How do I sign my eFiled tax form?
When a Trading Partner Agreement (TPA) is submitted, one of the entries populated by the person submitting it is the Security Code. The TPA is also signed by an authorized representative. The BOE issues an Authorization Code when it approves the TPA. These two data elements, the Security Code provided by the filing party and the Authorization Code provided by the BOE, create an electronic signature that is specific to the TPA and the signature by the authorized representative on the TPA. If the information on the TPA changes, a new TPA is required to maintain a valid electronic signature with the BOE.
