Systems and methods for multi-merchant tokenization may include receiving a transaction from a point of sale terminal of a merchant, validating the merchant ID against merchant logs, and generating a token for the transaction. The token includes a primary account number, expiration, and a group ID. Additionally, the system provides the primary account number to a payment system and receives a response back. The response is then output back to the merchant along with the token. In subsequent transactions, the system may receive the token from a one point of sale terminal of the merchant. The system validates the merchant ID against merchant logs and ensures the merchant is configured for tokenization. The token is decrypted and the group ID is compared to the merchant ID in the merchant logs. When they match, the primary account number is provided to the payment system for approval.