Colorado Department of Revenue form DR 0004
DR004 the new Colorado withholding certificate that is optional for employees to complete starting in 2022. It is not meant to replace form W-4 for Colorado withholding, but is meant to help employees in a few specific situations who may want to fine-tune their Colorado withholding. If an employee asks about adjusting their withholding, the employer is required to provide form DR 0004 to them.