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Sales & Use Tax Resources

 

Colorado Municipal Data Map (useful for viewing municipal boundaries)

Colorado Private Letter Rulings & General Information Letters

Colorado Sales Tax Lookup

IRS Tax Exempt Organization Search

 

United States ZIP Code Map

 

Sales & Use Tax Rules

 

Code of Colorado Regulations

• 1 CCR 201-1: Procedure and Administration
• 1 CCR 201-4: Sales and Use Tax

• 1 CCR 201-5: Sales and Use Tax - Special Rules for Specific Businesses

Colorado Revised Statutes

• Title 39, Article 21: Procedure and Administration
• Title 39, Article 26: Sales and Use Tax

 

Municipal Codes

• City and County of Denver
• City of Thornton
• City of Westminster

 

Tax Agency Web Portals

Colorado Department of Revenue - Revenue Online

Colorado Sales and Use Tax System (SUTS)

 

Municipal Online Portals

• City and County of Denver - eBiz Tax Center

• City of Thornton - Sales Tax Online
• City of Westminster Tax System

 

Tax Agency Websites

Colorado Department of Revenue - Taxation Division

 

Municipal Websites

• City and County of Denver Treasury - Business Taxes
• City of Thornton - Revenue Division
• City of Westminster - Sales Tax & Licensing Division

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