source: https://colorado.staterecords.org/marriagerecords/namechange Once your name is officially updated, be sure to update the following: Social Security Card Driver’s License Bank Accounts Payroll Post Office Credit Cards Schools + Alumni Associations Membership Associations and Fraternal Organizations Veteran Affairs Insurance Landlord/Mortgage/Utility Companies Doctors Passport W-4 Form 401k or similar accounts Voicemails Emails Health Proxy Social Media What Documents Do You Need to Change Your Name in Colorado? Certified marriage certificate and proof of address using any of the following documents: Computer-generated utility bill Bank statement First-class mail Vehicle insurance policy mortgage document Motor vehicle registration USPS change of address form Any filed tax form How to Update Your Social Security Card in…