By: Nina Desai | 06/15/26
The federal R&D tax credit has long been a valuable incentive for companies investing in innovation. It is designed to reward businesses that take on technical challenges, experiment with new ideas, and work to improve products, processes, or software. Over time, however, the credit has also become an area of increased IRS attention. As claims have grown in size and complexity, the focus has shifted beyond whether a company is innovative to how well that innovation is supported and documented.
That shift has brought documentation to the forefront of the R&D credit conversation. Historically, many companies relied on retrospective studies prepared after the work was complete, often based on interviews and high-level estimates. While this approach was once common, it has proven less effective as the IRS and the courts have emphasized the importance of records created closer in time to the work itself. This emphasis is reflected in recent court decisions and in expanded Form 6765 disclosure requirements, which call for greater project-level detail and clearer connections between activities and costs at the time a claim is filed. Together, these developments signal a clear expectation that real-time documentation now plays a meaningful role in whether an R&D credit claim holds up under IRS review.
As documentation expectations have evolved, greater importance has been placed on contemporaneous documentation. Contemporaneous documentation refers to records created while R&D activities are actively being performed, or reasonably close in time to when the work and related expenses occur.
These records capture what teams were working on, the technical challenges they encountered, who was involved in performing the work, and how they tested different approaches in real-time. Rather than relying on later recollections, contemporaneous documentation provides a clearer and more reliable picture of the research process as it actually unfolds. As scrutiny continues to increase, these records have become central to supporting both the technical narrative and the financial calculations underlying an R&D tax credit claim.
The IRS does not provide a single, standardized checklist for R&D documentation. Instead, it expects companies to maintain reasonable and consistent records that support the credit being claimed. At a high level, the IRS is focused on understanding three core things:
To address these questions, contemporaneous documentation generally falls into two broad categories: qualitative documentation and quantitative documentation. Together, these records should connect the technical work performed to the individuals involved and the expenses included in the R&D credit calculation.
Qualitative documentation explains the R&D work itself. These records highlight the technical challenges addressed and demonstrate a process of experimentation rather than routine activity. Examples include the following:
Collectively, these records help establish technical uncertainty and the iterative nature of the experimentation process put into place to work through those technical issues.
Quantitative documentation supports how the R&D credit amount was calculated and how expenses relate back to the qualifying activities. Examples include:
Importantly, time tracking does not need to be daily or overly detailed to be effective. Periodic tracking, such as monthly or quarterly tracking, or contemporaneous allocation of time based on project activity, can provide strong support when applied consistently and aligned with underlying project documentation.
Just as important as what companies document is how long those records are retained. As a general guideline, companies should keep R&D documentation for at least seven years.
While the IRS typically has three years from the date a return is filed to examine it, that period can extend to six years in certain circumstances. In addition, R&D credits are often carried forward and used to offset tax liability in future years when a company becomes profitable. When a credit is used in a later year, the IRS is permitted to look back to the year the credit was originally generated and request support for the underlying research and expenses, even if that work occurred several years earlier. Therefore, maintaining records for seven years or more helps ensure documentation is available for whenever a credit is examined or utilized.
The R&D tax credit continues to offer meaningful value for companies investing in innovation, but capturing that value now requires more than identifying qualifying activities. It requires a disciplined approach to documentation that aligns technical work with evolving tax reporting expectations.
By building practical, contemporaneous documentation practices into the R&D process, companies can strengthen their claims, reduce audit risk, and position themselves for long-term sustainability in an increasingly scrutiny-driven environment.
For more information on building defensible R&D documentation practices, please contact Nina Desai at Bennett Thrasher.
Documentation should be created during or close to the time the research activities occur. While some retrospective analysis is expected, narratives prepared without real-time support are increasingly challenged.
Interviews can help clarify facts, provide important background, and add context to the development process, especially when speaking with individuals directly involved in the work. They are a valuable and commonly used part of the analysis but are most effective when paired with records generated during the research process, which help substantiate and reinforce the activities described.
Yes. Qualification under IRC §41 is based on the process of experimentation, not success. Records showing failed trials often provide strong evidence of qualifying research.
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