First, determine whether you need to find your Social Security Number (SSN), Employer Identification Number (EIN) or Individual Taxpayer ID Number (ITIN). Any of these numbers will be listed on your tax returns, but you may need to call the IRS or the Social Security Administration to ask...
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The Employer Identification Number (EIN), also known as the Federal Employer Identification Number (FEIN) or the Taxpayer Identification Number (TIN), is a unique nine-digit number assigned by the Internal Revenue Service (IRS) (format: XX-XXXXXXXXX) to business entities operating in the United...