An official website of the United States Governmenr IIRS Help News English Charities & Nonprofits Tax Pros File Pay Refunds Credits & Deductions Forms & Instructions Search Home File Businesses and Self-Empleyed Small Business and Self-Employed Employer ID Numbers Apply for an Employer Identification Number (EIN) Online Apply for an Employer Identification Number (EIN) Online English Espaiol #X(HL pY 3301 PyccKwi TiengViet KreyoLayisyen Individuals Hours of Operation Related Topics Businesses and Self-Employed Monday to Friday, 7 a.m to 10 p.m: Eastern Standard Time_ State and Federal Online Business Registration Small Business and Self-Employed Online EIN: Frequently_Asked Employer ID Numbers Step 1: Determine Your Eligibility Questions Employer ID Numbers Business Taxes You may apply for an EIN online if your principal business is located in the System Requirements United States or U.S. Territories_ Privacy_Act Statementand Reporting Information The person applying online must have valid Taxpayer Identification Number Papenwork Reduction Act Notice Returns (SSN, ITIN, EIN). You are limited to one EIN per responsibleparty per Businesses With Employees Self-Employed The "responsible party" is the person who ultimately owns or controls the entity or who exercises ultimate effective control over the entity. Unless the Starting Business applicant is government entity; the responsible party must be an 2 individual (i.e , natural person), not an entity: IRS Five Things to _c# Operating Business day: