Employer Identification Number: What You Need to Know

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An Employer Identification Number, or EIN, is a unique nine-digit code assigned to your business by the IRS.

It's a crucial step in setting up your business, as it allows you to hire employees, open a business bank account, and file taxes.

Your EIN is used to identify your business for tax purposes, and it's often required for business loans and credit applications.

You can apply for an EIN online, by mail, or by fax, and it's usually free.

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Who Needs an EIN

You need an Employer Identification Number (EIN) if you have employees, which is a no-brainer. This is a requirement for any business that hires staff.

If you'll need to pay employment, excise, or alcohol, tobacco, and firearms taxes, you'll also need an EIN. These taxes can be complex, so it's good to have a clear understanding of your obligations.

You'll also need an EIN if you withhold taxes on income, other than wages, paid to a non-resident alien. This is an important consideration for businesses that work with international clients.

For another approach, see: Ein Employer Identification Number

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The following types of entities also require an EIN: partnership, limited liability company (LLC), corporation, tax-exempt organization, estate, trust (except certain grantor-owned revocable trusts), retirement plan or individual retirement account (IRA), real estate mortgage investment conduit, and farmers' cooperative.

Here are some specific examples of when you'll need an EIN:

Applying for an EIN

Applying for an EIN is a straightforward process that can be done online, by fax, mail, or phone.

You can apply online for free, and get your EIN immediately. This is the fastest way to get an EIN, and it's available 24/7.

To apply online, you'll need to fill out Form SS-4, which is available on the IRS website. You'll need to provide information such as the name of your company's principal officer and their personal taxpayer identification number.

The IRS requires that you provide the type of entity, the reasons for applying, the start or acquisition date, and the principal industry of business.

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If you're not in the U.S. but will be doing business here, you can apply by phone. You can also apply by fax or mail, but it will take longer – about 4 weeks.

Here are the ways to apply for an EIN:

  • Apply online, free, and get your EIN immediately.
  • Fax Form SS-4 to 855-641-6935, and get a cover sheet with your EIN back in 4 business days.
  • Mail Form SS-4 to the IRS, and get your EIN in about 4 weeks.
  • Apply by phone, if you're not in the U.S. but will be doing business here.

EIN Basics

An Employer Identification Number (EIN) is a unique nine-digit number assigned to a business by the Internal Revenue Service (IRS). It's used to report taxes and for legal purposes, such as filing for contracts or loans.

To get an EIN, a business needs to meet certain criteria, which includes having employees, operating as a corporation or partnership, and filing employment, excise, or alcohol, tobacco, and firearms tax returns.

Some businesses may also need an EIN even if they don't have employees, such as those opening a business bank account or applying for loans. The EIN is formatted as XX-XXXXXXX, and it's used to identify a business in government documents.

Here are some key uses of an EIN:

  • Opening a business bank account
  • Applying for business licenses and permits
  • Setting up payroll
  • Purchasing business insurance
  • Applying for loans

International Applicants

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If your principal place of business is outside the U.S., you can apply for an EIN by phone at 267-941-1099 Monday – Friday, 6 a.m. to 11 p.m. Eastern time.

You can also submit Form SS-4 by fax, but you'll need to use a different number depending on your location: 855-215-1627 within the U.S. or 304-707-9471 outside the U.S.

If you prefer to mail your application, send it to Internal Revenue Service, Attn: EIN International Operation, Cincinnati, OH 45999.

To apply by phone, fax, or mail, you'll need to fill out Form SS-4, which is available on the IRS website.

How to Find Yourself

If you're having trouble finding your EIN, don't panic! You can try several methods to locate it.

You can start by locating the computer-generated notice the IRS issued when you applied for your EIN. This notice should have your EIN on it.

If you can't find the notice, contact any bank or agency that you've submitted business-related documents or applications to. They may have a copy of your EIN on file.

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Alternatively, you can reference a previously filed tax return from your business. Your EIN should be listed on the return.

If all else fails, you can call the IRS' Business & Specialty Tax Line at (800) 829-4933. You'll need to answer some identifying information to verify that you're the owner of the business or an authorized person.

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What Is an EIN?

An EIN is a unique nine-digit number assigned to a business by the IRS. It's essentially the business equivalent of a Social Security Number (SSN).

The EIN is used to report taxes and for legal purposes, such as filing for contracts or loans. This is because the IRS uses EINs to identify businesses in tax filings, making it a crucial part of a business's identity.

EINs are formatted as XX-XXXXXXX, and as of 2001, the two-number prefix no longer indicates the geographic location of the business, but rather which IRS campus assigned the number.

Here are some key uses of an EIN:

  • Opening a business bank account
  • Applying for business licenses and permits
  • Setting up payroll
  • Purchasing business insurance
  • Applying for loans

All businesses with payroll taxes and employees are required to have an EIN, which includes corporations, limited liability companies (LLCs), trusts, and nonprofits.

EIN Application Process

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Applying for an Employer Identification Number (EIN) is a straightforward process that can be completed in various ways.

You can get an EIN for free, direct from the IRS, by applying online.

To apply online, you must have a business located in the U.S. or U.S. territories.

The online application process is easy and uncomplicated, with your EIN assigned immediately after your information is validated.

You can also apply for an EIN by faxing Form SS-4, Application for Employer Identification Number, to 855-641-6935.

If you apply by fax, the IRS will fax a cover sheet with your EIN back to you in 4 business days.

Alternatively, you can mail Form SS-4 to the IRS, but this method takes about 4 weeks to receive your EIN.

To fill out Form SS-4, you'll need to include certain information, such as the name of your company's principal officer and their personal taxpayer identification number.

You'll also need to provide information about the type of entity, the reasons for applying, the start or acquisition date, and the principal industry of business.

Here are the options for applying for an EIN:

  • Apply online
  • Fax Form SS-4 to 855-641-6935
  • Mail Form SS-4 to the IRS

EIN Responsibilities

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As a business owner, it's essential to understand your EIN responsibilities. You must use your EIN to file taxes with the IRS, both for employment taxes and for business taxes.

The IRS requires you to report your EIN on all tax returns, including the Form 941 for employment taxes and the Form 1040 for business taxes. You must also report your EIN on any tax forms related to your business, such as the Form W-2 for employee wages.

You're responsible for keeping your EIN confidential and secure, as it's a sensitive piece of information. This means not sharing it with anyone who doesn't need to know it, and being cautious when using it online.

The IRS will use your EIN to identify your business and track your tax history. This information will be used to determine your tax liability and ensure you're in compliance with all tax laws and regulations.

EIN vs Other IDs

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An EIN is just one of several types of Taxpayer Identification Numbers (TINs) the IRS uses to identify persons or entities in tax filings. Others include SSNs, ITINs, ATINs, and PTINs.

For individuals, the TIN is usually their Social Security number, but for corporations, partnerships, trusts, and estates, it's typically an EIN. This is because an EIN serves a similar administrative purpose as a SSN, but for a business entity rather than an individual person.

Here are some of the main types of TINs and their meanings:

Comparison to SSNs

The EIN serves a similar administrative purpose as a SSN, but for a business entity rather than an individual person. An SSN may be used as a business Tax ID for a sole proprietorship without applying for a separate EIN. Unlike a SSN, an EIN is not considered sensitive information and is freely distributed by many businesses. In some cases, a business may use their SSN as a Tax ID, but an EIN is required to hire employees or establish business credit.

vs TIN

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An EIN is one of several types of Taxpayer Identification Numbers (TINs) the IRS uses to identify persons or entities in tax filings. Others include SSNs, ITINs, ATINs, and PTINs.

An EIN is issued to employers, such as LLCs, nonprofits, or corporations, as well as some sole proprietorships. This makes it a crucial ID for businesses.

For individuals, the TIN is usually their Social Security number, which is issued by the Social Security Administration. This is the most common type of TIN.

An ITIN, or Individual Taxpayer Identification Number, is available for certain nonresident and resident aliens, their spouses, and dependents who can't get an SSN. This is a great option for those who need to file taxes but don't qualify for an SSN.

An ATIN, or Adoption Taxpayer Identification Number, is issued to individuals who are in the process of legally adopting a child but who can’t get an SSN for that child in time to file their tax return. This is a temporary solution until the child gets an SSN.

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Here are the different types of TINs and their meanings:

Tax-Exempt Organizations

To get an Employer Identification Number (EIN) as a tax-exempt organization, you need to apply separately for tax-exempt status from the IRS.

First, understand that having an EIN doesn't automatically grant tax-exempt status. You must apply for it separately.

Before applying for an EIN, it's essential to check if your organization has been formed legally. This step is crucial to avoid any issues down the line.

If your organization has failed to file necessary returns or notices for three consecutive years, its tax-exempt status can be automatically revoked. This three-year period starts from when your organization is legally formed.

Each chapter of a national non-profit organization must have its own EIN. However, the central organization can file for a group tax exemption.

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EIN Replacement and Cancellation

If you need to replace your Employer Identification Number (EIN), it's usually because you've changed your business's ownership or structure. This can happen when you purchase or become a subsidiary of another business, or if there's a change to the ownership structure of your business.

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You can't simply cancel your EIN, but you can deactivate it if you no longer need it. If you're not sure what to do, try looking for your EIN on past business tax returns, or contact the bank that has your business account.

If you still can't find your EIN, you can call the IRS at 800-829-4933 to have it verified over the phone. Make sure to have your business information ready, including your trust name, sponsor's or trustee's address, and contact information.

  • Reasons for replacing an EIN: change in ownership or structure
  • Reasons for deactivating an EIN: no longer needed

Consequences of Losing or Misplacing Your

Losing or misplacing your EIN can be a real headache, especially if you're trying to conduct business or file taxes. You can find your EIN on the issuing notice sent to you by the IRS.

If you can't find your EIN, you can try checking your tax returns or contacting the financial institution where you do your day-to-day banking. They may be able to provide it for you.

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If all else fails, you can contact the IRS' Business & Specialty Tax Line at 1-800-829-4933. Just be sure to have some identifying information on hand before you call.

Having an EIN is crucial for businesses with employees, as it's required for tax returns and withholding taxes on income. If you're not sure whether your business needs an EIN, check if you have employees or file certain tax returns.

Expiration/Cancellation

EINs do not expire, but a business may choose to cancel or change its current EIN for specific reasons, such as purchasing or becoming a subsidiary of another business, or changes to the ownership structure.

A change of business location or business name doesn't require getting a new EIN, but the change still needs to be reported to the IRS. You can report a change of business address using IRS Form 8822 B and a change of business structure with an IRS Form 8832.

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An EIN assigned to a business will automatically replace an existing EIN, and the old EIN will become inactive and not be reissued.

If you no longer need your EIN, it can't be canceled, but it can be deactivated.

You can find a missing EIN by checking the notice issued when you applied for it, contacting the bank that has your business account, checking with agencies where you've applied for state or local licenses, or looking on past business tax returns.

If you still can't find it, call the IRS at 800-829-4933 to verify your identity and get the number over the phone if you're authorized to receive it.

A business entity should have only one EIN. If you have more than one EIN and aren't sure which to use, call the Business and Specialty Tax Line at 800-829-4933 for help.

Here are the ways to report a duplicate EIN:

  • Fax to 855-214-7520
  • Mail to Internal Revenue Service, Attn: EP Entity, M/S 6273, Ogden, UT 84201
  • Deliver to Internal Revenue Service, 1973 N Rulon White Blvd., Attn: EP Entity, M/S 6273, Ogden, UT 84404

Frequently Asked Questions

How do I find my employer's ID number?

Find your employer's ID number on your W-2 form in box b, or on your 1099 form below the Payer's name and address. Check the left side of the form for the Employer Identification Number (EIN)

Can I use my SSN as my EIN?

No, you cannot use your SSN as your EIN, as they serve different purposes and are used for distinct tax and business purposes. Use your EIN for business tax returns and your SSN for individual tax returns.

How do I find my EIN number?

Check your original EIN notice, business account statements, state and local license applications, and past tax returns to locate your EIN number

Timothy Gutkowski-Stoltenberg

Senior Writer

Timothy Gutkowski-Stoltenberg is a seasoned writer with a passion for crafting engaging content. With a keen eye for detail and a knack for storytelling, he has established himself as a versatile and reliable voice in the industry. His writing portfolio showcases a breadth of expertise, with a particular focus on the freight market trends.

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