Gokce Tandogdu
ITIN Specialist, itin.net
An ITIN (Individual Taxpayer Identification Number) is for individuals who need to file U.S. taxes but do not have, and are not eligible to get, a Social Security Number (SSN). It is not a business identification number. Businesses operating in the U.S. require an Employer Identification Number (EIN), also known as a Federal Tax Identification Number, for tax purposes.
If you are asking "what is itin number for business?" because you are a foreign national or non-resident alien planning to start a business in the U.S., or have business dealings that require U.S. tax filings, you need to understand the distinction between these two numbers. The ITIN is for your personal tax obligations, while the EIN is for your business's tax obligations. This distinction is fundamental for compliance with U.S. tax law.
ITIN vs. EIN: The Fundamental Difference
The core difference lies in who they identify. The ITIN identifies an individual for U.S. income tax purposes. The EIN identifies a business entity for U.S. tax purposes. You cannot use an ITIN to file business taxes, nor can you use an EIN to file your personal income taxes.
When You Need an ITIN
You generally need an ITIN if you are a non-resident alien, a resident alien, or a foreign national who has U.S. tax obligations but cannot obtain an SSN. Common scenarios include:
- Filing a U.S. federal tax return (e.g., Form 1040-NR for non-resident aliens) because you have U.S. source income or are claiming tax treaty benefits.
- Being a dependent or spouse of a U.S. citizen or resident alien who is required to file a U.S. tax return.
- Applying for certain U.S. tax benefits or credits.
- Certain other U.S. tax-related requirements.
It is important to note that an ITIN does not authorize you to work in the United States or provide eligibility for Social Security benefits. It is solely for tax reporting.
When You Need an EIN
A business entity generally needs an EIN if it operates in the United States and falls into one or more of the following categories:
- Corporations and Partnerships: All corporations and partnerships must obtain an EIN.
- LLC (Limited Liability Company): A U.S. LLC generally needs an EIN. This is particularly true if the LLC is taxed as a corporation or partnership, has more than one member, or has employees. Even single-member LLCs often need an EIN for banking purposes or if they plan to hire employees. Opening a U.S. bank account for an LLC almost always requires an EIN, even if the LLC is a single-member entity and not otherwise required to have one for tax filing.
- Businesses with Employees: Any business that hires employees must have an EIN.
- Certain Other Entities: This includes trusts, estates, certain non-profit organizations, and other business entities.
- Specific Filings: Businesses that file certain excise tax returns, alcohol, tobacco, and firearms returns, or report tips to the IRS.
If you are forming a business entity like a corporation or partnership, or even an LLC, you will need to apply for an EIN. The application for an EIN is made using Form SS-4, Application for Employer Identification Number, which is filed with the IRS. You can apply for an EIN online, by mail, or by fax. The online application is the fastest method, often providing the EIN immediately upon completion. For foreign applicants, the online system may require a U.S. phone number, so alternatives like faxing or mailing Form SS-4 might be necessary, or using a service that can assist. The EIN application process is separate from the ITIN application process.
How to Obtain an ITIN
If you determine that you need an ITIN for your personal U.S. tax obligations, you will generally apply using Form W-7, Application for IRS Individual Taxpayer Identification Number. The application process involves:
- Complete Form W-7: Fill out the form accurately and completely. You will need to provide your name, address, and other personal information.
- Provide Proof of Identity and Foreign Status: You must submit original documents or certified copies of documents that prove your identity and foreign status. Acceptable documents include passports, national identity cards, birth certificates, and driver's licenses. The IRS will return your original documents to you.
- Attach a U.S. Federal Tax Return: Typically, you must attach a valid U.S. federal income tax return to your Form W-7. The ITIN is assigned to allow individuals to comply with U.S. tax laws, so the tax return is a primary requirement. There are exceptions, such as for certain individuals applying for tax treaty benefits or specific IRS exceptions that do not require an immediate tax return filing.
- Submit the Application: You can submit your application package in one of three ways:
- Mail: Send your completed Form W-7, supporting documents, and tax return to the IRS address specified in the Form W-7 instructions.
- IRS Taxpayer Assistance Center (TAC): Make an appointment at an IRS TAC that offers ITIN application services. You will need to bring your original documents or certified copies for verification.
- Certified Acceptance Agent (CAA): Apply through a Certified Acceptance Agent (CAA). These agents are individuals or entities authorized by the IRS to help you apply for an ITIN. They can verify your original identification documents and forward your application to the IRS. Using a CAA can be convenient as they often handle the entire process for you, and you don't have to mail your original documents. Some CAAs, like itin.net, specialize in assisting foreign nationals with their ITIN applications and related tax needs.
Processing Times for ITIN Applications
IRS processing times for ITIN applications can vary significantly. Currently, the IRS is experiencing substantial backlogs. Mail-in applications typically take 11 weeks or longer to process. Applications submitted through TACs or CAAs may be processed more quickly, but delays are still common. The IRS will mail you a notice (often CP-565) with your assigned ITIN once your application is approved. It is advisable to apply well in advance of any tax deadlines.
How to Obtain an EIN
Obtaining an EIN is a separate process from obtaining an ITIN and is done directly with the IRS or through authorized third-party services. The primary method for applying for an EIN is by completing Form SS-4, Application for Employer Identification Number.
Online Application (for U.S. Applicants)
If you have a physical U.S. address and a Social Security Number (SSN) or Individual Taxpayer Identification Number (ITIN), you can apply for an EIN online through the IRS website. This is the fastest method, and you can receive your EIN immediately upon completion of the application. However, this online portal is generally not available for applicants without a U.S. address.
Mail or Fax Application (for Foreign Applicants)
Foreign applicants who do not have a U.S. address or SSN/ITIN must typically apply by mail or fax using Form SS-4. You can download Form SS-4 from the IRS website. Complete the form accurately, paying close attention to all required fields. Once completed, you can fax it to the IRS at a designated number or mail it to the appropriate IRS EIN Operation address (which varies by location). This process can take several weeks, sometimes 4 to 5 weeks or longer, for the IRS to process and issue an EIN.
Using a Third-Party Service
Several services can assist foreign nationals in obtaining an EIN. These services often act as intermediaries, helping to complete Form SS-4 and submitting it to the IRS on your behalf. Some services may require you to have an SSN or ITIN to facilitate the process, while others are equipped to handle applications from individuals without either. Using a service can streamline the process, especially if you are unfamiliar with U.S. tax forms or if you lack a U.S. phone number required for the online application. For businesses being formed, services that help with U.S. LLC formation often include EIN application assistance as part of their package.
Processing Times for EIN Applications
For foreign applicants using mail or fax, expect processing times of 4 to 5 weeks or longer. The IRS will issue an EIN confirmation letter (often CP-575) once the EIN is assigned. If you are applying online (which requires a U.S. address), you can receive your EIN immediately.
When an ITIN Might Be Relevant for Business Owners
While an ITIN is not a business number, it is frequently needed by the individuals who own, operate, or are otherwise involved with U.S. businesses. Here are scenarios where a business owner might need an ITIN:
- Personal Investment Income: If you receive dividends, interest, or other investment income from U.S. sources that are not directly tied to your business operations, you may need an ITIN to report this income on your personal U.S. tax return.
- Rental Income: If you own U.S. real estate that generates rental income, you will likely need an ITIN to file Form 1040-NR to report this income and pay U.S. taxes.
- U.S. LLC or Corporation Ownership: If you are a foreign owner of a U.S. LLC or corporation, you might need an ITIN for various personal tax reporting obligations that arise from this ownership, even if the business itself has an EIN.
- Opening Certain Bank Accounts: While most business bank accounts require an EIN, some personal accounts or specialized accounts might be opened by individuals using their ITIN. However, for business purposes, an EIN is almost always the required identifier.
- Tax Treaty Benefits: If you are an individual claiming benefits under a U.S. tax treaty, you will typically need an ITIN to file the necessary forms with the IRS.
Understanding the distinction between an ITIN and an EIN is key to correctly setting up and operating a business in the U.S. as a foreign national. The ITIN is for your personal tax responsibilities, and the EIN is for your business's tax responsibilities.
Common Mistakes and Considerations
When dealing with U.S. tax identification numbers, several common pitfalls can arise, particularly for non-residents:
- Confusing ITIN and EIN: The most frequent error is attempting to use an ITIN where an EIN is required, or vice-versa. This can lead to rejected filings, penalties, and delays in business operations. Remember, an ITIN is for individuals, and an EIN is for businesses.
- Incorrectly Completing Forms: Errors on Form W-7 or Form SS-4 can cause significant delays or outright rejection of your application. Ensure all information is accurate and matches your supporting documents.
- Missing Identification Documents: For Form W-7, failing to provide valid, original, or certified copies of identification documents will result in your application being returned. Passports are the most commonly accepted and recommended document.
- Not Attaching a Tax Return to Form W-7: Most applicants for an ITIN must include a federal income tax return. Forgetting this crucial step is a common reason for delays.
- Applying for an EIN Without a U.S. Business Nexus: While foreign individuals can obtain an EIN, the IRS expects a legitimate business reason. Simply wanting an EIN for personal reasons without a clear business purpose may lead to denial.
- Ignoring State Requirements: While the ITIN and EIN are federal numbers, many states also have their own registration and tax identification requirements for businesses operating within their borders.
Next Steps for Business Owners
If you are a foreign national planning to establish or operate a business in the U.S., here are the typical steps and considerations:
- Determine Business Structure: Decide on the legal structure for your business (e.g., U.S. LLC, corporation, sole proprietorship). Each has different tax and legal implications. Forming an LLC is a popular choice for foreign entrepreneurs due to its flexibility and liability protection. This often involves registering with a state and appointing a registered agent.
- Obtain an EIN: Once your business entity is formed or you have decided on its structure, apply for an EIN using Form SS-4. This is essential for most business operations, including opening bank accounts and hiring employees.
- Open a U.S. Bank Account: With your EIN in hand, you can open a business bank account in the U.S. This is critical for managing business finances separately from personal funds. Banks like Mercury, Relay, or Brex are popular choices for startups and international founders, though requirements can vary. You can learn more about opening a U.S. bank account and the typical documentation needed.
- Obtain an ITIN (if applicable): If you, as an individual owner or operator, have personal U.S. tax obligations (e.g., receiving dividends from your U.S. company, personal investment income), you will need to apply for an ITIN using Form W-7.
- Comply with Tax Filings: Ensure all federal and state tax filings are made on time. This includes business tax returns (using the EIN) and personal tax returns (using your ITIN or SSN). For U.S. LLCs, you may need to file Form 5472 to report transactions between the LLC and its foreign owner, which requires an EIN.
Seeking Assistance
Navigating the U.S. tax system as a non-resident can be complex. Understanding the difference between an ITIN and an EIN is just the first step. For personalized guidance, consider:
- Certified Acceptance Agents (CAAs): For ITIN applications, CAAs can verify your documents and help streamline the process. Services like itin.net specialize in assisting foreign individuals with their ITIN needs and can provide valuable support.
- Tax Professionals: Consult with a U.S. tax advisor or CPA who has experience with non-resident and international taxation. They can advise on the best business structure, tax implications, and ensure compliance.
- Legal Counsel: For complex business formation or legal matters, an attorney specializing in international business law can provide essential guidance.
While the question "what is itin number for business?" is straightforward in its answer – an ITIN is not for businesses – the subsequent steps for foreign nationals establishing a U.S. presence can be intricate. Ensuring you obtain the correct identification numbers (ITIN for individuals, EIN for businesses) and comply with all tax obligations is vital for successful and lawful operation in the United States. For further information on related topics, you can explore the Q&A index or our blog for more insights.