An Employer Identification Number (EIN), also known as a Federal Tax Identification Number, is a unique nine-digit number assigned by the Internal Revenue Service (IRS) to business entities operating in the United States for tax reporting purposes. It's essentially the Social Security number for your business. If you're forming an LLC, C-Corp, S-Corp, or any other business structure, obtaining an EIN is often a critical step, especially if you plan to hire employees, operate as a corporation or partnership, or file certain tax returns. Understanding the structure of an EIN, including what the first two digits signify, can offer insights into its origin and assignment. This guide will delve into the specifics of EIN prefixes, explaining what they mean and how they are assigned by the IRS. For related guidance, see our article on setting up your Alabama LLC. We'll cover the common prefixes you'll encounter and clarify any potential confusion surrounding them. This knowledge is vital for business owners navigating the complexities of federal tax identification and ensuring compliance with IRS regulations. Whether you're a sole proprietor looking to transition to an LLC or a startup founder establishing a new corporation, grasping the nuances of your EIN is fundamental to managing your business finances and legal obligations effectively. Lovie can help streamline the entire process of business formation, including obtaining your EIN.
The most common question about EINs is, "What do EIN numbers start with?" The answer lies in the first two digits of the nine-digit number, separated by a hyphen from the rest (e.g., XX-XXXXXXX). These initial digits, known as the "area number" or "prefix," are assigned by the IRS based on the geographical location of the applicant at the time of application. The IRS issues these prefixes to specific IRS centers, which then assign them to businesses within their designated regions. It's important to note that the prefix doesn't necessarily correspond to the state where your business is legally registered or headquartered. For instance, a business formed in California might receive an EIN with a prefix assigned to an IRS processing center in Texas, depending on where the application was processed and assigned. Historically, the IRS used a system where prefixes were directly tied to the state's geographic location. However, this system has evolved. While the initial digits still reflect a geographic assignment, the exact mapping can be complex and isn't always intuitive. For more details, see our guide on starting a business in Alaska. For example, prefixes like '10' through '69' are assigned to entities in the United States and its territories. Prefixes '70' through '80' are reserved for entities outside the US. The IRS assigns these prefixes sequentially within each area. When an IRS center runs out of available numbers in a particular prefix range, they move to the next available prefix. This means that two businesses in the same state might have EINs starting with entirely different prefixes, and a business in one state might have an EIN starting with the same prefix as a business in a completely different state. This geographical assignment is primarily for IRS administrative purposes and doesn't typically impact a business's operations or tax obligations.
The Internal Revenue Service assigns EINs through a structured process designed to manage tax identification efficiently. When you apply for an EIN, typically online via the IRS website (though mail and fax options exist for those unable to apply online), the IRS system assigns a prefix. The IRS doesn't publish a definitive, up-to-the-minute list of every EIN prefix and its exact geographical correlation because the assignment is dynamic and managed by their internal systems. However, general patterns and historical assignments are known. For example, prefixes like '11' through '39' were historically assigned to businesses located in northeastern states, while '40' through '69' covered southern and midwestern states, and '70' through '89' covered western states. Prefixes '90' through '99' were often assigned to specific types of entities or for special purposes. It's crucial to understand that the IRS has a vast pool of prefixes they can assign. They issue these prefixes sequentially within specific geographic areas managed by their service centers. You can learn more about setting up your Arizona LLC to understand the full picture. As these ranges are depleted, new ranges are opened. This means that the prefix of a newly issued EIN might not reflect the most current or precise geographical assignment. For businesses applying from outside the U.S. and its territories, the prefixes '70' through '80' are typically used. The IRS's primary goal in assigning these prefixes is for administrative and statistical purposes, helping them track and manage tax filings across different regions. For business owners, the specific prefix is far less important than having a valid EIN for tax compliance. If you are forming an LLC in Delaware or a C-Corp in Texas, Lovie can help you navigate the EIN application process after your business is legally formed with the state.
While the IRS doesn't provide a rigid, state-by-state lookup for EIN prefixes, general patterns have emerged over time. Prefixes assigned to businesses within the United States typically range from '10' to '69'. For instance, prefixes like '10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '20', '21', '22', '23', '24', '25', '26', '27', '28', '29', '30', '31', '32', '33', '34', '35', '36', '37', '38', '39' were historically associated with the Northeast region. Moving westward, prefixes like '40' through '49' might have been assigned to the Midwest, '50' through '59' to the South, and '60' through '69' to the West. However, these are broad generalizations and not strict rules.
It is important to emphasize that these assignments are not absolute and have become less geographically precise due to the IRS's evolving assignment methods and the sheer volume of EINs issued. For example, you might find an EIN starting with '58' assigned to a business in Florida, which falls within the historical Southern region, but you could also find an EIN starting with '58' assigned to a business in a state not traditionally associated with that prefix range. The IRS uses these prefixes primarily to manage their internal processing and data. For a business owner, the specific prefix is not a factor in your tax obligations or business operations. What matters is that the EIN is valid and properly linked to your business entity. If you're forming a business in any of the 50 states, understanding that the prefix is an IRS administrative detail, not a business identifier tied to your state, is key.
For businesses and entities located outside the United States and its territories, the IRS assigns EINs with specific prefixes to distinguish them from domestic applicants. These prefixes primarily fall within the '70' through '80' range. For example, you might see EINs starting with '70', '71', '72', '73', '74', '75', '76', '77', '78', '79', or '80'. These prefixes signal to the IRS that the applicant is based internationally. This distinction is important for tax administration, as international businesses may have different reporting requirements or tax treaties that apply.
The assignment process for international applicants is similar to domestic ones: the IRS assigns these prefixes based on their internal systems when the application is processed. The specific prefix assigned within this range doesn't denote a particular country or region outside the U.S.; rather, it signifies the entity's non-domestic status. For example, a company registered in Canada applying for an EIN will receive a number starting with one of these international prefixes, just as a company registered in Germany or Japan would. Understanding this helps clarify why an EIN might start with a '7' or '8' when you're accustomed to seeing prefixes from '10' to '69' for U.S.-based businesses. This is a standard practice by the IRS to categorize and manage tax information effectively across different geographic scopes.
While understanding what EIN numbers start with is interesting from an administrative perspective, it's crucial for entrepreneurs forming a business to recognize what truly matters. The prefix of your EIN is an IRS internal identifier; it does not affect your business's legal structure, its ability to operate in a specific state like New York or Florida, or its tax obligations. What is critical is obtaining a valid EIN if your business structure or activities require one. For instance, if you're forming an LLC and plan to hire employees in Texas, you'll need an EIN. If you're incorporating a startup as a C-Corp in California, an EIN is mandatory. The IRS assigns these numbers to ensure proper tracking of business taxes, including corporate income tax, employment taxes, and excise taxes.
When you partner with Lovie for your company formation, we guide you through the entire process, from selecting your business structure (LLC, S-Corp, C-Corp, etc.) to ensuring you understand the requirements for obtaining an EIN. We can help facilitate the EIN application process after your business entity has been successfully registered with the state. Don't get bogged down by the specifics of prefixes; focus on establishing your business correctly and complying with all federal, state, and local regulations. The EIN is a vital piece of that compliance puzzle, and ensuring you have the correct one, regardless of its starting digits, is paramount. Lovie simplifies this by integrating formation and essential post-formation steps into a seamless experience.
Applying for an EIN is a straightforward process, especially when done online directly through the IRS website. This is the fastest and most recommended method. To apply online, you must have a valid Taxpayer Identification Number (TIN), such as a Social Security number (SSN) or an Individual Taxpayer Identification Number (ITIN), and your business must be located within the United States or its territories. The online application is available Monday through Saturday, 7 a.m. to 10 p.m. Eastern Time. You will need to provide information about your business, including its legal name, trade name (if applicable), address, responsible party's name and TIN, and the reason for applying for the EIN.
For entities located outside the U.S. and its territories, or for those unable to apply online, the IRS allows applications via fax or mail. The relevant forms are the Form SS-4, Application for Employer Identification Number. Fax applications are typically processed within about 4 business days, while mail applications can take 4-5 weeks. It's important to accurately complete the Form SS-4, ensuring all information matches your business registration documents. Once your application is approved, the IRS will issue your EIN, and you will receive an official CP 575 notice. This document is crucial for many business activities, including opening a business bank account, applying for licenses and permits, and filing taxes. Lovie can guide you through the requirements and help ensure your application is prepared correctly after your business is formed.
Recommended Entity: LLC
Key Tax Benefit: Home office, equipment, software subscriptions
Compliance Priority: Copyright/IP protection, contract terms
Data sources: State Secretary of State offices, IRS, Tax Foundation (2026). Platform metrics based on anonymized Lovie user data.
US Business Formation guides entrepreneurs through the business formation process with actionable steps. Key components include LLC formation, entity registration, and state filing, each playing a critical role in the business formation process. Understanding liability protection and tax optimization is essential, as these factors directly impact legal compliance.
When evaluating business formation options, factors such as business entity types and formation process should inform your decision-making process.
Understanding What Do Ein Numbers Start With is essential for business compliance and operational success. The specific requirements vary by state and industry.
This aspect of business formation directly impacts your legal standing, tax obligations, and operational flexibility.
The U.S. Small Business Administration provides an official comparison of business structures including LLCs, corporations, and sole proprietorships. See SBA Choose Your Business Structure.
Official SBA guidance on registering your business with federal, state, and local agencies. See SBA Register Your Business Guide.
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