Arizona voters approved Proposition 207 (adult use marijuana) in the 2020 General Election. For more information, click here.
Customer Notice: Due to COVID-19, ADOR's in-person lobby services are by appointment only and in compliance with local municipal and county face covering policies.
The Internal Revenue Service revised Form SS-4, Application for Employer Identification Number (EIN), to clearly identify the applicant’s true owner. Effective January 2010, all mail, fax, phone, and electronic EIN applications must disclose the name and taxpayer identification number of the true “responsible party” for the entity requesting an EIN.