Clarification to Section 6411 Regulations

This document contains final regulations amending existing regulations under section 6411 of the Internal Revenue Code (Code) relating to the computation and allowance of the tentative carryback adjustment. These regulations adopt without change the rules of the temporary regulations, which clarify that, for purposes of allowing a tentative adjustment, the IRS may credit or reduce the tentative adjustment by both assessed and certain unassessed tax liabilities. These final regulations affect taxpayers that file an application for a tentative carryback allowance.