Notwithstanding the provisions of section sixteen of this article to the contrary, no credit may be claimed on any declaration of estimated tax filed for such taxable year prior to the first day of July of such taxable year. Such credit may be claimed on a declaration or amended declaration filed on or after such date, but only if the amount certified will not be recovered by application of the tax credit allowed by article thirteen-g of this chapter. In such event, only that amount not recovered by the tax credit allowed by article thirteen-g of this chapter may be considered or taken as a credit when estimating the tax due under this article. In no event may the eligible taxpayer recover more than one hundred percent of its revenue deficiency as certified by the public service commission.
W. Va. Code § 11-24-11a