What is IAB TCF v2.3?

IAB TCF v2.3 is the latest version of the Transparency and Consent Framework, introduced to remove ambiguity for users, publishers, and vendors.

TCF 2.3 clarifies how purposes, features, and legitimate interest claims must be displayed to users. It introduces more precise rules around how CMPs communicate with vendors, helping reduce inconsistent interpretations of earlier versions.

OneTrust is releasing support for TCF 2.3 beginning with the Fall seasonal release, giving customers ample time to prepare, test, and validate their implementations ahead of the February 28th, 2026 enforcement deadline.

In short, v2.3 provides clearer guidance and stricter requirements to build trust with users while ensuring organizations and vendors interpret and act on consent in the same way.