Brazil to Introduce Alphanumeric CNPJ in July 2026

Overview

• Existing numeric registrations will remain valid, numeric and alphanumeric formats will coexist, and Pix keys linked to current CNPJs will not change.
• Letters will be randomly assigned with no link to state or legal attributes, the 14‑character length stays, and the verifier digit will use an ASCII‑based mapping.
• Public and private systems must be updated to read alphanumeric CNPJs or risk issues issuing fiscal documents and onboarding suppliers or clients.
• The first alphanumeric CNPJs will be issued from July 1, 2026 on a gradual basis, including new registrations and branches, with a detailed phasing schedule still to be set.
• The shift addresses nearing exhaustion of codes—especially for large networks like banks and churches—expanding possible combinations to nearly 3 trillion and prompting warnings against scams or fee requests.