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The IRS will not reissue the CP575. This is the notice that the IRS issues when you are assigned an EIN. If you lost your original notice and you need confirmation of your EIN, you can call the IRS business help line at 1-***-***-****. Inform them that you need a confirmation of your EIN.
The IRS will send you a 147C letter that may be used instead of the CP575 notice. You may send a written request for the letter 147C, however, it would be faster to request the letter via the phone.
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