Colorado Trade Name Registration: How to File a DBA and What It Costs

If you're starting a business in Colorado under a name different from your legal name or entity name, you need to register that name with the Colorado Secretary of State. This registration is called a Statement of Trade Name, commonly known as a DBA (doing business as) filing. The process is straightforward, inexpensive, and takes minutes to complete online.

This guide walks you through exactly what you need, how to file, what it costs, and how long it takes. If you're ready to register your Colorado trade name, you'll have the information you need to do it correctly the first time.

What Is a Colorado Trade Name (DBA)?

A trade name is any name other than your legal name (if you're a sole proprietor) or your registered entity name (if you're an LLC or corporation) under which you conduct business. Colorado calls this a "trade name" or "assumed name." Most people refer to it as a DBA, for "doing business as."

For example:

• Your LLC is registered as "Smith Consulting LLC" but you want to operate as "Mountain Peak Consulting" - you need a trade name registration.
• You are a sole proprietor named Jane Smith, but you want to do business as "Colorado Home Services" - you need a trade name registration.
• You're a corporation registered as "ABC Holdings Inc." but you operate a retail store called "The General Store" - you need a trade name registration.

A trade name registration does not create a new legal entity. It is a registration that tells the public and the Secretary of State that you are operating under an assumed name. Your underlying business structure (sole proprietorship, LLC, or corporation) remains the same.

Do You Need to File a Colorado Trade Name?

You are required to file a Statement of Trade Name in Colorado if:

• You are a sole proprietor operating under any name other than your legal name.
• You are a partnership and operating under any name other than your partners' names.
• You are an LLC or corporation operating under any name other than your registered business name.

If you operate under your exact legal name as a sole proprietor with no additional words, you generally do not need to file. However, if you use any variation, abbreviation, or additional words, you must file.

The trade name registration requirement is statewide. Unlike some states, you do not file at the county level in Colorado. The Secretary of State handles all trade name registrations.

What You Need Before Filing

Gather the following information before you start your online filing:

• Your legal name (if you're a sole proprietor) or your registered entity name and ID number (if you're an LLC or corporation).
• The trade name you want to register (exactly as you plan to use it).
• The county in Colorado where you conduct business or where your principal place of business is located.
• A physical street address in Colorado where the business operates or is managed (a P.O. box does not work for this requirement).
• Your phone number and email address.
• A valid credit card to pay the $20 filing fee online.

Before you file, you may want to check whether your chosen trade name is available. The Colorado Secretary of State maintains a business search tool where you can look up existing registered names.

Step-by-Step: How to File a Colorado Trade Name

Step 1: Go to the Colorado Secretary of State Online Filing Portal

Navigate to the Colorado Secretary of State Business Organizations online filing system at https://www.coloradosos.gov/pubs/business/fileAForm.html. This is the official portal where all business documents, including trade names, must be filed online.

Click on the link to file a Statement of Trade Name. The portal will guide you through the form with clearly labeled fields.

Step 2: Confirm You Are Filing as a Trade Name (Not a New Entity)

The first question will likely ask what you are filing. Select "Statement of Trade Name" or "Trade Name" from the dropdown menu. Do not select options for forming a new LLC or corporation, as you are only registering a name, not creating a new business entity.

Step 3: Enter Your Legal or Registered Name

If you are a sole proprietor, enter your full legal name as you would use it in contracts and legal documents. If you are an LLC or corporation, enter the exact registered name of your entity as it appears on your Articles of Organization or Articles of Incorporation. Include your entity ID number if the form requests it. This information identifies who the trade name belongs to.

Step 4: Enter the Trade Name You Want to Register

Type the exact trade name or DBA name you want to register. This is the name that will appear on signage, business cards, invoices, and to the public. Make sure the spelling and punctuation match exactly how you intend to use the name. The Colorado Secretary of State does not consider capitalization or punctuation differences as making a name distinct, so "Mountain Peak Consulting" and "mountain peak consulting" are treated as the same name.

Step 5: Provide Your Principal Place of Business in Colorado

Enter a physical street address in Colorado where the business is located or managed. This cannot be a P.O. box or a mailbox service. If your business has multiple locations, use the primary location or the address where management decisions are made. This is the address the Secretary of State will use if anyone needs to reach you regarding the trade name.

Step 6: Specify the County

Select the Colorado county where your principal place of business is located. For example, if your business operates in Denver, select Denver County. If you operate in multiple counties, list the one where your main office is situated.

Step 7: Review and Submit

Review all the information you entered for accuracy. Check spelling, the exact trade name, and the address. Once you are satisfied, agree to the terms and submit the form. The system will ask for payment information.

Step 8: Pay the Filing Fee

The online filing fee for a Statement of Trade Name in Colorado is $20. Enter your credit card information to complete the payment. Your filing will not be processed until payment is received. Once your payment clears, you will receive a confirmation number and your filing is complete.

Colorado Trade Name Filing Costs

Colorado's trade name filing fees are among the lowest in the country.

Filing Type	Fee
Statement of Trade Name (initial filing)	$20
Renewal of Statement of Trade Name	$5

The $20 fee covers your online filing and registration. There are no additional state fees, no county fees, and no local fees for trade name registration in Colorado. Unlike some states, Colorado does not charge separate filing fees at the county level for trade names.

If you work with a business filing service or attorney, they may charge additional service fees, but the official Secretary of State fee is always $20 for the initial filing.

Processing Time and When Your Registration Takes Effect

One of the major advantages of Colorado's online filing system is speed. When you file your Statement of Trade Name online, the filing is processed in real time. Your trade name registration becomes effective immediately upon successful payment. You do not need to wait days or weeks for approval.

Once your filing is complete, you will receive a confirmation number and can use your trade name in business right away. The Secretary of State will update its records within seconds, and your name will be searchable in the Colorado business database.

If you ever need to verify that your trade name is registered, you can search the Colorado Secretary of State's business database at https://www.coloradosos.gov/biz/BusinessEntityCriteriaExt.do using your registered name.

Trade Name Renewal in Colorado

Your Statement of Trade Name in Colorado must be renewed periodically. Renewal is required every five years. The renewal deadline is based on the date you originally filed. When your renewal is due, the Colorado Secretary of State will send you a notice to the address on file, but it is your responsibility to renew on time.

The renewal fee is $5, which is much lower than the initial filing fee. You renew online using the same portal where you filed originally. If you do not renew by the deadline, your trade name registration will become inactive, and you should not continue using that name in business.

Mark your calendar or set a reminder five years from your filing date. Renewal takes just minutes and costs only $5.

Tips for Filing Your Colorado Trade Name Successfully

• Check availability before filing. Use the Colorado Secretary of State's business search tool to verify that your desired trade name is not already registered. While Colorado does not require a formal name reservation, searching first prevents filing a name that is already taken.
• Be specific about the county. Make sure you select the correct county where your business operates. If your business spans multiple counties, select the one where your main office or principal place of business is located.
• Use a physical street address. P.O. boxes, mailbox services, and virtual office addresses do not satisfy the Colorado requirement for a physical Colorado address. The Secretary of State needs an actual street address where your business can be reached during normal business hours.
• Match your legal entity name exactly. If you are registering a trade name for an existing LLC or corporation, use the exact registered name as it appears on your filing with the Secretary of State, including all abbreviations and punctuation. Even small variations can cause confusion.
• File online, not by mail. Colorado's online filing system processes in real time. Paper filings are not necessary and would only delay your registration. File online at the Secretary of State's official portal.
• Keep your confirmation number. After you file, save your confirmation number and the filing receipt. You may need this proof of registration for bank accounts, licenses, or legal purposes.

Common Mistakes to Avoid

• Filing at the county instead of the state. Colorado trade names are registered with the Secretary of State, not at the county clerk's office. Some neighboring states require county filing, but Colorado does not. Do not waste time or money filing at the county level.
• Using a P.O. box as your business address. The address you provide must be a physical location where the business operates or is managed. Mailbox services and P.O. boxes do not meet this requirement and may cause your filing to be rejected.
• Forgetting to renew. Your trade name registration expires after five years. If you continue to use the name without renewing, you are operating without a valid registration. Renew before the deadline even if you receive no notice from the Secretary of State.
• Assuming you do not need a trade name registration. If you operate under any name other than your legal name, you need to register it. Operating without a trade name registration when one is required can lead to legal and tax complications. File early, not after you have already been using the name in business.
• Confusing a trade name with an LLC or corporation formation. Filing a Statement of Trade Name does not create a new business entity. If you want to form an LLC or corporation, you must file Articles of Organization or Articles of Incorporation in addition to (or instead of) a trade name. A trade name alone does not limit your personal liability.

After You File: What Comes Next

Once your Colorado trade name is registered, you have a few additional steps to complete to fully launch your business:

• Open a business bank account. Most banks will require proof of your trade name registration (your confirmation number or a filing receipt) along with your personal ID to open a business account under your trade name.
• Apply for an Employer Identification Number (EIN) if needed. If you have employees or operate as an LLC, partnership, or corporation, you will need an EIN from the IRS. The EIN is separate from your trade name registration and is obtained directly from the IRS (not the Colorado Secretary of State).
• Research other licenses and permits. Depending on your industry, you may need additional state or local licenses. The Colorado Department of Regulatory Agencies (DORA) issues professional licenses, and your city or county may require business licenses or permits. Research your specific industry before opening for business.
• Update your business records. If you operate as an LLC or corporation, update your internal records and any operating agreements to reflect your trade name. Let your registered agent know if you have one.

Important Disclaimer

This article provides informational guidance about Colorado trade name registration. It is not legal advice, tax advice, or a substitute for consulting with a qualified attorney or tax professional. Business formation and naming rules vary by situation. If you have questions about whether a trade name is right for your business, how it affects liability or taxes, or how it interacts with other business structures, consult a Colorado attorney or CPA.

Ready to Register Your Colorado Trade Name?

Filing a Statement of Trade Name in Colorado is fast, affordable, and straightforward. With a $20 fee and instant processing, you can register your trade name in minutes and start using it in business the same day. Visit the Colorado Secretary of State online filing portal at https://www.coloradosos.gov/pubs/business/fileAForm.html to get started.

If you are considering forming a new LLC or corporation instead of (or in addition to) filing a trade name, refer to Colorado's official business formation resources at https://www.coloradosos.gov/pubs/business/businessHome.html. For questions specific to trade names, the Secretary of State provides a detailed FAQ at https://www.coloradosos.gov/pubs/business/FAQs/tradeNames.html.