Signature Tax 15303 Ventura Blvd.9th FloorSherman Oaks, CA, 91403 View Phone 800-971-5974 Fax: 800-971-5978 15303 Ventura Blvd., 9th FloorSherman Oaks, CA 91403 View Website Experience & Reliability About Connect with this Business: Send to My Email Send to My Phone Print this Page