Understanding an EIN
Just as the Social Security Number (SSN) is used to identify the individual residents of the United States, the Employer Identification Number (EIN) is issued to identify the business entities in the country. The EIN is a unique nine-digit number issued by the IRS and includes information about which state in which the corporation is registered.
The digits of an EIN are formatted as follows: XX-XXXXXXX. The IRS uses the EIN to identify taxpayers that are required to file various business tax returns.
Business entities looking to operate in the U.S. must apply for an EIN by phone, online, fax, or by mail. All forms of businesses can apply for and be issued EINs, entities such as limited liability companies (LLCs), sole proprietorships, non-profit organizations, government agencies, S corporations, partnerships, estates, and trusts, etc. Furthermore, the IRS is not biased towards the size of the company as a company with only one employee is as eligible for an EIN as a multinational corporation.
Once you get the EIN for your business, you cannot cancel it anymore.
Read to obtain one? use the link above to start the process.