A taxpayer shall make the election allowed under this section by notifying the tax commissioner in writing on or with the taxpayer's net profit return or, if applicable, a timely filed amended net profit return or a timely filed appeal of an assessment. The election applies to the taxable year for which that return or appeal is filed and for all subsequent taxable years, until the taxpayer revokes the election. After the taxpayer makes the initial election, the election applies to every municipal corporation in which the taxpayer conducts business.
Nothing in this section prohibits a taxpayer from making a new election under this section after properly revoking a prior election.
R.C. § 718.821