Colorado Income Tax Withholding Payment and Filing Requirements

Employers in Colorado must conform with these state rules relating to filing income tax withholding returns.

Periodic Returns. Quarterly (Form DR 1094) by the last day of the month following the end of quarter; monthly (Form DR 1094) by the 15th day of the following month.

Annual Reconciliation Returns. Form DR 1093 due by last day of February.


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