You may adjust your withholding at any time. Consider completing a new certificate for the following reasons:
1. You last completed a certificate three or more years ago;
2. Your wages or other income changes significantly;
3. Your number of jobs changes;
4. Your expected filing status (single, married filing jointly, etc changes;
5. Your expected federal deductions change significantly; or
6. Your expected Colorado tax credits change significantly. Carefully consider how your qualifications and the requirements, amount, and availability of each credit may change each year. For example, the new Family Affordability portion of the Child Tax Credit may change based on the age of your children, your adjusted gross income, and the state revenue forecast. For more information, go to Tax.Colorado.gov/Income-Tax-Credits.