A common question from manufacturers is whether yield and scrap-reduction projects can qualify as research and development for the federal R&D tax credit under Section 41. The short answer is that yield and scrap-reduction projects may constitute qualified research when the work involves a technical uncertainty and a process of experimentation to evaluate material or process alternatives. Ordinary cost-cutting or applying known fixes generally is not qualified research, and cost reduction alone does not establish qualification. 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.
When Yield and Scrap-Reduction May Warrant Review
Yield and scrap-reduction projects may warrant review when the work involves a genuine technical uncertainty about the cause of yield loss or scrap and a process of experimentation. Under the four-part test, the work must be for a permitted purpose (developing or improving a process or product), be technological in nature, be intended to eliminate uncertainty, and be conducted through a process of experimentation.
Common scenarios that may warrant review include:
- Technical uncertainty about the cause — investigating why a process is producing scrap where the cause is uncertain, and evaluating alternative root-cause hypotheses.
- Material alternatives — testing alternative materials to resolve uncertainty about whether a material change can reduce scrap without sacrificing performance.
- Process alternatives — evaluating alternative process parameters or configurations to resolve uncertainty about whether a process change can improve yield.
- Systematic experimentation — conducting structured tests of alternatives to resolve the uncertainty, rather than simply applying known fixes.
In each case, the question is whether the work evaluates alternatives to resolve a technical uncertainty, not merely whether yield was improved or scrap was reduced.
Cost Reduction Alone Is Not Enough
It is important to understand that cost reduction alone does not establish qualified research. A project that reduces yield loss or scrap by applying known fixes to known problems — for example, adjusting a known parameter back to its established value, or replacing a known worn component — is generally routine production work, not research. The permitted purpose element requires that the work be directed at developing or improving a business component through a process of experimentation, not merely at reducing costs.
What can make a yield or scrap-reduction project qualified research is the presence of a technical uncertainty and a process of experimentation — for example, where the cause of yield loss is uncertain and the company evaluates alternative hypotheses and corrective approaches through structured testing. For more on this distinction, see our page on cost-reduction projects.
Ordinary Cost-Cutting vs. Technical Development
A central distinction is between ordinary cost-cutting and technical development:
- Ordinary cost-cutting — applying known fixes to known problems to reduce costs. There is no technical uncertainty about the cause or the solution. This is routine production work, not research.
- Technical development — investigating an uncertain yield or scrap problem, evaluating alternative causes and solutions, and developing a corrective approach through experimentation. This may warrant review as qualified research.
The distinction turns on whether there is a genuine technical uncertainty and a process of experimentation. A company that is simply applying known fixes is generally not conducting research. A company that is resolving a technical uncertainty about yield or scrap through experimentation may be.
Hypothetical Example
Consider a manufacturer that is experiencing an unexpected increase in scrap from a process and is uncertain why the scrap rate has increased. The company investigates the problem, evaluates alternative root-cause hypotheses (material variation, tool wear, parameter drift), tests each hypothesis through structured experiments, and develops a corrective process change based on the results. This systematic investigation of an uncertain problem and evaluation of corrective alternatives may warrant review as qualified research.
By contrast, if the same manufacturer simply adjusts a known parameter back to its established value to reduce scrap, that is ordinary cost-cutting, not research.
This example is illustrative only and does not state that the activity definitely qualifies.
Documentation That May Help
Records that can help support yield and scrap-reduction claims include investigation records identifying the uncertainty and alternative hypotheses, test results for corrective approaches, before-and-after yield data, and records of how results informed process changes. For more, see our page on R&D tax credit documentation.
Key Takeaway
Yield and scrap-reduction projects may constitute qualified research when the work involves a technical uncertainty and a process of experimentation to evaluate material or process alternatives. Ordinary cost-cutting or applying known fixes generally is not qualified research, and cost reduction alone does not establish qualification. Because the distinction is fact-specific, professional review is appropriate before claiming the credit.