Skip to content

Insights

Practical guidance from KatzAbosch advisors on tax, audit, accounting, and business advisory—written for the decisions leaders face next.

R&D Tax Credit for Construction Contractors: Do You Qualify?

Jake Debus Business Tax, Tax

Summary:

  • Many construction firms may qualify for the R&D tax credit without realizing it. The credit is available when contractors face technical uncertainty and use engineering analysis, testing, modeling, redesign, or evaluation of alternative solutions to solve project challenges, not simply because a project is large, expensive, or difficult.
  • Qualifying activities often occur on complex construction projects. Examples include BIM coordination, unusual site or soil conditions, custom structural or MEP solutions, prefabrication, energy-efficiency improvements, performance testing, value engineering, and developing new installation or construction methods. Activities like engineering calculations, mock-ups, simulations, trial assemblies, and technical redesigns may support a claim.
  • Documentation and contract terms are key. Routine construction, project management, code compliance, and standard methods generally do not qualify. Eligibility depends on the specific technical work performed, contractual responsibilities, and financial risk assumed. Supporting documentation often already exists in project files, such as design revisions, BIM models, testing results, RFIs, engineering evaluations, and payroll records.

 

Many contractors assume the federal Research & Development (R&D) tax credit is limited to software developers, manufacturers, or laboratory-based businesses. In reality, qualifying activities often occur on construction projects when contractors must overcome technical challenges through engineering analysis, testing, design modifications, or evaluation of alternative solutions. 

The R&D credit is not based on whether a project was large, expensive, or simply difficult to complete. Rather, it focuses on situations where a company faced technical uncertainty and worked through a process to determine the best solution. As a result, many general contractors, specialty trades, fabricators, design-build firms, engineers, and architects may be performing potentially qualifying activities without realizing it. 

Which construction projects may qualify for the R&D tax credit? 

Potential opportunities are often found in construction projects involving: 

  • Unusual soil, foundation, or geotechnical conditions. 
  • Building Information Modeling (BIM) coordination and clash detection requiring redesign. 
  • Custom structural steel, framing, or support systems. 
  • Complex mechanical, electrical, and plumbing (MEP) coordination in hospitals, laboratories, data centers, and occupied facilities. 
  • Curtain wall, waterproofing, or building-envelope performance testing. 
  • Prefabrication or modular construction techniques. 
  • Temporary shoring, bracing, or support systems. 
  • Energy-efficiency improvements that exceed standard code requirements. 
  • Development of new installation, sequencing, fabrication, or construction methods. 
  • Technical value-engineering initiatives that require analysis, modeling, testing, or redesign. 

Many contractors encounter these types of challenges regularly. When a project requires developing and evaluating alternative solutions to address technical issues, it may warrant a closer R&D credit review. 

R&D tax credit qualifying activities for contractors 

Construction companies may have R&D credit opportunities when their teams perform activities such as: 

  • Developing a new or improved installation, fabrication, sequencing, or construction method. 
  • Evaluating alternative structural, mechanical, electrical, plumbing, energy, or building-envelope solutions. 
  • Resolving unusual site, soil, access, load, moisture, vibration, temperature, or constructability constraints. 
  • Performing engineering calculations, modeling, simulations, mock-ups, trial assemblies, or field testing before selecting a final approach. 
  • Redesigning or reconfiguring a system after initial testing does not achieve the desired performance. 
  • Developing custom solutions for complex coordination issues, unique owner requirements, or nonstandard building conditions. 
  • Performing technically substantive value engineering that improves performance, reliability, quality, or functionality rather than simply reducing cost. 
  • Designing custom fabrication methods or assemblies to meet project-specific requirements. 
  • Troubleshooting system performance issues and making technical modifications to achieve required results. 

What doesn’t qualify for the construction R&D tax credit? 

Not every challenging construction activity supports an R&D credit. Examples of activities that generally do not qualify for the R&D credit on their own include: 

  • Routine construction performed from completed plans and specifications. 
  • Ordinary project management and scheduling activities. 
  • Standard code-compliance efforts. 
  • Conventional means and methods that involve little or no technical uncertainty. 
  • Purely aesthetic design changes. 
  • Simple product substitutions that do not require technical analysis or testing. 

Likewise, routine RFIs, change orders, inspections, punch-list work, and standard commissioning activities generally do not qualify by themselves. However, they may help document a larger technical challenge and the efforts undertaken to resolve it. 

How contract terms affect R&D tax credit eligibility 

Even when technical activities appear promising, contract terms can influence whether a contractor may be eligible to claim the credit. 

Part of the analysis may involve determining whether the contractor assumed financial risk related to the technical work and how responsibility for developing the solution was allocated under the contract. While fixed-price contracts often present favorable facts, contract type alone does not determine eligibility. 

Each project should be evaluated based on its specific facts, technical activities, and contractual responsibilities. 

What documentation supports an R&D tax credit claim? 

One of the biggest misconceptions about the R&D credit is that companies need a separate research department or formal research records. In many cases, the documentation needed for an R&D study is already embedded within a contractor’s project files, such as: 

  • Design revisions and engineering calculations. 
  • BIM models and coordination documentation. 
  • Technical RFIs and responses. 
  • Testing, mock-up, and trial-installation results. 
  • Failure analyses and corrective redesign documentation. 
  • Project correspondence discussing alternatives considered. 
  • Meeting notes and engineering evaluations. 
  • Payroll and labor records for personnel directly involved in the technical work. 
  • Contracts, amendments, and change-order provisions. 

The key is identifying construction projects where technical uncertainty existed and documenting the process used to evaluate and develop a solution. 

Next steps: Evaluate your R&D tax credit opportunity 

Many contractors dismiss the R&D credit because they are not inventing new products or developing proprietary technology. However, qualifying activities often arise when project teams solve unique technical problems, develop custom methods, test alternatives, or redesign systems to achieve required performance objectives. 

If your company regularly encounters challenging site conditions, performs sophisticated BIM coordination, develops custom fabrication techniques, conducts mock-ups or performance testing, or performs technical value engineering, it may be worth exploring whether R&D tax credits are available. 

A focused assessment can often identify projects that warrant further analysis. Our Construction services team can help evaluate opportunities, review contract provisions, identify qualified costs, and determine whether an R&D credit study could benefit your business. The result may be a valuable tax incentive hidden within work your team is already performing every day. Reach out to us today for a deeper analysis.