(a) The owner of property taxable under this chapter is allowed a credit against the tax due under this chapter for contributions of cash or equipment accepted for

(1) direct instruction, research, and educational support purposes, including library and museum acquisitions, and contributions to endowment, by an Alaska university foundation or by a nonprofit, public or private, Alaska two-year or four-year college accredited by a national or regional accreditation association;

(2) secondary school level vocational education courses, programs, and facilities by a school district in the state;

(3) vocational education courses, programs, and facilities by a state-operated vocational technical education and training school;

(4) a facility by a nonprofit, public or private, Alaska two-year or four-year college accredited by a national or regional accreditation association;

(5) Alaska Native cultural or heritage programs and educational support, including mentoring and tutoring, provided by a nonprofit agency for public school staff and for students who are in grades kindergarten through 12 in the state;

(6) education, research, rehabilitation, and facilities by an institution that is located in the state and that qualifies as a coastal ecosystem learning center under the Coastal America Partnership established by the federal government; and

(7) the Alaska higher education investment fund under AS 37.14.750.

(b) The amount of the credit is

(1) 50 percent of contributions of not more than $100,000;

(2) 75 percent of the next $200,000 of contributions; and

(3) 50 percent of the amount of contributions that exceed $300,000.

(c) Each public college and university shall include in its annual operating budget request contributions received and how the contributions were used.

(d) A contribution claimed as a credit under this section may not

(1) be the basis for a credit claimed under another provision of this title; and

(2) when combined with contributions that are the basis for credits taken during the taxpayer's tax year under AS 21.96.070, AS 43.20.014, AS 43.55.019, AS 43.65.018, AS 43.75.018, or AS 43.77.045, result in the total amount of credits exceeding $1,000,000; if the taxpayer is a member of an affiliated group, then the total amount of credits may not exceed $1,000,000 for the affiliated group; in this paragraph, “affiliated group” has the meaning given in AS 43.20.145.

(e) The credit under this section may not reduce a person's tax liability under this chapter to below zero for any tax year. An unused credit or portion of a credit not used under this section for a tax year may not be sold, traded, transferred, or applied in a subsequent tax year.

(f) To qualify for a credit under this section, equipment must be appraised consistent with regulations adopted by the department to determine the value of the contribution for purposes of this section.

(g) In this section,

(1) “school district” has the meaning given in AS 43.20.014;

(2) “vocational education” has the meaning given in AS 43.20.014.