(b) The taxpayer may use the credit provided in subsection (4) of section 77-5725 to reduce the taxpayer's income tax withholding employer or payor tax liability under section 77-2756 or 77-2757 to the extent such liability is attributable to the number of new employees at the project, excluding any compensation in excess of one million dollars paid to any one employee during the year. The taxpayer may use the credit provided in subsection (5) of section 77-5725 to reduce the taxpayer's income tax withholding employer or payor tax liability under section 77-2756 or 77-2757 to the extent such liability is attributable to all employees employed at the project, other than base-year employees and excluding any compensation in excess of one million dollars paid to any one employee during the year. To the extent of the credit used, such withholding shall not constitute public funds or state tax revenue and shall not constitute a trust fund or be owned by the state. The use by the taxpayer of the credit shall not change the amount that otherwise would be reported by the taxpayer to the employee under section 77-2754 as income tax withheld and shall not reduce the amount that otherwise would be allowed by the state as a refundable credit on an employee's income tax return as income tax withheld under section 77-2755. For a tier 1, tier 2, tier 3, or tier 4 project, the amount of credits used against income tax withholding shall not exceed the withholding attributable to new employees employed at the project, excluding any compensation in excess of one million dollars paid to any one employee during the year.
For a tier 6 project, the amount of credits used against income tax withholding shall not exceed the withholding attributable to all employees employed at the project, other than base-year employees and excluding any compensation in excess of one million dollars paid to any one employee during the year.
If the amount of credit used by the taxpayer against income tax withholding exceeds this amount, the excess withholding shall be returned to the Department of Revenue in the manner provided in section 77-2756, such excess amount returned shall be considered unused, and the amount of unused credits may be used as otherwise permitted in this section or shall carry over to the extent authorized in subdivision (1)(e) of this section.