§ 442. Change of annual accounting period
If a taxpayer changes his annual accounting period, the new accounting period shall become the taxpayer’s taxable year only if the change is approved by the Secretary. For purposes of this subtitle, if a taxpayer to whom section
441
(g) applies adopts an annual accounting period (as defined in section
441
(c)) other than a calendar year, the taxpayer shall be treated as having changed his annual accounting period.