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A Tax Identification Number or TIN is an identifying number used for tax purposes in the United States. It may be assigned by the Social Security Administration or by the IRS.

A business need a Federal Tax Identification Number or Employer Tax Identification Number, so that they can maintain their own image or entity in the market. It is to be noted that, the tax ID number could not be transfer in case of the transferring of any business. If the structure or ownership would be changed then a new tax ID number is required for the business. But above all you have to collect the relevant information to get an EIN.

Need a Copy of Past Tax Return?

Taxpayers have two easy and convenient options for getting copies of their federal tax return information — tax return transcripts and tax account transcripts — by phone or by mail.

If you need a photocopy of a previously processed tax return and attachments, complete Form 4506, Request for Copy of Tax Form, and mail it to the IRS address listed on the form for your area. Copies are generally available for the current and past 6 years.