W. Va. Code § 7-22-7a
(a) Recalculation of base tax revenue amount. --
(3) Effective date. –
(b) Base tax revenue amount carry forward, recovery, recovery limitation.
(c) Limitation on changes to base tax revenue amount.
Except pursuant to a lawful recalculation of the base tax revenue amount under this section, or a lawful modification of geographical area included in a district under this article, the base tax revenue amount may not be modified, increased or decreased by reason of any change in law or fact relating to the consumers sales and service tax and use tax or to the base tax revenue amount determined under this article. No current, retrospective or prospective tax reporting anomaly, permutation of tax filing configuration, failure of tax payment, failure of tax filing, tax adjustment, claim for a tax refund, issuance of a tax refund, entitlement to a tax refund, claim for a tax credit, issuance of a tax credit, or entitlement to a tax credit, relating to, or affecting, consumers sales and service tax or use tax paid or payable in the district or special district excise tax paid or payable in the district, either prior to the date upon which the base tax revenue amount was determined under this article or subsequent to the date upon which the base tax revenue amount was determined under this article, changes in any way the base tax revenue amount.
(d) Sharing of District Information.
(1) Notwithstanding the provisions of section five-d, article ten, chapter eleven of this code: