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City of Longmont
Sales & Use Tax
350 Kimbark Street
Longmont, CO 80501
(303) 651-8672

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Sales and Use Tax General Information

To Do Business in Longmont

Current City of Longmont Sales Tax Rates

City of Longmont = 3.275%
State of Colorado = 2.90%
RTD = 1.00%
Cultural = 0.10%
Boulder County = 0.80%
TOTAL Combined Sales Tax Rate in Longmont: 8.075%

Licenses and Forms you will need to do business in Longmont:

Longmont Sales Tax License

City of Longmont Sales Tax License: The one time license fee is $25.00. License processing may take up to ten (10) working days from the date the application is received by the City.

To request one, please email or contact her directly at (303) 651-8672.

Sales and Use Tax Return Form

State of Colorado - Business Registration

You will also need to register your business with the State of Colorado. Please visit the Colorado Business Express website to complete their forms.

Sole Proprietors - Lawful Presence Form

Sole Proprietors also need to complete a lawful presence form.

Home Business - Occupation Form

If you operate a business out of your home you will need to complete a home occupation form.

Other Information for New Businesses


Telecommunication Providers that offer local exchange service in Longmont must comply with the ordinance.

The occupation tax is $7.5718 per line, per year based on the line count provided to the City by the vendor as of June 30 of each year.


Please check with the City Clerk's office for special licensing requirements required by City Code:

Amusement rides & carnivals

Special Licensing requirements through the Building Inspection Division for:

Special Licensing requirements through the Parks and Forestry Division for:



Modified: 03/19/2014 SW