Learn About Business EIN Numbers

What Is an EIN and Why Businesses Need One

An Employer Identification Number, or EIN, is a nine-digit code that the Internal Revenue Service (IRS) assigns to businesses. The format looks like this: XX-XXXXXXX. Think of it as a Social Security number for your business. The IRS uses this number to track a company's tax records, employee information, and other business activities.

Free Guide to Driver License Renewal Requirements →

The EIN serves several important purposes. It identifies your business to the IRS and other government agencies. Banks use it to set up business bank accounts. The Social Security Administration uses it to track employee wage information. State tax agencies also use EINs for state tax purposes. If you hire employees, you must have an EIN to report their wages and withhold taxes.

The IRS issues roughly 2 million new EINs each year. This shows how common they are for businesses of all sizes. Even sole proprietors without employees sometimes obtain an EIN to keep their personal and business finances separate.

Here are the main reasons a business needs an EIN:

• Hiring and paying employees
• Opening a business bank account
• Filing business tax returns
• Obtaining business licenses and permits
• Getting a business credit line or loan
• Filing certain business legal documents

Practical Takeaway: If you operate any kind of business structure beyond a sole proprietorship, or if you plan to hire employees, you will likely need an EIN. Understanding what an EIN is and how it functions is the first step toward meeting your business's identification requirements.

Understanding EIN Requirements by Business Type

Different types of businesses have different EIN requirements. The IRS rules depend on how your business is structured and whether you have employees. Understanding which category your business falls into helps clarify whether you need an EIN.

Free Guide to Printing Envelopes in Word →

Sole proprietors without employees typically do not need an EIN. They can use their personal Social Security number for tax purposes. However, a sole proprietor may still choose to obtain an EIN to keep business and personal finances separate. This separation can make accounting easier and provide additional privacy.

Partnerships must obtain an EIN, regardless of size or number of employees. The IRS considers partnerships as separate tax entities, so they need their own identification number for tax reporting.

Corporations and limited liability companies (LLCs) must obtain an EIN. These business structures are legally separate from their owners, so the IRS assigns them their own identification numbers. This applies whether the corporation or LLC has employees.

If you are a sole proprietor who hires employees, you must obtain an EIN. The EIN is necessary for reporting employee wages, withholding taxes, and filing employment tax returns. Employers must have an EIN even if they hire just one part-time employee.

Non-profit organizations must obtain an EINs. Tax-exempt organizations file different tax forms than for-profit businesses, and the IRS tracks them using EINs.

Here is a breakdown of common business types and EIN requirements:

• Sole proprietorship (no employees): Not required, but may be obtained voluntarily
• Sole proprietorship (with employees): Required
• Partnership: Required
• Corporation: Required
• Limited Liability Company (LLC): Required in most cases
• Non-profit organization: Required
• Trust: May be required depending on the trust type
• Estate: May be required for estate tax purposes

Practical Takeaway: Review your specific business structure to determine if an EIN is required. Even if not required, obtaining one can provide benefits like separating personal and business finances and protecting your personal Social Security number from public disclosure on business documents.

How to Obtain an EIN from the IRS

The IRS offers several methods for obtaining an EIN. The most common and quickest method is to apply online through the IRS website. The online application process takes about 15 minutes and provides your EIN immediately upon completion. This method is free and available to businesses located in the United States.

Learn About Document Management Resources →

To use the online application process, you will need certain information about your business. You should have your Social Security number or Individual Taxpayer Identification Number ready. You will also need basic information about your business, such as the business name, address, type of business structure, and the reason you are obtaining an EIN.

The IRS website walks you through each step of the online process. You answer questions about your business using a series of screens. The system confirms your answers and generates your EIN right away. You receive confirmation on screen and can print it for your records.

If you prefer not to apply online, you have other options. You can mail Form SS-4 to the IRS. The mailing process takes about four weeks. You can also fax Form SS-4 to the IRS, which typically takes about one week. International businesses can also telephone the IRS to obtain an EIN.

Here are the basic steps for obtaining an EIN online:

• Visit the IRS website at irs.gov
• Find the EIN application tool
• Enter your business information
• Answer questions about your business structure and purpose
• Review your information for accuracy
• Submit your application
• Receive your EIN immediately
• Print your confirmation notice

Regardless of which method you use, the information you provide must be accurate. The IRS cross-checks this information with other databases. If there are discrepancies, your application may be delayed or rejected.

Practical Takeaway: The online method is the fastest way to obtain an EIN, taking only about 15 minutes and providing your number immediately. Have your business details and personal identification information ready before you start the application process.

Using and Managing Your EIN Throughout Your Business Life

Once you receive your EIN, you will use it throughout your business's life. It appears on nearly all business documents and tax forms. Your bank will ask for your EIN when you open a business account. Your accountant will need it for tax preparation. Vendors and clients may request it as well.

Free Guide to Moving Data From Android to iPhone →

You should keep your EIN documentation in a safe place. The IRS provides a confirmation notice when you obtain your EIN. This notice contains your EIN and other details about your business. Keep this document with your important business records. You can request replacement copies if you lose it.

Your EIN remains the same throughout your business's life, even if you change your business name or address. The IRS does not reissue EINs. If your business circumstances change, you do not get a new EIN. For example, if you change from a sole proprietorship to an LLC, you may need to obtain an EIN if you did not have one before, but an existing EIN stays with your business.

When reporting to the IRS, always use the same EIN consistently. The IRS tracks business records by EIN. Using different numbers or variations of your EIN can create confusion in your IRS file and cause problems with your tax records.

You will use your EIN on several types of documents and situations:

• Business tax returns (Form 1120 for corporations, Form 1065 for partnerships, etc.)
• Employment tax returns (Form 941 for quarterly payroll taxes)
• Annual wage and tax statement filing (Form W-3 and W-2s)
• Unemployment insurance reports
• Business loan applications
• Business bank accounts
• Business credit card applications
• Vendor accounts and purchase orders

If your business closes or dissolves, you do not need to cancel your EIN with the