Audit Envelope Are You Prepared on white paper an yellow envelope holding by human handsWhen a tax return has been selected for office examination, generally the examination of the return will be conducted at the office of the IRS.  Normally a taxpayer will find an office examination has begun when he or she has received a letter or telephone call from the IRS informing him of such examination and that the IRS wants further records and information. Returns selected for office examination present issues which require some analysis and judgment in addition to verification of records.