Get Your Colorado Tax ID Fast and Easy with GovDocFiling
You need a Colorado tax ID to handle all your tax obligations with the IRS and the Colorado Department of Revenue.
If you’re looking for an easy way to get yours, read this detailed guide.
What Is a Colorado Tax ID?
A tax ID most often refers to a federal Employer Identification Number (EIN) used by businesses operating in Colorado or any other state in the US. This IRS-issued number is essential for compliance with both state and federal tax regulations.
You need your Colorado tax ID to file taxes, get a business bank account, and obtain licenses or permits to run a business in the state. Businesses may also need state-specific tax ID numbers from the Colorado Department of Revenue (CDOR).
What are the Different Types of Tax IDs?
While this page focuses primarily on the EIN, it’s easy to get mixed up with the various types of tax identification numbers out there.As such, let’s walk through the most common Colorado tax ID options.

Employer Identification Number
The EIN is the primary tax ID for most businesses in Colorado. This federal tax ID number is required for opening business bank accounts and hiring employees. If your company is set up as a partnership, corporation, or LLC, you’ll need an EIN to operate legally.

State Tax Identification Number
Colorado businesses receive a Colorado Account Number (CAN) from the state’s Department of Revenue. This state tax ID helps track your business for specific obligations in Colorado, including sales tax collection, payroll withholding, and other requirements.

Social Security Number
An SSN is issued by the Social Security Administration and is mainly used by individuals for income reporting and federal tax purposes. In Colorado, sole proprietors without employees can sometimes use their SSN instead of applying for a separate EIN.

Individual Taxpayer Identification Number
The IRS issues ITINs to individuals who need a Colorado tax ID but don’t qualify for an SSN. This tax ID number doesn’t provide work authorization, but it serves foreign residents, their spouses, and dependents who must report income for federal tax purposes.
Why Apply for a Tax ID: Key Benefits
A Colorado tax ID is necessary to operate a legal entity like an LLC, C-corp, or S-corp. It’s also essential for meeting various legal business requirements.Here are the key reasons you should apply for one.
Useful for Tax Filing
A Colorado tax ID allows your business to file federal taxes with the IRS and meet state tax obligations through the Colorado Department of Revenue. Without it, you can’t file for taxes or report income.
This Colorado tax ID helps you register for specific tax accounts like sales tax or payroll withholding. With an EIN, you only share what’s necessary. Your SSN remains secure from unnecessary exposure.


Required for Business Banking
Financial institutions require a Colorado tax ID to open a corporate account or apply for business credit. It verifies your entity and ensures financial separation between personal finances and business funds.
This is essential for corporations and LLCs. It also helps build your organization’s financial credibility when requesting loans, submitting applications, or dealing with revenue-related inquiries.
Essential for Hiring Employees
Your Colorado tax ID is mandatory for hiring and processing payroll taxes. The IRS requires this tax ID to track employer tax obligations, including Social Security and Medicare contributions.
The Colorado Department of Revenue also uses your tax information to monitor state payroll withholding requirements. Without a Colorado tax ID, you can’t legally operate as an employer.


Needed for Licenses and Permits
In Colorado, you can’t run a business without some kind of license or permit. Investors usually want to see your Colorado tax ID before partnering with you. It’s proof that your business is registered.
It helps verify your business with the Colorado Secretary of State and other departments. Having a Colorado tax ID enables you to obtain business licences and tax permits to operate legally.
Why Should You Outsource Your Colorado Tax ID Application?
Applying for a tax ID requires paperwork that’s often time-consuming. Professional business formation services can simplify the process. Here’s why you should outsource your Colorado tax ID application to experts.

Save Valuable Time and Effort
Handling the Colorado tax ID process alone can be time-consuming and confusing. Outsourcing to experts saves time, ensures correct filing with the IRS and Department of Revenue, and supports new businesses.

Ensure Accuracy and Compliance
Submitting forms incorrectly can delay your Colorado tax ID. Professionals know IRS and state rules, ensuring accurate information and full compliance with both federal and Colorado tax requirements.

Get Expert Application Guidance
Navigating the Colorado tax ID process can be confusing with entity types, licenses, and fees. Outsourcing gives you expert guidance and ensures your application meets all state and federal requirements.
How to Apply for a Colorado Tax ID
Applying for a Colorado tax ID involves a few essential steps, whether you’re registering a new business or updating an existing entity.
Here’s how to do it right.
1. Confirm Your Business’s Eligibility for a Tax ID or EIN
Before starting, determine whether your entity needs a Colorado tax ID. Most businesses, from corporations to LLCs, require one for filing income, payroll, or sales taxes. Sole proprietors may use an SSN, but often benefit from registering for an EIN.
Review the requirements for the Colorado Department of Revenue to see which state tax accounts your business needs. Different entity types require additional registrations and tax IDs beyond the federal EIN, so ensure your compliance.


2. Gather All the Required Information and Documentation
Collect essential details, including your legal business name, address, responsible party information, and formation documents. The IRS requires details about your business structure, ownership, and activities for your Colorado tax ID application.
Having complete information ready prevents delays and ensures accurate processing of your Colorado tax ID. This helps prevent rejections, follow-ups, or delays caused by missing information or errors in your business profile.
3. Choose a Preferred Application Filing Method and Provider
You can apply for your Colorado tax ID online, by mail, fax, or by phone if you’re an international applicant. Online filing through the IRS website is free, and approval is immediate. Traditional filings can take weeks, delaying things for you.
Choosing the right filing method depends on your timeline and resources. Most firms prefer the convenience of applying online, while others outsource the process to reliable professional providers like GovDocFiling to ensure accuracy.


4. Submit Your Application and Register State Accounts
Complete Form SS-4 with all the required business information to get your Colorado tax ID. Double-check all details before submitting. This includes legal names, addresses, and business structure details to avoid delays or rejections from the IRS.
Submit your Colorado tax ID application through your chosen method and monitor the status. Once approved, register for state tax accounts, such as income, sales and use tax, and payroll withholding with the Department of Revenue.
Why Choose GovDocFiling for Your Colorado Tax ID Application
When you need a Colorado tax ID quickly, GovDocFiling simplifies the process with expert filing support, secure handling, and fast delivery.
For busy entrepreneurs and growing businesses, it’s fast and reliable. Here’s why:

Fast and Secure EIN Delivery
GovDocFiling processes your Colorado tax ID fast, with real-time tracking. You’ll get your EIN securely and quickly, helping your business stay compliant, file taxes, and register for necessary licenses.

Round-the-Clock Availability
GovDocFiling’s platform is available 24/7, day or night. Their team reviews your form, answers questions, and guides you through the Colorado tax ID process to ensure full federal and state compliance.

Simplified Filing and Compliance
GovDocFiling simplifies the Colorado tax ID application process by handling forms in one place. With clear guidance and accurate submissions, you can stay compliant and focus on growing your business confidently.
FAQ
You can check your IRS confirmation letter, tax returns, bank documents, or business registration documents.
In Colorado, the state tax ID number is referred to as the Colorado Account Number (CAN), and it’s used for state taxes, licenses, and payroll withholding.
Getting a Colorado tax ID number involves a few crucial steps:
- Confirm eligibility: Check your eligibility for a tax ID based on your entity type
- Gather required information: This includes name and formation details
- Decide on your filing method: This could be online, via mail, or third-party providers
- Complete and submit your application: Submit your Colorado tax ID to the IRS, and then register state accounts
While tax ID and EIN are often used interchangeably, “tax ID” can also refer to state-specific numbers like Colorado’s CAN, SSNs for sole proprietors, or ITINs for certain individuals, depending on the context.
Yes, in most cases. If you’re operating a business in Colorado, you’ll need an EIN for federal taxes and a CAN for state-level filings, licenses, and revenue tracking.
Ready to Begin Your Colorado Tax ID Application?
Securing a Colorado tax ID is straightforward with GovDocFiling. Available 24/7, we provide expert assistance and real-time tracking to monitor progress.
No matter your entity type, benefit from our fast and reliable application service.
