---
title: "What Is TAC (Auth code)? Domain Glossary | Grit Brokerage"
description: "A secret code from the current registrar that proves you may move a domain to another registrar. ICANN's updated policy calls it a Transfer..."
url: https://gritbrokerage.preview.multisites.ai/glossary/auth-code
publisher: Grit Brokerage
contact: https://gritbrokerage.preview.multisites.ai/contact
offer: https://gritbrokerage.preview.multisites.ai/inquiry
---

Registration and DNS

# Auth code (TAC)

A secret code from the current registrar that proves you may move a domain to another registrar. ICANN's updated policy calls it a Transfer Authorization Code (TAC). Other names are EPP code and transfer key.

## Why it matters

The auth code is the key a seller hands over, directly or through escrow, so the buyer's registrar can pull the domain. The code is tied to the domain and should be treated like a password. Domains must be unlocked first, and a new registration or recent transfer may still be locked. A common mistake is sending the code in an open email before payment is secured. Send it only when the buyer's funds are held in escrow. Some codes expire, so request a fresh one if the transfer stalls. Owners can usually get the code from their registrar account.

Source: [icann.org](https://www.icann.org/en/contracted-parties/accredited-registrars/resources/domain-name-transfers/policy)

[Read nextHow Domain Transfers Work: Auth Codes, Transfer Locks, and Push vs Transfer](https://gritbrokerage.preview.multisites.ai/guides/domain-transfer-process)

## Where we use this term

-   [Domain Sale Scams: How to Spot Fake Buyers, Appraisal Scams, and Fake Escrow](https://gritbrokerage.preview.multisites.ai/guides/domain-sale-scams)
-   [How to Sell a Domain Name: A Broker's Step-by-Step Guide](https://gritbrokerage.preview.multisites.ai/guides/how-to-sell-a-domain-name)

## Buying or selling a domain?

Call, text or email. Responsiveness is our trademark, and a broker answers, not a form robot.

[Talk to a broker](https://gritbrokerage.preview.multisites.ai/contact) [Call (442) 500-GRIT](tel:+1-442-500-4748)