Colorado Petition for Change of Name (Adult) (JDF 433)
Colorado Judicial BranchLegal name changeForm JDF 433Free downloadLast verified November 10, 2026
Petition an adult uses to ask a Colorado court for a legal change of name. It is filed with the County Court or District Court in the county where the adult lives, not with the vital records office.
Who can use this form
- An adult who is 18 years of age or older.
- The adult is a resident of the county named in the petition.
- The adult states that they have not been convicted of a felony.
- The adult signs under oath before a deputy clerk or a notary public.
What to send with it
- The signed and verified petition, with the reason for the name change.
- A certified, fingerprint-based criminal history record check from the FBI, attached as Exhibit A.
- A certified, fingerprint-based criminal history record check from the CBI, attached as Exhibit B.
- Both record checks must be dated within 90 days of filing the petition.
Where to send it
- Mail to
- See the form for where to file it.
- State fee
- Filing fee: $98 in County Court, $268 in District Court (stated in JDF 432, not on this form).
- Typical processing
- Not provided
- Issued by
- Colorado Judicial Branch
- Form revision
- R3-18
- Source
- Official government page