too small to absorb it.

How does the credit work for partnerships and S-corporations?

Pass-through allocation is governed by Minn. Stat. § 290.068, subd. 4, which adopts the federal allocation rules: partnerships allocate the credit under IRC § 41(f)(2), and S-corporations allocate under IRC § 1366(a). In substance, the credit flows through to the partners or shareholders in the same proportions as the underlying pass-through income for the year, subject to the federal restrictions on special allocations.

Three operational points come up repeatedly:

1. The entity does the credit calculation: the partnership or S-corp computes Minnesota qualified research expenses, computes the base amount, and produces a single credit number on the entity’s Minnesota return. The owners do not separately recompute.
2. Ownership-share changes during the year follow the federal rules, which means a partner who came in mid-year does not get a full year of credit allocation.
3. The refundability election is exercised at the level where the tax liability sits. The mechanic for partnerships and S-corps is described in DOR guidance, and the practical result for a typical operating partnership is that owner-level Minnesota individual returns absorb the allocated credit.

Pass-through structuring is often where Minnesota tax decisions intersect. If you are still finalizing how your operating company will be taxed federally, the upstream classification choice is its own decision that affects how the R&D credit flows through. See our discussion of Minnesota LLC tax elections and structure and the Minnesota S-corporation tax rules for the entity-classification analysis. For owners considering whether to make the entity-level Minnesota income-tax election that interacts with the federal SALT cap, see our Minnesota PTE election article; the PTE election does not change R&D credit eligibility, but it changes which return ultimately absorbs the credit.

What documentation does Minnesota require?

Minnesota does not impose its own documentation regime separate from the federal regime. The Department of Revenue’s published guidance follows federal practice and expects contemporaneous documentation of the research activities, the expenses claimed, the people who performed the work, the supplies consumed, and the technical uncertainty being resolved. The DOR has stated that “solely interviewing employees to reconstruct activities believed to qualify for the credit is generally insufficient without additional evidence.” That sentence is the operational touchstone of every Minnesota R&D-credit examination I have seen.

What the DOR expects, in the company’s own files, is the following:

• Contemporaneous project plans or scopes that describe the technical objective.
• Employee timesheets or activity records that allocate hours to qualifying projects.
• Organizational charts showing who reported to whom on each project.
• Supply lists with vendor invoices showing items consumed in research rather than in production.
• Contractor agreements showing the scope of qualifying work and the geographic location of performance.
• Design documents or test records demonstrating the process of experimentation.

The standard the company has to meet is not perfection; it is sufficient evidence of the four-part test for the activities and dollar amounts claimed.

The single biggest cause of Minnesota credit disallowance, in my experience, is reconstructing the credit at year-end from a post-hoc estimate of “what felt like research.” Contemporaneous records produced during the year carry far more weight than reconstructions produced in March of the following year. If the company is going to claim the credit at all, building the documentation into the engineering team’s regular workflow is the single highest-leverage administrative move.

How does the Minnesota credit interact with the federal R&D credit?

The Minnesota credit and the federal credit are independent computations of related credits over a related expense base. The same dollar of qualified research expense can generate both credits because the federal credit is against federal tax and the Minnesota credit is against Minnesota tax. They do not offset each other. They do, however, share most of their definitional architecture, which means a defect in the federal computation usually means a defect in the Minnesota computation.

Three federal-Minnesota differences matter. First, the Minnesota credit excludes research performed outside Minnesota; the federal credit covers research performed anywhere in the United States. A Minnesota company with research performed in Wisconsin gets a federal credit on those expenses but no Minnesota credit. Second, the Minnesota base amount substitutes Minnesota receipts under § 290.191 for the federal aggregate gross receipts, which produces a different base figure than the federal credit, sometimes meaningfully different. Third, the Minnesota credit’s two-tier rate structure (10 percent on the first $2 million of excess; 4 percent on the rest) is a Minnesota construct and has no federal analog.

Companies that elect the federal payroll-tax offset under IRC § 41(h) for qualified small businesses interact with the Minnesota credit only at the level of the underlying research expenses; the Minnesota credit is an income-or-franchise-tax credit, not a payroll-tax credit, and the federal payroll-tax election does not change the Minnesota computation. Companies amending federal returns for prior-year credits should consider whether to amend Minnesota in parallel; if the federal qualified research expenses are restated, the Minnesota expenses will usually need to be restated as well.

What happens to the credit if the business is sold or acquired?

Acquisitions and dispositions are governed by Minn. Stat. § 290.068, subd. 5, which incorporates the federal rules of IRC § 41(f)(3). The general principle is that when a trade or business is acquired, the acquiring company’s qualified research expenses and gross receipts are increased by the amounts attributable to the acquired business, with proportional adjustments in the year of acquisition. The seller’s amounts are correspondingly reduced. The mechanic prevents both windfalls and forfeitures and is procedurally detailed in operation.

In practice, the acquisitions rule shows up most often in three transaction types:

• A Minnesota R&D-active target acquired by a buyer that did not have prior Minnesota research expenses, where the buyer inherits a stream of qualified research history.
• A partial sale of a research operation, where the seller and buyer must coordinate the proportional split of QRE history.
• A structural reorganization, where the credit’s continued availability depends on whether the federal acquisition rules treat the post-reorganization entity as a successor for credit purposes.

If you are planning a Minnesota M&A transaction and the target has a meaningful R&D credit history, due diligence should treat the credit history as a real asset and confirm the federal acquisition mechanics before closing. For broader Minnesota tax-structuring considerations in a sale, see Selling your Minnesota business: tax structuring.

The credit also carries forward in the entity that earned it under § 290.068, subd. 3. Subdivision 3 imposes a current-year liability cap (subject to the new refundability election under subd. 3a for post-2024 years) and provides for a carryforward of unused credit for a period set by the statute. Because carryforward periods can be a forfeiture trap if missed, the operative rule for any company sitting on an accumulated credit balance is straightforward: confirm with your CPA, on every annual return, the remaining carryforward life of each credit-year vintage and the amount expected to be absorbed in the current year.

When the Minnesota R&D credit is worth claiming

For most Minnesota companies that spend meaningfully on engineering, prototyping, software development, or process improvement performed in Minnesota, the credit is worth claiming. The combination of the 10 percent first-tier rate, the new partial refundability for unprofitable years, and the credit’s pass-through mechanics for partnerships and S-corporations makes it a tangible state-level incentive for innovation-active small and mid-sized businesses.

The two failure modes I see most often are companies that do not realize they are doing qualifying research at all (and never claim the credit) and companies that claim the credit on weak documentation and lose it on examination. The first problem is solved by an honest application of the four-part test to the company’s actual technical work. The second is solved by treating documentation as part of the engineering workflow rather than a year-end reconstruction project.

For background on Minnesota tax procedure if a credit claim is ever examined or denied, see Minnesota tax controversy procedure.

If you are evaluating whether the credit is worth pursuing, the threshold conversation is short: identify the Minnesota research dollars, run the base amount, sketch the credit, and decide whether the cash benefit justifies the documentation overhead. For a company spending real money on Minnesota R&D, the answer is almost always yes. For Minnesota tax planning around the R&D credit, contact our Minnesota tax practice.