Code of Federal Regulations Title 26. Internal Revenue § 26.1.1313(a)–2 Closing agreement as a determination

A determination may take the form of a closing agreement authorized by section 7121. Such an agreement may relate to the total tax liability of the taxpayer for a particular taxable year or years or to one or more separate items affecting such liability. A closing agreement becomes final for the purpose of this section on the date of its approval by the Commissioner.