You can contact the Taxpayer Assistance Division by phone, mail, e-mail or by fax. The phone number to this division is: (405) 521-3160; within Oklahoma, you can call toll-free 1 (800) 522-8165; ext: 13160.
If corresponding by mail, the address is:
Oklahoma Tax Commission
PO Box 53248
Oklahoma City, OK 73152-3248.
Email Oklahoma Department of Revenue
For assistance regarding a specific return, please include the name and Social Security number. The Taxpayer Assistance fax number is (405) 522-0576.
You can find department listings, phone numbers and additional contact information on the Oklahoma Tax Commission site.