The operation of Ventanilla Unica involves four steps:

1. The applicant enters to www.ventanillaunica.gob.mx using its electronic signature records online digital information relating to the import, export and transit of goods.

2. The digital information is sent to the relevant government offices for approval and authorization.

3. Taxes are calculated and deducted automatically from a bank account concerned.

4. The transport company presents a simplified customs declaration;

The customs inspector analyzed the information via a handheld device and releases the goods.

To use the tool is indispensable an Electronic Signature (FIEL), the applicant can renew online or deal with it in person at the office of the Tax Administration.

For more information about FIEL enter, http://www.sat.gob.mx/sitio_internet/e_sat/tu_firma/