Lab notes — including lab notebooks, experiment logs, and research notes — can help support R&D tax credit documentation. This page explains how lab notes can support a credit claim. It is educational and is not individualized advice. For the general documentation concepts, see our page on R&D tax credit documentation.
How Lab Notes Support the Uncertainty Element
Lab notes that identify the technical question being addressed can help support the elimination-of-uncertainty element. Notes that describe what is uncertain about the capability, method, or design can help demonstrate a technical uncertainty. For more, see our page on elimination of uncertainty.
How Lab Notes Support the Alternatives Element
Lab notes that identify the alternatives being evaluated can help support the process-of-experimentation element. Notes that describe what alternatives are being tested, how they are being tested, and what the results are can help demonstrate an evaluative process. For more, see our page on process of experimentation.
How Lab Notes Support the Iteration Element
Lab notes that show how results informed the next step can help demonstrate the iteration process. Notes that show what was learned from each experiment and how it informed the next can help demonstrate a genuine evaluative process.
What Makes Lab Notes Useful
Useful lab notes for R&D documentation tend to:
- identify the technical question or uncertainty;
- describe the alternatives being tested;
- record the test method and conditions;
- record the results;
- describe what was learned and the next steps;
- be contemporaneous — written when the work was occurring.
Hypothetical Example
Consider a manufacturer that has lab notes identifying the technical question (whether a formulation can achieve the required stability), the alternatives being tested (three candidate formulations), the test method, the results, and what was learned. These notes can help support the uncertainty, alternatives, and iteration elements.
By contrast, lab notes that only record data without identifying the uncertainty or alternatives are less useful.
These examples are illustrative only.
Key Takeaway
Lab notes can help support R&D tax credit documentation by showing the technical question, alternatives, tests, and results. Notes are most useful when they are contemporaneous and identify the uncertainty and alternatives. Because documentation adequacy is fact-specific, professional review is appropriate.