If you file for unemployment in Colorado but end up getting a new job before you start claiming benefits, you can opt to cancel your unemployment claim. When you cancel an unemployment claim before collecting any benefits, the claim is removed from the Colorado Department of Labor & Employment system completely. This means that if you find yourself unemployed again and want to re-open the claim, you cannot. Instead, you will be required to open an entirely new claim as if the canceled one never existed.
Check a calendar to determine how many days it has been since you filed your claim. As of May 2011, the Colorado Department of Labor & Employment only gives you 12 days from the date you file the claim to cancel it. The length of time you have before that period is up will help you determine which method to use to cancel the claim.
Write a letter asking to cancel your unemployment claim, if you are not close to the end of the 12-day period. Include your name, mailing address, contact number and the last four digits of your social security number. Send the letter to the Colorado Department of Labor and Employment at 633 17th Street, Suite 201, Denver, CO 80202-3660.
Call the customer service number for Colorado unemployment benefits at 800-388-5515 if you are nearing the 12-day deadline, or if you just prefer to call instead of mail a letter. Give the representative your name and social security number to verify your identity. Once the representative has found your case, ask that your claim be canceled.