A common question is what "research after commercial production" means and how it affects the R&D tax credit. The short answer is that research conducted after commercial production begins is excluded from qualified research under Section 41(d)(4)(A). Later improvements may constitute separate research, production troubleshooting is generally excluded, and the pilot/prototype boundary is a key consideration. 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.
The Commercial-Production Exclusion
Under Section 41(d)(4)(A), research conducted after the beginning of commercial production of a business component is excluded from qualified research. The Treasury Regulations (§1.41-4(c)(2)) address this exclusion. The basic idea is that research conducted after the business component is ready for commercial sale or use is excluded. For more, see our page on qualified research.
When Commercial Production Begins
The timing of when commercial production begins is a facts-and-circumstances determination. Generally, commercial production begins when the business component is ready for commercial sale or use. Activities that occur before commercial production begins — during the development phase — are more likely to be part of qualified research. Activities that occur after commercial production has begun may fall within the exclusion.
Later Improvements May Constitute Separate Research
The exclusion does not mean that all work after commercial production is excluded. Later improvements to a business component may constitute separate qualified research, provided the improvement involves a new technical uncertainty and a process of experimentation. For example, after a product reaches commercial production, the company may begin developing a significantly improved version that involves a new technical uncertainty. The development of the improved version may warrant review as separate qualified research, even though the original product is in commercial production.
Production Troubleshooting
Production troubleshooting — diagnosing and fixing production problems after commercial production has begun — is generally excluded, unless it involves developing an improved business component through a new process of experimentation. Routine troubleshooting that applies known fixes to known problems is generally not qualified research. Troubleshooting that involves a new technical uncertainty and a process of experimentation directed at developing an improved component may warrant review. For more, see our page on troubleshooting vs. R&D.
The Pilot/Prototype Boundary
The pilot/prototype boundary is a key consideration. Pilot production and prototype testing that occur during the development phase, before commercial production, are more likely to be part of qualified research. Once the business component reaches commercial production, subsequent activities may fall within the exclusion. Records that show when commercial production began can help support the timing of the development activities. For more, see our page on prototypes and pilot runs.
Hypothetical Example
Consider a manufacturer that develops a new product, conducts prototype testing during development, and then begins commercial production. The prototype testing during development may warrant review as qualified research. After commercial production begins, the manufacturer experiences a production problem and troubleshoots it by applying known fixes. The troubleshooting is generally excluded. Later, the manufacturer begins developing a significantly improved version of the product that involves a new technical uncertainty. The development of the improved version may warrant review as separate qualified research.
This example is illustrative only and does not state whether any particular activity qualifies.
Documentation That May Help
Records that can help support the commercial-production analysis include records showing when commercial production began, records of activities before and after that date, and records of any later improvements that constitute separate research. For more, see our page on R&D tax credit documentation.
Key Takeaway
Research conducted after commercial production begins is excluded from qualified research under Section 41(d)(4)(A). Later improvements may constitute separate research, production troubleshooting is generally excluded, and the pilot/prototype boundary is a key consideration. Because the timing determination is fact-specific, professional review is appropriate.