An Employer Identification Number (EIN) is a nine-digit federal tax identification number issued by the Internal Revenue Service (IRS). Many businesses need an EIN to hire employees, open a business bank account, file certain tax returns, or establish business credit. While some sole proprietors can legally operate without one, obtaining an EIN is often a smart step because it helps separate your business and personal finances. StartupWerx can help you complete the business formation process, including obtaining an EIN when applicable.<\/p>\n\n\n\n
Guide ID:<\/strong> SWX-011<\/p>\n\n\n\n Pillar:<\/strong> Business Formation<\/p>\n\n\n\n Parent Guide:<\/strong> SWX-001 \u2013 Form, Manage, and Grow a Small Business<\/p>\n\n\n\n Obtaining an Employer Identification Number (EIN) is one of the first administrative steps many entrepreneurs complete after forming a business.<\/p>\n\n\n\n Think of an EIN as your business’s federal tax identification number. Similar to how a Social Security number identifies an individual, an EIN identifies a business for certain federal tax purposes.<\/p>\n\n\n\n Although not every business is legally required to obtain an EIN, many business owners choose to get one because it can simplify banking, hiring employees, establishing business credit, and maintaining a separation between personal and business finances.<\/p>\n\n\n\n Whether you’re forming an LLC, corporation, partnership, or starting a sole proprietorship, understanding when an EIN is required\u2014and how to obtain one\u2014can help you avoid unnecessary delays as you launch your business.<\/p>\n\n\n\n In this guide, you’ll learn what an EIN is, who needs one, how to apply, and common mistakes to avoid.<\/p>\n\n\n\n An Employer Identification Number (EIN), sometimes called a Federal Employer Identification Number (FEIN), is a unique nine-digit number assigned by the IRS.<\/p>\n\n\n\n Its primary purpose is to identify a business for federal tax administration.<\/p>\n\n\n\n An EIN may be used when:<\/p>\n\n\n\n Although “Employer Identification Number” includes the word “employer,” businesses without employees may still need\u2014or choose\u2014to obtain one.<\/p>\n\n\n\n An EIN consists of nine digits in the following format:<\/p>\n\n\n\n 12-3456789<\/strong><\/p>\n\n\n\n The number itself does not contain information about your business type or location. It simply serves as a unique identifier assigned by the IRS.<\/p>\n\n\n\n Many businesses are required to obtain an EIN.<\/p>\n\n\n\n Common examples include:<\/p>\n\n\n\n Most multi-member LLCs need an EIN.<\/p>\n\n\n\n Single-member LLCs may also need one depending on their tax elections, employees, or banking requirements.<\/p>\n\n\n\n Both C corporations and S corporations generally require an EIN.<\/p>\n\n\n\n Partnerships typically need an EIN, even if they have no employees.<\/p>\n\n\n\n Businesses that hire employees generally need an EIN for payroll tax reporting.<\/p>\n\n\n\n Organizations applying for tax-exempt status generally need an EIN before filing with the IRS.<\/p>\n\n\n\n Certain trusts and estates also require EINs for federal tax administration.<\/p>\n\n\n\n Some sole proprietors can legally operate using their Social Security number if they:<\/p>\n\n\n\n However, many sole proprietors still obtain an EIN because it can:<\/p>\n\n\n\n As your business evolves, obtaining an EIN early may make future administrative tasks easier.<\/p>\n\n\n\n Even when not legally required, many entrepreneurs find an EIN beneficial.<\/p>\n\n\n\n Common advantages include:<\/p>\n\n\n\n Using an EIN instead of your Social Security number may help present a more professional image when working with banks, suppliers, and customers.<\/p>\n\n\n\n Many financial institutions require an EIN before opening a business checking account.<\/p>\n\n\n\n Having your EIN available can help streamline the account opening process.<\/p>\n\n\n\n If your business hires employees, you’ll generally need an EIN for payroll reporting and federal employment tax purposes.<\/p>\n\n\n\n Many lenders and financial institutions use an EIN when evaluating business credit applications.<\/p>\n\n\n\n While an EIN alone doesn’t establish credit, it is commonly used as part of the business credit process.<\/p>\n\n\n\n Many entrepreneurs obtain an EIN early\u2014even before it’s legally required\u2014to avoid delays when expanding their business, hiring employees, or applying for financing.<\/p>\n\n\n\n You can apply for an EIN directly through the IRS at no cost.<\/p>\n\n\n\n However, many entrepreneurs choose to complete their business formation through StartupWerx<\/a><\/strong>, where the EIN application can be coordinated as part of the overall formation process. This approach can save time, reduce administrative complexity, and help ensure your business formation, registration, and tax identification steps are completed in the proper sequence.<\/p>\n\n\n\n For first-time business owners, handling these steps together often provides a smoother path from business idea to launch.<\/p>\n\n\n\n The Internal Revenue Service (IRS) offers several ways to apply for an Employer Identification Number. For many U.S.-based businesses, the online application is the fastest option.<\/p>\n\n\n\n Before applying, make sure your business has been legally formed (if applicable) and that you know who will serve as the responsible party<\/strong> for the application.<\/p>\n\n\n\n Depending on your business structure, you may be asked to provide:<\/p>\n\n\n\n Having this information available before you begin can make the application process faster and reduce the likelihood of errors.<\/p>\n\n\n\n For businesses whose principal place of business is located in the United States or U.S. territories, the IRS online application is generally the quickest method.<\/p>\n\n\n\n If all eligibility requirements are met, many applicants receive their EIN immediately after completing the online application.<\/p>\n\n\n\n Businesses may also submit the appropriate IRS application form by fax.<\/p>\n\n\n\n Processing times vary depending on IRS workload.<\/p>\n\n\n\n Applications can also be mailed to the IRS.<\/p>\n\n\n\n Mail applications typically take longer to process than online submissions.<\/p>\n\n\n\n Businesses whose principal place of business is outside the United States have additional application options outlined by the IRS.<\/p>\n\n\n\n Processing times depend on how you apply.<\/p>\n\n\n\n
\n\n\n\nIntroduction<\/h1>\n\n\n\n
\n\n\n\nKey Takeaways<\/h1>\n\n\n\n
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\n\n\n\nWhat Is an EIN?<\/h1>\n\n\n\n
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\n\n\n\nWhat Does an EIN Look Like?<\/h1>\n\n\n\n
\n\n\n\nWho Needs an EIN?<\/h1>\n\n\n\n
Limited Liability Companies (LLCs)<\/h3>\n\n\n\n
\n\n\n\nCorporations<\/h3>\n\n\n\n
\n\n\n\nPartnerships<\/h3>\n\n\n\n
\n\n\n\nBusinesses With Employees<\/h3>\n\n\n\n
\n\n\n\nNonprofit Organizations<\/h3>\n\n\n\n
\n\n\n\nTrusts and Estates<\/h3>\n\n\n\n
\n\n\n\nDo Sole Proprietors Need an EIN?<\/h1>\n\n\n\n
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\n\n\n\nBenefits of Having an EIN<\/h1>\n\n\n\n
Professional Business Identity<\/h2>\n\n\n\n
\n\n\n\nEasier Banking<\/h2>\n\n\n\n
\n\n\n\nHiring Employees<\/h2>\n\n\n\n
\n\n\n\nBuilding Business Credit<\/h2>\n\n\n\n
\n\n\n\nSupporting Future Growth<\/h2>\n\n\n\n
\n\n\n\nShould You Apply Yourself or Use a Formation Service?<\/h1>\n\n\n\n
How to Apply for an EIN<\/h2>\n\n\n\n
Information You’ll Typically Need<\/h3>\n\n\n\n
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\n\n\n\nWays to Apply for an EIN<\/h1>\n\n\n\n
Apply Online<\/h2>\n\n\n\n
\n\n\n\nApply by Fax<\/h2>\n\n\n\n
\n\n\n\nApply by Mail<\/h2>\n\n\n\n
\n\n\n\nInternational Applicants<\/h2>\n\n\n\n
\n\n\n\nHow Long Does It Take?<\/h1>\n\n\n\n