What Qualifies and What Does Not
The R&D tax credit for professional services is often misunderstood. Many engineering firms, technology consultants, software developers, architects, and specialty consulting firms perform technical work every day, but that does not mean every client project qualifies for the credit.
Eligibility depends on the activities performed within a project, the technical uncertainties the team faced, the alternatives evaluated, and the expenses connected to that work. The firm’s industry classification or job titles are not enough by themselves.
A professional services firm may have qualifying activities buried inside a much larger engagement. An engineering project may include eligible design testing as well as routine drafting. A software implementation may involve qualifying architecture development along with standard configuration and data migration. An architect may evaluate several technical building-envelope systems while also completing aesthetic and administrative work that does not qualify.
The analysis needs to separate those activities instead of treating an entire project as either qualified or nonqualified.
Research and Development Tax Credit Eligibility Is Based on the Work
The federal research credit generally applies to qualified research performed in the United States. The research must be connected to a business component, which may be a product, process, computer program, technique, formula, or invention that the firm uses in its business or develops for sale, lease, or license.
For a professional services firm, the business component may be:
- A new engineering design or technical process
- A software platform, application, integration, or algorithm
- A building system or technical architectural solution
- A proprietary modeling or analytical process
- A new method for delivering a technical service
- An improved internal production process that meets the applicable requirements
The fact that work was difficult, expensive, or highly specialized does not automatically make it qualified research. The project needs to satisfy the federal four-part test, and that test generally must be applied separately to each business component.
The Four-Part Test for R&D Tax Credit Eligibility
1. The Work Must Address Technical Uncertainty
At the beginning of the project, the firm must face uncertainty about the capability, method, or appropriate design of the business component.
The question is not whether the final answer was unknown to the client. The uncertainty must be technical from the firm’s perspective.
For example, an engineering team may know that a structure can be built but remain uncertain about which combination of materials, dimensions, or load-management methods will satisfy the required performance standards. A software team may know that an integration is theoretically possible but remain uncertain about the architecture needed to achieve the required speed, security, or scalability.
Routine work performed using an established method usually does not satisfy this requirement.
2. The Research Must Be Technological in Nature
The firm must rely on principles of engineering, computer science, physical science, or biological science.
Professional judgment alone is not enough. Market research, management strategy, financial analysis, legal interpretation, aesthetic preferences, and social science research generally do not satisfy the technological requirement.
An architect’s visual design work, for example, may be creative and valuable without being technological research. The analysis could change when the architect or engineering team is testing building-envelope performance, energy efficiency, acoustics, structural behavior, or the integration of complex building systems.
3. The Work Must Have a Permitted Purpose
The research must be intended to develop or improve the function, performance, reliability, or quality of the business component.
Research performed only to make something look different or to customize an existing solution without resolving technical uncertainty generally does not qualify.
The improvement does not need to be new to the entire industry. It can be new or improved from the firm’s perspective. However, the firm should be able to explain what technical capability or performance measure it was trying to improve.
4. The Firm Must Use a Process of Experimentation
The team must evaluate alternatives through a process designed to resolve the technical uncertainty. Depending on the work, that process could include:
- Modeling and simulation
- Prototyping
- Iterative software development
- Load, stress, performance, or security testing
- Evaluation of alternative materials or system configurations
- Systematic trial and error
- Testing different algorithms, architectures, or integration methods
- Documenting failed approaches and making technical revisions
A project does not need to end successfully. Failed experiments may still support the credit when the firm can show that it evaluated alternatives through a qualified process of experimentation.
A project is harder to support when the documentation shows only the final solution and gives no indication of what was uncertain, which alternatives were considered, or how the team reached its conclusion.
R&D Tax Credit for Engineering Firms
The R&D tax credit for engineering firms can apply when engineers are developing or improving technical designs and working through uncertainty about how the required result can be achieved.
Potentially qualifying activities may include:
- Evaluating alternative structural systems, materials, or load-bearing designs
- Developing a process that improves energy efficiency or system performance
- Testing alternative mechanical, electrical, or environmental-control systems
- Using modeling or simulation to evaluate technical performance
- Developing new manufacturing, construction, or production processes
- Creating prototypes or pilot designs
- Addressing technical constraints involving safety, reliability, durability, or performance
Not every hour billed to an engineering engagement qualifies. Routine drafting, standard calculations, code lookups, permit preparation, inspections, and the application of established design methods generally require a separate analysis.
A project should not be included merely because a licensed engineer worked on it. The firm must identify the particular technical uncertainty and experimentation involved.
The same distinction applies to architecture firms. Technical evaluation of building systems, acoustics, energy performance, structural integration, or building-envelope performance may qualify when the four-part test is met. Floor-plan revisions based on client preference, aesthetic changes, routine site adaptation, and ordinary construction documentation generally do not qualify by themselves.
R&D Credit for Technology Consultants and Software Developers
The R&D credit for technology consultants may apply when a firm develops or improves software, algorithms, system architecture, technical integrations, or other technology while resolving genuine technical uncertainty.
Potentially qualifying activities may include:
- Developing a new software application or platform
- Creating or improving algorithms
- Designing architecture to address scalability, speed, security, or reliability
- Developing technically uncertain integrations between systems
- Testing alternative development frameworks or database structures
- Improving processing capacity, response time, or system performance
- Building and testing prototypes or minimum viable products
- Resolving uncertainty involving interoperability or data synchronization
Routine coding does not automatically qualify. Installing commercially available software, configuring standard settings, migrating data using an established process, correcting ordinary bugs, updating content, or making cosmetic interface changes generally does not satisfy the four-part test by itself.
Internal-use software requires additional attention. Software developed primarily for financial management, human resources, or other general administrative functions may be subject to a higher standard. The business may need to show that the software was innovative, involved significant economic risk, and was not commercially available for its intended purpose without substantial qualifying modifications.
Software developed for sale, licensing, or customer interaction may follow different rules. Firms should identify the intended use of each system before including the related costs in the credit calculation.
R&D Tax Credit for Consulting Firms
The R&D tax credit for consulting firms is most relevant when the consulting engagement includes technological development rather than business advice alone.
An IT consulting firm, technical design firm, systems consultant, or specialty engineering consultant may perform eligible work. A management, accounting, legal, marketing, or human resources consulting engagement usually will not qualify unless a distinct part of the engagement involves qualified technological research.
For example, developing a proprietary forecasting platform may require qualified software experimentation. Preparing a financial forecast using established software would not normally qualify. Developing a technically uncertain automated process may be eligible, while documenting and improving an administrative workflow usually is not.
R&D tax credit eligibility for consultants therefore needs to be evaluated project by project. A broad percentage applied to every consulting employee or every client engagement is difficult to defend.
Activities That May Qualify Versus Routine Client Work
| Potentially qualifying activity | Activity that generally does not qualify by itself |
| Testing alternative engineering designs to resolve uncertainty about performance | Preparing a standard design using an established process |
| Developing a new software architecture or algorithm | Installing or configuring commercially available software |
| Testing prototypes, models, or alternative materials | Producing routine drawings or client deliverables |
| Resolving uncertainty involving scalability, security, or system integration | Performing ordinary troubleshooting or maintenance |
| Developing a technically improved production process | Making administrative workflow changes |
| Testing building systems for energy, structural, or acoustic performance | Making aesthetic or preference-based design changes |
| Evaluating failed technical approaches and revising the design | Adapting an existing solution to ordinary customer requirements |
| Developing a new technical method for delivering a service | Conducting market research, surveys, or management studies |
Some engagements will contain work from both columns. The firm should identify the qualifying portion using project records, employee time, technical documentation, and other reasonable support.
Qualified Research Expenses for Professional Services Firms
Once qualifying activities have been identified, the next step is determining which costs may be included as qualified research expenses.
Employee Wages
Wages are often the largest qualified expense for a professional services firm. They may include wages paid to employees who:
- Directly perform qualified research
- Directly supervise qualified research
- Directly support qualified research
Direct supervision generally means immediate, first-line supervision of the research. Higher-level management does not qualify merely because an executive oversees the department or reviews the financial results of the project.
Direct support may include work closely connected to the qualified experimentation. General administration, payroll, human resources, sales, and financial management do not become qualified activities simply because they support a company that performs research.
An owner’s or officer’s wages may qualify when the person actually performs, directly supervises, or directly supports qualified research. The firm still needs records showing what that person did and how much time was connected to the qualified activity.
Supplies Used in Research
The cost of nondepreciable supplies used in qualified research may be included. For an engineering or design firm, this could include materials consumed in prototypes or testing.
Capital equipment, office supplies, general overhead, and depreciable property are generally not treated as qualified research supplies.
Certain Computer Rental or Lease Costs
Certain costs for renting or leasing off-premises computers used in qualified research may qualify under specific requirements. Ordinary software subscriptions, hosting expenses, cloud costs, and general technology expenses should not automatically be included without reviewing the applicable rules.
Contract Research Expenses
A taxpayer may generally include 65% of eligible amounts paid to another person to conduct qualified research on the taxpayer’s behalf. Special percentages can apply to certain research consortiums, universities, federal laboratories, and eligible small businesses performing qualified energy research.
The contract should be reviewed before these expenses are included. The agreement should clarify the work being performed, payment terms, ownership rights, and which party bears the financial risk of the research.
Client-Funded Research Requires a Contract Review
Client-funded work is one of the most difficult areas in an R&D tax credit study for professional services firms.
Research funded by another person or a governmental entity may be excluded. However, receiving payment from a client does not settle the analysis by itself. The contract terms, payment structure, ownership of the research, and financial risk all need to be considered.
Questions to review include:
- Is payment guaranteed regardless of whether the technical work succeeds?
- Is payment tied to successful completion or acceptance?
- Does the professional services firm retain substantial rights to use the research?
- Does the client own all rights to the resulting process, software, or design?
- Is the engagement fixed-fee, time-and-materials, cost-plus, or milestone-based?
- Is the firm required to correct unsuccessful work without additional payment?
- Who bears the cost when an experimental approach fails?
The contract type is evidence, but it does not answer every tax question on its own. Two agreements described as “fixed fee” may allocate risk and rights very differently.
This review is particularly important for the R&D tax credit for consulting firms because much of the work is performed under client contracts. The tax analysis should be completed with the actual agreements, statements of work, change orders, and payment terms available.
What Does Not Qualify for the R&D Tax Credit?
The federal research credit generally excludes:
- Research performed after commercial production has begun
- Routine adaptation of an existing product or process to a customer’s needs
- Duplication of an existing product or process
- Surveys and studies
- Research in the social sciences, arts, or humanities
- Certain internal-use software activities
- Research conducted outside the United States or a U.S. territory
- Research funded by another party
Professional services firms should also be cautious about including ordinary quality control, routine testing, cosmetic changes, standard implementation work, general project management, and administrative process improvements.
Difficult work is not necessarily qualified research. Neither is work that required many hours. The technical uncertainty and process of experimentation remain central to the analysis.
Documentation Should Start With the Project, Not the Tax Return
A credible research credit claim begins with project-level documentation. A calculation built entirely from interviews and estimated percentages at year-end is more difficult to support than one tied to records created while the work was being performed.
Useful documentation may include:
- Project charters and statements of work
- Technical requirements and design documents
- Records identifying the uncertainty at the beginning of the project
- Design alternatives and technical evaluations
- Prototype records, models, and simulations
- Testing plans and test results
- Software tickets, version histories, and source-control records
- Engineering calculations and design revisions
- Meeting notes discussing technical problems and alternatives
- Records of failed approaches and the changes made afterward
- Employee time records and payroll reports
- General ledger details and supply invoices
- Contractor agreements and invoices
- Client contracts, change orders, and intellectual property provisions
The records should connect the people and costs to the business component. A payroll report proves that an employee was paid, but it does not prove that the employee performed qualified research. A technical report may prove that experimentation occurred, but it does not establish how much of each employee’s time should be included.
The strongest file brings those records together.
Form 6765 Now Requires More Project-Level Information
The reporting expectations for Form 6765 have expanded. For tax years beginning after 2025, Section G is generally required unless a defined exception applies.
A business may be excepted when its total qualified research expenses are $1.5 million or less, its average annual gross receipts for the prior three tax years are $50 million or less, and it is claiming the credit on an original return. A separate exception can apply to certain qualified small businesses making a reduced payroll tax credit election.
When Section G is required, the taxpayer generally reports business components representing at least 80% of total qualified research expenses, subject to a maximum of 50 business components. The form also separates employee wages among people who performed, directly supervised, or directly supported the research.
This makes project tracking more important. A firm that records all technical payroll in one general department may have trouble connecting the costs to the business components reported on the return.
Firms should establish project codes, time categories, and documentation procedures before year-end rather than attempting to reconstruct the information after the return is due.
The R&D Credit and Section 174A Are Related but Different
For tax years beginning after December 31, 2024, Section 174A generally allows taxpayers to deduct domestic research and experimental expenditures in the year they are paid or incurred. A taxpayer may instead elect to capitalize and amortize qualifying domestic expenditures over a period of at least 60 months.
That deduction is separate from the Section 41 research credit.
An expense may receive treatment as a research or experimental expenditure without satisfying every requirement of the R&D credit. The credit has its own four-part test, excluded activities, qualified expense categories, and calculation rules.
A business claiming the credit must also address Section 280C. Taxpayers can generally elect a reduced credit on the original timely filed return, including extensions, rather than make the corresponding deduction adjustment under the regular rules. The choice should be evaluated before the return is filed because it can affect both the current tax result and future reporting.
The credit calculation is not simply a fixed percentage of total research spending. Form 6765 provides a regular credit method and an alternative simplified credit method, each of which considers qualified expenses and a base-period calculation.
R&D Tax Credit for a Small Business
An R&D tax credit small business analysis may involve benefits beyond a regular income tax credit.
A qualified small business may elect to apply up to $500,000 of its research credit against the employer portion of Social Security tax. To qualify for this election, the business generally must have less than $5 million in gross receipts for the credit year and no gross receipts before the five-tax-year period ending with that year.
The election must generally be made on a timely filed income tax return, including extensions. After the election is made, the payroll tax credit is claimed using Form 8974 with the applicable employment tax return.
Other small businesses may be able to use the credit against alternative minimum tax when the eligible-small-business requirements are satisfied.
Ownership structures matter. Controlled groups and businesses under common control may need to aggregate gross receipts and qualified research expenses. A firm should not test eligibility one entity at a time when related companies may need to be treated as a single taxpayer.
A Practical Review Process for Professional Services Firms
A useful research credit review usually starts with the firm’s projects rather than its payroll.
Begin by listing the projects in which the firm developed or improved a technical product, process, software program, technique, formula, or invention. For each project, determine:
- What was the business component?
- What technical uncertainty existed at the beginning?
- Which alternatives were evaluated?
- What testing, modeling, simulation, prototyping, or systematic trial and error occurred?
- Which employees performed, supervised, or directly supported that work?
- Which wages, supplies, computer costs, or contract research expenses can be connected to the project?
- Was the work performed in the United States?
- Do the client contracts create a funded-research concern?
- What documentation was created while the work was being performed?
- Can the firm explain why the qualified work was different from its routine client service?
Projects that cannot be explained at this level should not be included simply to increase the credit.
A smaller, well-supported claim is generally more valuable than a larger estimate that cannot be tied to specific technical work, employees, and records.
Frequently Asked Questions About the R&D Tax Credit for Professional Services
Can a consulting firm claim the R&D tax credit?
Yes, a consulting firm may qualify when it performs technological research that meets the four-part test. Business strategy, management advice, market research, accounting, and routine implementation work generally do not qualify by themselves.
R&D tax credit eligibility for consultants depends on the specific activities performed, not the use of the word “consulting” in the firm’s name.
Does client-paid work qualify for the R&D tax credit?
It depends on the contract. Payment terms, financial risk, ownership rights, acceptance provisions, and the firm’s ability to use the resulting research should be reviewed.
Client payment does not automatically mean every activity is funded research, but professional services firms should not include the work without reviewing the underlying contract.
Do architects qualify for the R&D tax credit?
Architectural firms may qualify for technical work involving building performance, structural integration, energy systems, acoustics, building envelopes, or other engineering-based uncertainty.
Aesthetic design, routine drafting, code research, and changes based only on client preference generally do not qualify by themselves.
Can software developers claim the credit for bug fixes?
Routine bug fixes and ordinary maintenance generally do not qualify. Work addressing a broader technical uncertainty involving architecture, performance, security, scalability, or interoperability may qualify when the four-part test is met and the experimentation is documented.
Do unsuccessful projects qualify?
They can. The research credit does not require a successful final result. A failed project may still qualify if the firm conducted a documented process of experimentation intended to resolve technical uncertainty.
Do owner wages qualify as research expenses?
They may qualify when the owner is an employee and actually performs, directly supervises, or directly supports qualified research. The firm should maintain records of the owner’s technical role and time rather than including compensation based solely on title or ownership.
Can research performed outside the United States qualify?
Research conducted outside the United States or a U.S. territory generally does not qualify for the federal research credit. This can be significant for technology and engineering firms using offshore development teams.
Is the R&D credit the same as deducting research expenses?
No. Section 174A addresses the treatment of domestic research and experimental expenditures, while Section 41 governs the research credit. The definitions, requirements, and calculations are related but not identical.
Evaluate Activities Before Estimating the Credit
The R&D tax credit for professional services can provide a meaningful tax benefit, but it should be based on the firm’s actual technical work rather than a percentage applied across payroll.
Engineering firms, software developers, architects, and technology consultants should identify qualifying business components, separate experimentation from routine client work, review their contracts, and connect qualified expenses to contemporaneous project records.
Among professional services tax credits, the R&D credit requires one of the most activity-specific analyses. That work is easier when tax planning, project accounting, payroll, and documentation are coordinated during the year instead of after the return is prepared.
Prudent Accountants helps professional services firms evaluate tax-planning opportunities, organize financial and payroll records, and coordinate the information needed for a supportable tax filing. With offices serving Minneapolis, Dallas, and Fort Worth, we work with businesses nationwide.
Learn more about our tax preparation and year-round tax planning services or schedule a complimentary 30-minute conversation.
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