Before you can legally sell products or services in Colorado, securing a Colorado sales tax permit is a must. This permit authorizes your business to collect and remit sales tax to thex state, which is a key compliance requirement for most sellers.

Whether you’re opening a brick-and-mortar shop, launching an e-commerce store, or offering taxable services, registration with the Colorado Department of Revenue is essential.

In this guide, we’ll walk you through the entire process, from determining eligibility to completing the online application. With clear steps and helpful tips, you’ll be ready to register and start your business on solid legal ground.

What is a Sales Tax Permit in Colorado?

The state of Colorado sales tax permit is 2.9% on the retail sale of tangible personal property. Generally, sales of services are not taxed, except for services explicitly stated as taxable by law.

However, in cases where a transaction involves a bundled sale of both tangible personal property and a service (whether the service is taxable or not), the full purchase price may be taxable, unless certain conditions apply.

To comply with these requirements, businesses must ensure they complete sales tax registration Colorado and obtain a sales tax permit in the state of Colorado if they are making taxable sales.

Do You Need to Register for a Sales Tax Permit in Colorado?

If you’re conducting business in Colorado, determining whether you need to register for a sales tax permit is crucial for compliance. The Colorado Department of Revenue (DOR) outlines specific criteria for various types of sellers.

Here’s a checklist to help you assess your obligations:

  • Doing Business in Colorado: If you sell, lease, or deliver tangible personal property or taxable services in the state or engage in any activities related to the sale, lease, or delivery of these goods or services within the state for use, storage, distribution, or consumption in Colorado.
  • Retailers with Physical Locations in Colorado: If you maintain any place of business within the state, whether directly, indirectly, or via a subsidiary. This could include offices, distribution centers, salesrooms, warehouses, or a home office for a Colorado resident employee. 
  • Retailers Without Physical Locations in Colorado: You must complete the remote seller sales tax registration in Colorado if you’re soliciting orders from Colorado residents by any means, including through direct representatives, advertisements, or other forms of communication without a physical location.
  • Retailer Agents: The Department may treat salespeople or representatives as agents of a retailer and hold them jointly responsible for the collection and payment of sales tax if they operate under the retailer’s direction, sell on the retailer’s behalf, or solicit business for the retailer.
  • Service Enterprises: If you regularly sell tangible personal property to consumers, you must comply with the sales tax licensing, collection, and filing requirements for these sales.
  • Mobile Food Vendors: If you’re making sales from pushcarts, motor vehicles, or other mobile facilities in Colorado, you must obtain a sales tax license, collect sales tax, and remit applicable state and state-administered local taxes for each sale.
  • Flea Markets and Farmers Markets: If you’re selling at a flea market or farmers market in Colorado, you must comply with sales tax licensing, collection, and filing requirements for each market where you sell.

Step-by-Step: How to Get a Sales Tax Permit in Colorado?

If you’re wondering how to get a sales tax permit in Colorado, follow these clear steps to ensure your business is properly registered with the state:

Step 1: Gather Required Information

Before you start the application process, collect the necessary details, such as:

  • Your federal Employer Identification Number (EIN)
  • Business structure (LLC, corporation, etc.)
  • Business name, address, and contact information
  • Details of any owners, partners, or officers
  • Estimated sales for the first year

Step 2: Visit the Colorado Department of Revenue Portal

Go to the official Colorado Department of Revenue (DOR) website to access the Colorado Sales Tax Registration page. Hover over the “Forms” tab or click the white drop-down arrow. Click on “Forms in Number Order” and then click on “CR 0100” located under the “Form Number” column. 

Step 3: View and Download Form

In the new tab, click on “View & Download Form CR 0100.” It will open a new PDF where you will find the form and instructions to fill it accordingly. 

Step 4: Complete the Sales Tax Permit Application

Fill out the form with the required information. Be accurate to avoid delays in processing. You will need to specify details about your business operations and whether you’re going for an in-state or Colorado remote seller sales tax registration.

Step 5: Submit the Application
Send the completed CR 0100 Withholding section only via email to: dor_taxapplications@state.co.us

Step 6: Visit a Taxpayer Service Center or Mail the Form

Bring the completed CR 0100 Colorado Sales Tax and Withholding Account Application, a valid photo ID, and a check or money order for the required license fees to one of the listed service center locations. You’ll receive your license during the visit.

Note: Service center locations and hours may change. For the latest information, visit Tax.Colorado.gov and click on “Contact Us” or call 303-238-SERV (7378).

You can also mail the original form along with a valid photo ID and a check or money order for the appropriate license fees to:

“Colorado Department of Revenue  

Taxpayer Service Center  

PO Box 17087

Denver, CO 80217-0087”

Step 7: Receive Your Sales Tax Permit

Once processed, you’ll receive your Colorado sales tax permit, which you must display at your place of business or keep a copy for remote operations.

What Information Do You Need to Register?

Having everything in place will help the application go smoothly and quickly. So, before you start the registration process for a Colorado sales tax permit, make sure you have the following information ready. 

Business Information

You’ll need to provide your business name, address, phone number, and email address. Make sure all contact details are up to date, as the DOR may need to reach you for important communications.

Employer Identification Number (EIN)

If your business is incorporated or has employees, you’ll need your federal Employer Identification Number (EIN). This is issued by the Internal Revenue Service (IRS) and is used to identify your business for tax purposes.

North American Industry Classification System (NAICS) Code

You’ll also need your NAICS code, which classifies your business based on its activities. This code helps the DOR understand the type of business you’re running.

Responsible Party Details

Make sure you have the details of the responsible party for your business, typically the owner or primary contact. This includes their name, Social Security Number (SSN) or EIN, and contact information.

Sales Estimate and Business Operations

Be prepared to provide an estimate of your annual sales, as well as any information regarding the physical presence or remote operations of your business in Colorado. If you’re a remote seller, the DOR will use this to determine whether you meet the state’s economic sales tax nexus requirements.

Sales Tax Collection Information

You may also be asked about the types of products or services you’ll be selling and whether they are taxable under Colorado state law.

How Much Does It Cost to Register for a Sales Tax Permit in Colorado?

Registering for a Colorado sales tax permit is easy and straightforward, making it one of the more business-friendly states.

License Fee Schedule (Application Period)Fee
January – June of an even-numbered year$16
July – December of an even-numbered year$12
January – June of an odd-numbered year$8
July – December of an odd-numbered year$4

Charitable Organizations

Nonprofits can apply for a Charitable License with a reduced fee of $8.00 (must include proof of status).

Sales Tax Deposit

A $50 refundable deposit is required when submitting your initial application (Form CR 0100). For example, starting a new account with one physical location would cost:

Deposit: $50

License fee: e.g., $16, depending on the period

Total: $66

The deposit is automatically refunded once your business has collected the sales tax remittance.

Note: Do not deduct the deposit from your sales tax return.

This deposit is only required for your first location.

How Long Does It Take to Get Approved?

Once you submit your application for a Colorado sales tax permit, the processing time can vary. Historically, it has taken up to 4–6 weeks to receive your license and account number by mail.

Quick Tip: After applying, keep an eye on your email inbox for any updates or requests for additional information. Also, don’t forget to check your spam or junk folder to ensure you don’t miss any important communications.

Common Mistakes to Avoid When Registering

There are some common mistakes you should avoid to ensure a smooth application. Here are a few to keep in mind:

  • Incomplete or Incorrect Information: Double-check all the information you provide, including your EIN, business address, and responsible party details. Inaccurate information can cause delays or lead to issues with your registration.
  • Failing to Choose the Correct Filing Frequency: Depending on your estimated sales, you’ll need to file sales tax returns on a monthly, quarterly, or annual basis. Selecting the wrong filing frequency could lead to penalties or missed filings.
  • Not Keeping Track of Sales Tax Exemptions: Some goods and services in Colorado are exempt from sales tax. Failing to account for these exemptions could result in overpaying or under-collecting sales tax.
  • Ignoring Renewal and Reporting Requirements: While the sales tax permit itself doesn’t require renewal, businesses must still file periodic sales tax returns. Missing these deadlines can lead to penalties, even if your permit is valid.

What Happens After You Register?

Once you’ve completed the registration process and received your Colorado sales tax permit, there are a few important steps to follow to stay compliant with state laws:

Set Up Your Account

After registration, you’ll receive an account number and login credentials for the DOR online portal. This is where you’ll manage your sales tax filings and make payments. Make sure to keep these credentials secure and accessible.

Determine Your Filing Frequency

Based on your estimated sales, the DOR will assign you a filing frequency: monthly, quarterly, or annually.

  • Monthly: If you come under a certain sales tax threshold (typically $100,000 annually), you’ll file monthly.
  • Quarterly: Businesses with sales lower than this amount are usually assigned to file quarterly.
  • Annually: Small businesses with limited sales may only need to file once a year. Check your filing schedule regularly to avoid missing deadlines.

Start Collecting Sales Tax

Once registered, you’re authorized to collect sales tax on taxable goods or services. Make sure to apply the correct tax rate for Colorado and any applicable local taxes. Keep accurate records of all transactions for reporting purposes.

File Returns, Even If You Have No Sales

Even if you don’t make any sales during a given period, you still need to file a zero return. This keeps your account in good standing and ensures you’re compliant with Colorado’s filing requirements. Missing a return, zero or not, can result in penalties.

Make Payments

Depending on your filing frequency, you’ll need to make payments for the sales tax you’ve collected. Payments are due along with your returns, so make sure to submit both on time.

Stay Up to Date

Colorado may update tax rates, filing requirements, or deadlines, so it’s important to stay informed. Regularly visit the Colorado DOR website and sign up for notifications to ensure you don’t miss any important changes.

Resources & Where to Register

Ready to get started? Here’s everything you need to register for your Colorado sales tax permit and stay compliant with the state’s tax laws:

Simplify Sales Tax Compliance with Commenda

Understanding Colorado sales tax registration and ongoing compliance doesn’t have to be complicated. With Commenda, handling your sales tax is fast, easy, and hassle-free, whether you’re a remote seller, online seller, or marketplace facilitator, according to the physical nexus. 

Commenda helps you:

  • Automate Registration: Get registered for your Colorado sales tax permit in just a few clicks, no paperwork, no guesswork.
  • Ongoing Filing Support: Stay compliant with automated filing and reminders for sales tax returns, so you never miss a deadline.
  • Multi-State Compliance: If you’re selling in multiple states, Commenda simplifies your compliance across all locations, helping you navigate different state tax rules seamlessly.

Let Commenda, a global sales tax platform, take care of the red tape, so you can focus on growing your business. Get compliant fast, no stress, no confusion.