To close your business-tax accounts with the Indiana Department of Revenue (DOR), you must submit a Business Tax Closure Request, Form BC-100.
Please send the completed form by fax to (317) 232-1021 or mail to:
Indiana Department of Revenue
P.O. Box 6197
Indianapolis, IN 46206-6197
DO NOT mail AND fax this form. Duplication of information may slow down processing.
If you have any additional questions about closing a business-tax account, you may call (317) 233-4015, Monday through Friday, 8 a.m. - 4:30 p.m. EST.