How to Get an EIN in Alabama (2026)

Fact-checked by the LegalGlass editorial team against primary sources · Published Aug 6, 2026 · Last updated Aug 6, 2026

To get an Employer Identification Number (EIN) for your Alabama business, apply directly with the Internal Revenue Service (IRS) online, by fax, or by mail using Form SS-4. The application is free, and an EIN is typically assigned immediately for online applications. Most Alabama businesses, including multi-member LLCs, corporations, and any business with employees, are required to have an EIN for federal tax purposes and to open a business bank account.

An Employer Identification Number (EIN), also known as a Federal Tax Identification Number, is a nine-digit number assigned by the IRS to identify businesses for tax purposes. It functions much like a Social Security Number (SSN) for individuals. For Alabama businesses, obtaining an EIN is a crucial step for federal tax compliance, opening business bank accounts, and often for state-level registrations.

This guide details the process for obtaining an EIN for an Alabama business, covering eligibility, application methods, and common scenarios. For a general overview of the EIN, see our national guide on how to get an EIN.

When an Alabama Business Needs an EIN

Most Alabama businesses will need an EIN. The IRS requires an EIN if your business:

• Has employees.
• Is taxed as a corporation or partnership. This includes multi-member LLCs, which are federally taxed as partnerships by default.
• Files excise, employment, alcohol, tobacco, or firearms tax returns.
• Withholds taxes on income, other than wages, paid to a non-resident alien.
• Involves certain types of organizations, such as trusts, estates, real estate mortgage investment conduits, non-profit organizations, farmers' cooperatives, or plan administrators.

Even if not federally mandated, an EIN is often practically necessary for other business functions. For example, most banks in Alabama will require an EIN to open a business checking or savings account, regardless of your business structure or employee status. Additionally, the Alabama Department of Revenue may require an EIN for certain state tax registrations, such as for sales tax or employer withholding, even for single-member LLCs or sole proprietorships without employees.

For a sole proprietorship or a single-member LLC (SMLLC) that does not have employees and is not required to file excise tax returns, the IRS generally treats the business as a "disregarded entity." This means the business income and expenses are reported on the owner's personal tax return using their SSN. However, as noted, an EIN is still often needed for practical reasons like banking or state tax compliance in Alabama.

How to Apply for an EIN (Free)

The IRS offers three methods to apply for an EIN, all of which are free of charge:

1. Online (Recommended): The fastest method, resulting in an immediate EIN.
2. Fax: Typically processed within four business days.
3. Mail: The slowest method, taking several weeks for processing.

Regardless of the method, you will need to complete IRS Form SS-4, Application for Employer Identification Number. Even when applying online, it's helpful to review the form beforehand to gather all necessary information.

1. Online Application (Recommended)

The IRS online EIN application is available through the IRS website. This method is generally recommended due to its speed and convenience. To apply online:

1. Access the IRS EIN Assistant.
2. Follow the step-by-step instructions, answering questions about your business and the responsible party.
3. The "responsible party" is the individual or entity that ultimately owns or controls the entity or who exercises ultimate effective control over the entity. For an LLC, this is typically a member or manager. The responsible party must have a valid Social Security Number (SSN) or Individual Taxpayer Identification Number (ITIN) to use the online application.
4. Upon successful completion, your EIN will be issued immediately. You can download, save, and print your EIN confirmation letter.

Important Note: The online application is only available during specific hours, typically Monday through Friday, 7:00 a.m. to 10:00 p.m. Eastern Time. Also, you can only apply for one EIN per responsible party per day.

2. Fax Application

If you prefer not to apply online or if the responsible party does not have an SSN/ITIN (e.g., a foreign person), you can apply by fax. This method involves completing Form SS-4 and faxing it to the IRS.

1. Download and complete Form SS-4. Ensure all required fields are filled accurately.
2. Fax the completed Form SS-4 to the appropriate IRS fax number. For businesses located in Alabama, the fax number is typically 855-641-6935. You can find the most current fax numbers in the instructions for Form SS-4.
3. If you provide a return fax number, the IRS will fax the EIN back to you within approximately four business days.

3. Mail Application

Applying by mail is the slowest option and should only be used if other methods are not feasible. This method also requires completing Form SS-4.

1. Download and complete Form SS-4.
2. Mail the completed form to the appropriate IRS address. For businesses located in Alabama, the mailing address is typically: Internal Revenue Service, Attn: EIN Operation, Cincinnati, OH 45999. Always verify the current mailing address in the instructions for Form SS-4.
3. The IRS will mail your EIN confirmation letter to you, which can take several weeks.

Information Required for EIN Application

When completing Form SS-4, you will need to provide the following information:

• Legal name of the entity: This should match the name registered with the Alabama Secretary of State for corporations or LLCs, or your legal name for a sole proprietorship.
• Trade name (DBA), if any: If your business operates under a name different from its legal name, also known as a Doing Business As (DBA) or trade name.
• Mailing address: The primary address for your business.
• Responsible party's name and SSN/ITIN: The individual who has control over the business.
• Type of entity: Such as sole proprietorship, partnership, corporation, or LLC.
• Reason for applying: Common reasons include "Started new business," "Hired employees," or "Changed type of organization."
• Date business started or acquired: The month, day, and year your business began.
• Closing month of accounting year: Typically December for most businesses.
• Highest number of employees expected in the next 12 months: (If applicable).
• Principal activity of the business: A brief description of what your business does.

Ensure all information is accurate and consistent with your Alabama business registration documents, such as your Articles of Incorporation for a corporation or Articles of Organization for an LLC, if applicable.

The Responsible Party and EIN Application

The IRS defines a "responsible party" as the individual or entity that ultimately owns or controls the entity or who exercises ultimate effective control over the entity. This person is responsible for ensuring that the business meets its federal tax obligations.

• Sole Proprietorship: The sole proprietor.
• Partnership: Any general partner.
• Corporation: A principal officer.
• Limited Liability Company (LLC): A member or manager.

The responsible party's name and Taxpayer Identification Number (SSN, ITIN, or existing EIN) must be provided on Form SS-4. For online applications, the responsible party must have an SSN or ITIN. If the responsible party does not have an SSN or ITIN, they must apply by fax or mail, indicating "Foreign" in the SSN/ITIN field and providing a reason.

For more information on ITINs, see our guide on what is an ITIN.

Alabama State Tax Requirements and EIN

While an EIN is a federal identification number, it is often a prerequisite for various state-level registrations in Alabama. The Alabama Department of Revenue (ADOR) manages state taxes and business registrations.

• Business Privilege Tax: Alabama imposes a business privilege tax on all corporations, LLCs, and other entities doing business in the state. This tax is administered by the ADOR, and an EIN is typically required for registration. See the ADOR Business Privilege Tax page for details.
• Sales and Use Tax: If your Alabama business sells tangible personal property or certain services, you will need to register for a sales and use tax license with the ADOR. An EIN is generally required for this registration.
• Employer Withholding Tax: If your business has employees in Alabama, you will need to register with the ADOR for employer withholding tax. An EIN is essential for this process.
• Other Licenses and Permits: While Alabama does not have a single statewide general business license, many businesses require specific state or local licenses and permits depending on their industry and location. An EIN is frequently requested during these application processes. See the ADOR Business License page for more information.

It is advisable to obtain your EIN before proceeding with state-level business registrations in Alabama to ensure a smooth process.

Common EIN Scenarios for Alabama Businesses

Understanding specific scenarios can clarify EIN requirements:

• New Alabama LLC: If you are forming a new Alabama LLC, you will need an EIN. If it's a multi-member LLC, the IRS automatically classifies it as a partnership, requiring an EIN. If it's a single-member LLC, while not always federally required if you have no employees, an EIN is almost always needed for banking and state tax purposes.
• New Alabama Corporation: All corporations, including those formed in Alabama, are required to have an EIN.
• Sole Proprietorship with Employees: An Alabama sole proprietorship that hires employees must obtain an EIN.
• Changing Business Structure: If your Alabama business changes its legal structure (e.g., from a sole proprietorship to an LLC or corporation), you will generally need a new EIN.
• Purchasing an Existing Business: If you purchase an existing business, you may need a new EIN, depending on the legal structure of the acquisition. Consult IRS guidelines or a tax professional.

For more detailed information on specific business structures, refer to the IRS resources on LLCs, sole proprietorships, partnerships, and corporations.

Frequently Asked Questions

How much does it cost to get an EIN in Alabama?

An Employer Identification Number (EIN) is always free when obtained directly from the Internal Revenue Service (IRS). There are no fees associated with applying for an EIN, regardless of whether you apply online, by fax, or by mail.

How long does it take to get an EIN for an Alabama business?

Applying for an EIN online through the IRS website is the fastest method, typically resulting in immediate assignment of the EIN. Fax applications usually take about four business days, while mail applications can take several weeks.

Do I need an EIN for a single-member LLC in Alabama?

A single-member LLC that does not have employees and is not required to file excise tax returns generally does not need an EIN for federal tax purposes, as it is treated as a disregarded entity. However, an EIN is often required by banks to open a business account, and by Alabama for certain state tax registrations like the business privilege tax or sales tax.

Can I get an EIN without a Social Security Number (SSN)?

Yes, if you do not have an SSN or ITIN, you can still apply for an EIN by mail or fax using Form SS-4. You will need to indicate that you do not have an SSN/ITIN and provide a reason, such as being a foreign person. The online application requires an SSN or ITIN for the responsible party.

What is the difference between an EIN and an Alabama business license?

An EIN is a federal tax identification number issued by the IRS for federal tax purposes. An Alabama business license (or 'privilege license') is a state-level permit issued by the Alabama Department of Revenue or local authorities, required for certain types of businesses to operate legally within the state.

What information do I need to apply for an EIN?

You will need the name and taxpayer identification number (SSN, ITIN, or existing EIN) of the responsible party, the business name and address, the type of entity, and the reason for applying. For online applications, the responsible party must have a valid SSN or ITIN.

Related

• How to Get an EIN (cluster hub)
• How to Form an LLC in Alabama
• Alabama Business Privilege Tax
• Alabama Sales Tax Permit
• What is an ITIN?
• S-Corp vs. LLC
• How to Get an EIN in Florida (sibling)

Sources

1. IRS - Employer ID Numbers (EINs).
2. IRS - How to Apply for an EIN.
3. IRS - Form SS-4, Application for Employer Identification Number (PDF).
4. IRS - About Form SS-4, Application for Employer Identification Number.
5. IRS - Taxpayer Identification Numbers (TIN).
6. IRS - Do You Need an EIN?.
7. IRS - Limited Liability Company (LLC).
8. IRS - Sole Proprietorships.
9. IRS - Partnerships.
10. IRS - Corporations.
11. IRS - S Corporations.
12. Alabama Department of Revenue - Business License.
13. Alabama Department of Revenue - Business Registration.
14. Alabama Department of Revenue - Business Privilege Tax.
15. Alabama Secretary of State - Business Entity Records.

LegalGlass provides general information for educational purposes and is not a law firm or a substitute for advice from a licensed attorney or tax professional. Laws, fees, and thresholds change; verify current requirements with the IRS and Alabama Department of Revenue before acting.