документальная проверка(conducted by an IRS tax examiner WITHIN IRS offices, as opposed to field or on-site audits conducted on the premises of the taxpayer being audited Vic_Ber)
выездная налоговая проверка(A field audit is a comprehensive tax audit conducted by the Internal Revenue Service (IRS) at either your home, place of business or accountants office.'More)
камеральная налоговая проверка(The IRS manages audits either by mail or through an in-person interview to review your records. The interview may be at an IRS office (office audit) or at the taxpayer’s home, place of business, or accountant’s office (field audit).'More)