The Department of Revenue is processing 2023 income tax returns. For more information, please read the Department's announcement.


DR 1102 - Address or Name Change Form


Use this form to notify the Department of Revenue of a name or address change. To change the address for a specific physical location you operate or sell into, refer to your sales tax license for the 8-digit Colorado Account number followed by a 4-digit location (site) number and indicate in the form. Be sure to include the effective date for the address change to avoid incorrect assessments of tax liability.