A common question is whether engineering costs count for the federal R&D tax credit under Section 41. The short answer is that engineering costs may relate to the credit when the engineering work constitutes qualified research or direct support of qualified research — but ordinary engineering that does not satisfy the four-part test generally is not a qualified research expense. This page explains the framework in general terms. It is educational and is not individualized advice. For the foundational framework, see our page on qualified research expenses.
Engineering Wages as In-House Research Expenses
Under Section 41(b)(2), in-house research expenses include wages paid to employees for "qualified services" — which means services consisting of engaging in qualified research, engaging in the direct supervision of research activities that constitute qualified research, or engaging in the direct support of research activities that constitute qualified research. Engineering wages may be taken into account when the engineer's services fall within one of these three categories. For more, see our page on employee wages.
The key question is what the engineer actually did, not the job title. An engineer who spends the year evaluating alternative designs to resolve a technical uncertainty about a business component may be engaging in qualified research. An engineer who spends the year on routine production support, customer troubleshooting, or ordinary design work using established methods may not.
Outside Engineering as Contract Research
Amounts paid to outside engineering firms may warrant review as contract research, subject to the contract-research rules under Section 41(b)(3) and the Treasury Regulations (§1.41-2). The requirements include that the research be performed on behalf of the taxpayer, that the taxpayer bear the economic risk of failure, and that the taxpayer retain substantial rights to the results. The reduced inclusion percentage (65 percent) applies to contract research. Not every payment to an outside engineering firm is contract research — the work must constitute qualified research and the contractual requirements must be met. For more, see our page on contractor costs.
Direct Research, Direct Supervision, Direct Support
For employee engineering wages, the three qualified-services categories provide the framework:
- Direct research — engineers who perform the activities that satisfy the four-part test for qualified research.
- Direct supervision — engineers who directly supervise the qualified research activities of others, rather than performing general management.
- Direct support — engineers who directly support qualified research activities, rather than performing general overhead or administrative functions.
Indirect support, general management, or administrative functions generally do not qualify, even if performed by an engineer. For more, see our page on employee wages.
Ordinary Engineering vs. Qualified Research
A central distinction is between ordinary engineering and qualified research. Ordinary engineering — applying established engineering principles to known problems where there is no technical uncertainty about the capability, method, or appropriate design — generally is not qualified research, even if it is sophisticated, difficult, or performed by licensed engineers. Qualified research requires a process of experimentation directed at eliminating a technical uncertainty about a business component.
The distinction turns on whether there is a genuine technical uncertainty and whether the work involves an evaluative process of alternatives. An engineer designing a component to an established specification using known methods is generally performing ordinary engineering. An engineer evaluating alternative designs to resolve a question about whether a new capability can be achieved may be engaging in qualified research. For more, see our pages on qualified research and the four-part test.
Hypothetical Example
Consider a manufacturing company that is developing a new heat-treatment process to achieve a specific metallurgical property, and the company is uncertain whether the process can achieve the target. The company's metallurgical engineer designs alternative process parameters, runs test cycles, and evaluates the results. The engineer's wages may warrant review as qualified research expenses under the direct-research category, provided the activity constitutes qualified research.
By contrast, if the same engineer spends most of the year specifying standard heat-treatment cycles for routine production orders using established parameters, those wages generally would not be qualified research expenses, because the work applies known methods to known problems without a process of experimentation.
This example is illustrative only and does not state that the costs definitely qualify.
Documentation That May Help
Records that can help support engineering-cost claims include project assignments, time and activity records, descriptions of the technical uncertainty and alternatives evaluated, records connecting engineers to specific business components and qualified activities, and for outside engineering, engagement agreements and statements of work. For more, see our page on R&D tax credit documentation.
Key Takeaway
Engineering costs may relate to the R&D tax credit when the engineering work constitutes qualified research or direct support of qualified research. Employee engineering wages may be taken into account under the qualified-services categories, and outside engineering costs may warrant review as contract research. Ordinary engineering that does not satisfy the four-part test generally is not a qualified research expense. Because these determinations are fact-specific, professional review is appropriate before claiming the credit.