Special Review Topics

Do Style, Taste, or Cosmetic Changes Count as R&D?

Style, taste, and cosmetic changes are excluded from qualified research under Section 41(d)(3)(B). Functional or performance improvements may warrant review, and the food/product design nuance requires distinguishing technical development from taste-only changes.

A common question is whether style, taste, or cosmetic changes count as R&D for the federal R&D tax credit. The short answer is that style, taste, and cosmetic changes are excluded from qualified research under Section 41(d)(3)(B). Functional or performance improvements may warrant review, and the food/product design nuance requires distinguishing technical development from taste-only changes. This page explains the framework in general terms. It is educational and is not individualized advice. For the foundational framework, see our page on permitted purpose.

The Statutory Permitted-Purpose Limitation

Under Section 41(d)(3)(B), research is not treated as conducted for a qualified purpose if it relates to style, taste, cosmetic, or seasonal design factors. This is part of the permitted-purpose element of the four-part test. The basic idea is that work directed primarily at appearance, styling, flavor, or cosmetic features generally does not satisfy the permitted-purpose element, even if it involves effort or expertise. For more, see our page on permitted purpose.

Aesthetic-Only Changes

Aesthetic-only changes — changing a color, gloss level, visual texture, flavor, or cosmetic appearance without a technical uncertainty about functional performance — are excluded. The work may involve effort and expertise, but the permitted-purpose element is not satisfied because the research relates to style, taste, or cosmetic factors.

Functional or Performance Improvements

Functional or performance improvements may warrant review, even if they also change the appearance. The key question is what the research is directed at: functional or technical performance, or appearance. A coating change that improves both appearance and corrosion resistance may warrant review if the functional improvement involved a technical uncertainty and a process of experimentation. A coating change that only changes the color is excluded.

The Food/Product Design Nuance

Food and product design raises a particular nuance. For food, a formulation change that improves taste or appearance is generally excluded if it is directed at taste or cosmetic factors. A formulation change that improves shelf stability, texture, processability, or ingredient interactions — where there is a technical uncertainty and a process of experimentation — may warrant review, even if it also changes the taste. The distinction turns on what the research is directed at. For more, see our page on food formulation development.

Hypothetical Example

Consider a manufacturer that changes the color of a product for aesthetic reasons. There is no technical uncertainty about functional performance; the change is purely cosmetic. This is excluded under Section 41(d)(3)(B).

By contrast, if the manufacturer develops a new coating formulation that achieves better corrosion resistance (a functional improvement) and happens to have a different color, the work may warrant review if the functional improvement involved a technical uncertainty and a process of experimentation.

These examples are illustrative only and do not state whether any particular activity qualifies.

Documentation That May Help

Records that can help support the style/taste/cosmetic analysis include records showing what the research was directed at (functional performance or appearance), records of the technical uncertainty (if any), and records of the process of experimentation (if any). For more, see our page on R&D tax credit documentation.

Key Takeaway

Style, taste, and cosmetic changes are excluded from qualified research under Section 41(d)(3)(B). Functional or performance improvements may warrant review, and the food/product design nuance requires distinguishing technical development from taste-only changes. Because the distinction is fact-specific, professional review is appropriate.

Sources

  1. Internal Revenue Code §41

    Cornell Law Institute (LII)

    Section 41(d)(3)(B) excludes research relating to style, taste, cosmetic, or seasonal design factors from qualified purpose.

  2. Treasury Regulation §1.41-4

    Cornell Law Institute (LII)

    Addresses the permitted-purpose element and the style/taste/cosmetic exclusion.

  3. Instructions for Form 6765

    Internal Revenue Service

    Summarizes qualified research and excluded activities.

  4. Research Credit

    Internal Revenue Service

    IRS landing page for the Credit for Increasing Research Activities.

By R&D Ledger Editorial Team

Last reviewed: August 2026

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