Yes, the R&D Tax Credit Applies to Medical and Dental Practices

The Section 41 research credit is not just for pharmaceutical companies and semiconductor plants. A dental lab designing custom prosthetics, an oral surgery practice refining a novel implant workflow, or a group practice developing a custom EHR integration can all qualify for the R&D tax credit medical practice owners often assume is out of reach. The four-part test in the tax code does not mention lab coats or clean rooms. It rewards technical work aimed at eliminating uncertainty, and clinical practices produce that kind of work more often than they realize.

The credit became more valuable in 2025. Under the One Big Beautiful Bill Act, immediate deductibility of domestic research expenses was restored, reversing the five-year amortization that had made §174 a headache since 2022. For medical and dental practices with even modest R&D activity, the combined effect of the credit plus immediate deduction is meaningful.

The Four-Part Test in Plain Language

Section 41 defines qualified research using four requirements. All four must be met.

First, the activity must have a permitted purpose, meaning it aims to develop or improve a product, process, technique, formula, invention, or software used in the taxpayer’s business. In a clinical setting, that includes a new diagnostic protocol, a modified surgical technique, or software that connects two clinical systems.

Second, the activity must be technological in nature. It has to rely on principles from the physical, biological, engineering, or computer sciences. Medicine and dentistry are biological and physical sciences, so most clinical technical work satisfies this element.

Third, the activity must aim to eliminate technical uncertainty. The physician or the lab must not know at the outset whether the approach will work or which of several approaches is best. Uncertainty is the core of the credit and the element most often missing on the practice side.

Fourth, the activity must proceed through a process of experimentation. That means evaluating alternatives, testing hypotheses, and iterating based on results. It does not have to look like a formal clinical trial.

What Actually Qualifies Inside a Medical or Dental Practice

The credit is broader than most practice owners assume. Qualifying activities in the clinical world commonly include:

• Custom prosthetic and orthotic design in a dental or oral surgery lab, where each case involves iterative fit and function work.
• Development or substantial modification of surgical instruments, guides, or splints.
• Novel treatment protocols that combine existing modalities in new ways, provided the outcome is uncertain and the process is documented.
• Custom software development, including EHR integrations, patient portals, and analytics tools built in-house.
• Process improvements in imaging or lab workflows that use technical principles and aim to improve accuracy, speed, or safety.

Activities that generally do not qualify include routine patient care, ordinary quality improvement, market research, and adopting a vendor’s product as delivered without technical modification.

§174 Under OBBBA: Immediate Deduction Restored

From 2022 through 2024, §174 required domestic research expenses to be amortized over five years rather than deducted currently. That rule reduced the effective benefit of a research effort in the year the work happened and pushed some practices to stop counting R&D activity entirely.

The One Big Beautiful Bill Act reversed that treatment. Domestic research expenses paid or incurred in tax years beginning after December 31, 2024 are immediately deductible again. Foreign research expenses remain on a 15-year amortization schedule. Retroactive relief is also available for domestic R&D investments made between 2022 and 2024, which means some practices can accelerate or amortize those prior-year costs on an amended return or under an elective method.

The interaction with the §41 credit is favorable. Immediate deduction plus the credit means the after-tax cost of qualifying research is meaningfully lower than it was through 2024.

The Payroll Offset for Newer Practices

Practices with less than $5 million in gross receipts and no gross receipts before the past five years can elect to apply up to $500,000 of the research credit against payroll tax rather than income tax. The payroll offset was doubled from $250,000 to $500,000 under the Inflation Reduction Act, and it is the most useful feature of the credit for a young practice that is not yet profitable.

A new dental practice that spent $200,000 on qualifying research activity in its second year of operations could generate a credit in the tens of thousands and apply it against the employer portion of payroll tax on the next several quarterly filings, effectively getting cash back before the practice ever owes federal income tax.

Documentation You Need Before You Claim

The credit requires contemporaneous evidence. That means dated project notes, iteration logs, cost tracking by project, employee time allocated by activity, and a written statement of the technical uncertainty being addressed. Practices that treat R&D activities as ad hoc and undocumented tend to fail on examination even when the work would have qualified.

Cooper Norman advises medical and dental practice owners in Idaho and Utah on practice tax planning, and we have credited the same activities on the manufacturing and construction side for years, including in our earlier post on the R&D credit for construction businesses. If your practice runs a dental lab, develops software in-house, or works on protocols where the outcome is not known in advance, the credit is worth a serious look.

This overview is general information, not tax advice for your specific situation.