PEEC finalizes revisions to tax services independence guidance

The AICPA Professional Ethics Executive Committee (PEEC) approved revisions to the “Tax Services” interpretation (ET sec. 1.295.160) of the AICPA Code of Professional Conduct, completing a multiyear project to strengthen and clarify independence requirements when members provide tax advisory and tax planning services to attest clients.

The revised interpretation, adopted in May, maintains a principles-based framework and provides guidance for evaluating potential threats to independence, such as advocacy — when a member champions a client’s interest to a point that compromises independence and objectivity — and self-review. The final standard becomes effective Jan. 15, 2027, and early implementation is permitted.

PEEC undertook the project as part of its broader effort to harmonize, where appropriate, the AICPA code with international ethics standards and to address a gap in existing guidance. Though the code addressed services such as tax return preparation, payment transmittal, and representation before taxing authorities, it did not specifically address independence considerations for more complex tax consulting activities.

PEEC concluded that a principles-based approach remains appropriate for those services rather than the more restrictive international standards and that additional guidance would help protect the public interest and promote consistent application of the code.

Exposure draft process

PEEC issued its first exposure draft in June 2024. That proposal largely followed the international model and introduced a “more likely than not” threshold for success if a tax position is challenged by tax authorities. Although commenters generally supported expanding the interpretation, many objected to using a single quantitative threshold. They said the standard could be too restrictive for practitioners serving private-company attest clients and potentially discourage legitimate tax planning opportunities.

After reviewing comment letters and input from the AICPA Tax Executive Committee, PEEC concluded that a single threshold was not appropriate for the wide range of tax advisory and planning services practitioners provide.

PEEC released a second exposure draft in September 2025 that replaced the threshold with principles-based guidance. Under this approach, practitioners employ professional judgment and illustrative factors to evaluate threats to independence using the conceptual framework approach rather than applying a fixed likelihood-of-success standard.

Final changes

The final standard largely retains the principles-based guidance from the second exposure draft but includes targeted refinements based on stakeholder feedback.

Notably, PEEC removed a proposed factor related to transactions designed solely for tax avoidance and lacking economic substance. PEEC concluded that those situations should be considered under the broader factor addressing whether the tax position is supported by applicable tax laws, regulations, and precedent. The committee was concerned that retaining the specific factor could effectively re-create the threshold-based approach that PEEC previously agreed may not be appropriate, considering the variety of tax advisory and planning services that can be performed.

The final interpretation clarifies that members should apply professional judgment to determine whether significant threats to independence exist. When they do, practitioners should use the Conceptual Framework for Independence (ET sec. 1.210.010) to evaluate and reduce those threats through appropriate safeguards. Independence is impaired only if threats cannot be eliminated or reduced to an acceptable level.

What will change for practitioners

For practitioners, the key change is that tax advisory and tax planning services are now expressly addressed within the “Tax Services” interpretation. Firms providing those services to attest clients will continue to evaluate potential self-review and advocacy threats and determine whether safeguards can reduce those threats to an acceptable level. The revisions provide specific guidance that members may consider when performing that evaluation.

Relevant factors may include the degree of confidence that the tax position is supported by applicable authority; whether the position reflects an established practice used by the profession; whether the position would be reviewed by taxing authorities; and the significance of the tax matter to the subject matter of the attest engagement, including the client’s financial statements.

PEEC intentionally avoided adopting a bright-line threshold. Practitioners will retain flexibility to exercise professional judgment based on the facts and circumstances of each engagement.

Effective date

The revisions become effective Jan. 15, 2027, and early implementation is permitted.

In the interim, firms can familiarize personnel with the new guidance and the expanded independence considerations that may apply when providing tax planning and tax advisory services to attest clients.

— Kelly D. Mullins is the communications manager for the AICPA Professional Ethics Division. To comment on this article or to suggest an idea for another article, contact Neil Amato at Neil.Amato@aicpa-cima.com.