Sec. 8. (a) If the amount of the credit allowed under section 6 of this chapter for a taxpayer in a taxable year exceeds the taxpayer's state income tax liability for that taxable year, the taxpayer may carry the excess credit over for a period not to exceed the taxpayer's following ten (10) taxable years. The amount of the credit carryover from a taxable year must be reduced to the extent that the carryover is used by the taxpayer to obtain a credit under this chapter for any subsequent taxable year. A taxpayer is not entitled to a carryback or a refund of any unused credit amount.
(b) A taxpayer may not assign any part of a credit to which the taxpayer is entitled under this chapter.