If an employer is eligible to file less frequently, the department will not change the filing status. The employer must request to file less frequently. Then the department will analyze the withholding tax account to determine whether the employer may file less frequently. The employer must continue to file at the frequency in the department's records until notified that the filing frequency has been changed. If you will have employees, estimate how much wage withholding you expect to pay for all your employees in one year.
New businesses can file quarterly or can request more frequent filing if desired.
Due dates for quarterly filers will be the last day of the month following the close of the calendar quarter. Quarters end on March 31, June 30, September 30 and December 31. For example, a return is due April 30 for the quarter ending March 31. Monthly filers must file a withholding return on or before the fifteenth day of the following month. Weekly filers must remit any Colorado withholding taxes accumulated as of any Friday on or before the third business day following that Friday.