Jurisdictional Tax Parameters
Amend details of your registered fictitious name for your Colorado sole proprietorship.
Official State Document Mirror
Clicking download will instantly open the live application form hosted on the official government registry server.
Filing Authority Mapping
How to amend a fictitious name:
- Complete the Amendment to Fictitious Name Registration form.
- Include current registration number.
- Submit with $20 fee via online portal or mail.
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