EIN Tax ID: What It Is, Who Needs One, and How to Get It

If you are asking what is an EIN, it is a nine-digit number assigned by the Internal Revenue Service to identify certain businesses and other entities for tax purposes.

The IRS uses an EIN to identify a business when it files tax returns, reports employment taxes, and handles other federal tax matters.

An EIN is similar to a Social Security number in the way it identifies an entity, but it is used for business and other qualifying entities rather than as an individual’s personal tax number.

Businesses should keep their EIN records secure and use the number only for appropriate business and tax purposes.

The EIN number meaning is simply Employer Identification Number. The IRS assigns this number to businesses and other qualifying entities. It helps the government identify the entity for federal tax filing and reporting.

An EIN may be required for corporations, partnerships, certain LLCs, tax-exempt organizations, estates, trusts, and businesses with employees. The number stays connected to the business entity. If important information about the responsible party changes, the business may need to notify the IRS.

A federal tax ID number is a general term for a taxpayer identification number used for federal tax purposes. An EIN is one type of federal taxpayer identification number.

For businesses, an EIN is commonly the number used to identify the business with the IRS.

An individual’s Social Security number and Individual Taxpayer Identification Number are also taxpayer identification numbers, but they serve different purposes.

This is why the terms “EIN” and “federal tax ID” are often used together when discussing business taxes.

The question of EIN vs tax ID can be confusing because the terms are often used interchangeably.

An EIN is a specific type of tax identification number issued by the IRS. “Tax ID” is a broader term that can refer to different types of taxpayer identification numbers.

For a business, an EIN is generally the federal tax ID used to identify the entity for applicable federal tax purposes.

The type of taxpayer identification number you need depends on whether you are applying as an individual, business, trust, estate, or another entity.

If you are wondering, do I need an EIN for my LLC, the answer depends on how your LLC is owned and taxed and what activities it conducts.

A single-member LLC that is treated as a disregarded entity for federal tax purposes generally does not need a separate EIN if it has no employees and is not subject to certain excise taxes. However, it may still obtain an EIN for banking or state tax purposes.

A multi-member LLC generally needs its own EIN. An LLC with employees also generally needs an EIN for employment tax purposes.

A single-member LLC that elects to be taxed as a corporation or S corporation also needs an EIN.

Because LLC tax treatment can vary, review your specific situation before deciding whether an EIN is required.

The IRS also allows businesses that do not have a federal requirement for an EIN to request one for purposes such as banking or certain state tax requirements.

The exact requirements depend on the business structure and activities.

Having an EIN can also help separate business tax identification from the owner’s personal Social Security number when the business is eligible to use an EIN.

You can apply for an EIN directly through the IRS.

The IRS recommends applying online when eligible. Applicants can also apply by fax or mail, while certain international applicants can apply by telephone.

You generally need information about the business and its responsible party before completing the application.

The IRS uses Form SS-4, Application for Employer Identification Number, for EIN applications.

Form SS-4 is the IRS application used to request an EIN.

The form asks for information such as the legal name of the entity, business address, responsible party, entity type, and other details about the business.

The information should match your business formation records and other official documents.

An incorrect legal name, entity classification, or responsible-party detail can create problems with the application or later tax filings.

The responsible party is the person who controls or manages the entity’s funds, assets, or business activities.

For most businesses, this is an owner, principal officer, general partner, grantor, or another person who has the authority to control the organization.

The IRS generally requires the responsible party to be an individual rather than another business entity, except in certain situations.

If the responsible party changes, the business may need to notify the IRS.

Providing accurate information can make the application process easier and help keep your IRS records consistent.

A new business may need an EIN as part of its setup.

The timing depends on the business structure and what the business plans to do. For example, a company that plans to hire employees will generally need an EIN for employment tax reporting.

Some businesses may also obtain an EIN even when it is not strictly required for federal income tax purposes. An EIN can be useful for banking and certain state requirements.

You may also need an EIN after your business has already been formed.

Changes in business structure can affect your EIN requirements. For example, an LLC that changes its federal tax classification may need a new EIN depending on the circumstances.

If you are unsure whether an existing business needs a new EIN, review the IRS requirements before applying for another number.

The IRS generally limits EIN issuance to one EIN per responsible party per day.

An EIN identifies a business or other qualifying entity, while an SSN identifies an individual.

Business owners may sometimes use an SSN for federal tax reporting when a business does not require a separate EIN. However, businesses that are required to have an EIN should use the EIN for applicable federal tax matters.

Using the appropriate number helps keep personal and business tax information organized.