Linking Business with Government

Read the latest legislation update from Jefferson County Business Lobby.

Read the latest Economic Profile Report.

Attached, please find the Q1 2017 Economic Summary for Jefferson County. The report contains information on economic headlines, real estate activity, employment data, and consumer and retail activity in Jefferson County. This report was prepared by Development Research Partners in conjunction with Jeffco EDC.

The 1st quarter results on economic growth and changes in Jefferson County are in! Check out how we are doing compared to Metro Denver and the US as a whole. You'll be glad you did!

Presentations by Government Officials:

Federal Government & State of Colorado

Use the chart below to determine which state and federal agencies require registration of your business.

Federal Government – Internal Revenue Service (IRS)

Every business must be identified by either a Social Security number or a federal tax identification number, also known as a FEIN (Federal Employer Identification Number) or EIN (Employer Identification Number), Form SS-4.  This number is the basis for all deposits and report filings.

Sole Proprietors generally use their Social Security number for filing.  If you are a Sole Proprietorship with employees, you need to apply for a FEIN.  Those forming businesses under structures such as General Partnership, Limited Partnership, Corporation, Limited Liability Company (LLC), Limited Liability Partnership (LLP), Limited Partnership Association (LPA), and Non-Profit Organization use an FEIN.

IRS - General Information

1 (800) 829-1040

Any entity that has registered the same or similar trade/business name higher than the state may have a claim that supersedes your own.  To gather additional information at the federal level go to:


Secretary State - General Information

(303) 894-2200

Jefferson County Government

If you are doing business within Jefferson County, you need contact the county regarding the following:

  1. The issuance of a liquor license
  2. Plan review, issuance of licenses, and the inspection of businesses engaged in activity that affects the health and environment of the citizens of the county (e.g. daycare, restaurants, mobile food service)
  3. The valuation and collection of Commercial Property Taxes
  4. The valuation and collection of Business Personal Property Taxes
  5. Workforce/Labor Issues

Business Information – Jefferson County
Business Information - General
(303) 279-6511

Assessor’s Office – Jefferson County
Business Personal Property Tax Information
(303) 271-8600

Planning and Zoning – Jefferson County
General Information
(303) 271-8700

Road and Bridge Administration– Jefferson County
(303) 271-5200

Health Department – Jefferson County
General Information
(303) 232-6301

Liquor Licensing – Jefferson County
(303) 271-8167

Building and Signage – Jefferson County
General Information
(303) 271-8260