Glossary/Privacy & Identity/TC String
Privacy & Identity
TC String
The encoded text string created under IAB Europe's TCF that records a user's consent and objection choices for each purpose and vendor.
By Brandon Mina·CEO, BrandPilot AI·Updated November 2026
Short answer
A TC string is the encoded text string created under IAB Europe's Transparency and Consent Framework that records a user's consent and objection choices for each processing purpose and vendor. Consent platforms generate it and pass it through the ad supply chain so vendors can determine whether they may process that user's data.