• The Internal Revenue Service
• Oregon Department of Revenue
• Oregon Secretary of State Corporate Division
   Online resource for starting a business in Oregon

• Washington Department of Revenue
• City of Portland Bureau of Licenses
   Information about business licensing in Portland

• TriMet Tax Information
   Information about the TriMet payroll and self-employement tax

Payroll

• W-4 Form
   New employees: Fill out so that your employer can withhold the correct Federal and State income tax from your pay
• I-9 Form
   Homeland Security Form for all employees, including owners, to verify employement eligibility