(1) Except as otherwise provided in subsection (1.5) of this section, no decision on any petition regarding abatement or refund of taxes, as provided for in section 39-10-114, shall be made by the board of county commissioners unless a hearing is had thereon, at which hearing the assessor and the taxpayer shall have the opportunity to be present. The board may appoint independent referees who are experienced in property valuation to conduct the hearing on behalf of the board, to make findings, and to submit recommendations to the board for its final decision.(1.5) Upon authorization by the board of county commissioners, the assessor may review petitions for abatement or refund and settle by written mutual agreement any such petition for abatement or refund in an amount of ten thousand dollars or less per tract, parcel, or lot of land or per schedule of personal property. Any abatement or refund agreed upon and settled pursuant to this subsection (1.5) shall not be subject to the requirements of subsection (1) of this section.(1.7) Every petition for abatement or refund filed pursuant to section 39-10-114 shall be acted upon pursuant to the provisions of this section by the board of county commissioners or the assessor, as appropriate, within six months of the date of filing such petition.(2)(a) Whenever any abatement or refund in an amount of ten thousand dollars or less is recommended by the board of county commissioners, the board shall order the abatement of taxes pro rata for all levies applicable to such property, or, in the case of a refund, the board shall order the refund of taxes pro rata by all jurisdictions receiving payment thereof.(b) Whenever any abatement or refund in an amount of ten thousand dollars or less has been agreed upon and settled by the assessor pursuant to subsection (1.5) of this section, the assessor shall order the abatement of taxes pro rata for all levies applicable to such property, or, in the case of a refund, the assessor shall order the refund of taxes pro rata by all jurisdictions receiving payment thereof.(3) Whenever any abatement or refund in an amount in excess of ten thousand dollars is recommended by the board of county commissioners, two copies of an application therefor, reciting the amount of such abatement or refund and the grounds upon which it should be allowed, shall be submitted to the administrator for review pursuant to section 39-2-116. If an application is approved, the board of county commissioners shall order the abatement of taxes pro rata for all levies applicable to such property, or, in the case of a refund, the board of county commissioners shall order the refund of taxes pro rata by all jurisdictions receiving payment thereof.(4) (Deleted by amendment, L. 91, p. 1962, § 2, effective June 5, 1991.)(5)(a) If a hearing is required pursuant to subsection (1) of this section, the board of county commissioners shall provide at least seven days' notice of the scheduled hearing on a petition for abatement and refund of taxes to the person signing such petition and the taxpayer if the taxpayer did not sign the petition. Except as authorized in paragraph (b) of this subsection (5), notice shall be provided by sending to such person through the United States mail notification of the date, time, and place of the hearing.(b) A board of county commissioners may authorize by resolution a person required to be notified by paragraph (a) of this subsection (5) or such person's agent to elect to receive the notice by fax or electronic mail at a phone number or electronic mail address supplied by such person. If no election is made by such person, the board of county commissioners shall mail the required notice.(6) Notwithstanding any law to the contrary, for taxes levied on and after January 1, 1990, a taxpayer may file a petition for abatement or refund of taxes levied on property if the valuation of such property was the subject of an arbitration hearing pursuant to section 39-8-108.5 and the arbitrator presiding over such hearing failed to deliver a decision to the taxpayer prior to the beginning date of the period during which the assessor sits to hear all objections and protests concerning the valuation of such property in the year following the year in which such arbitration hearing was held.Amended by 2016 Ch. 280, § 1, eff. 6/10/2016.L. 64: R&RE, p. 679, § 1. C.R.S. 1963: § 137-1-13. L. 70: p. 381, § 13. L. 77: Entire section amended, p. 1733, § 6, effective June 20. L. 81: Entire section amended, p. 1837, § 1, effective 1/1/1982. L. 87: Entire section amended, p. 1397, § 1, effective May 6. L. 88: (1) to (3) amended, pp. 1290, 1294, §§ 23, 27, effective May 23. L. 90: (2) and (3) amended, p. 1703, § 38, effective June 9. L. 91: (1) and (4) amended and (5) and (6) added, p. 1962, § 2, effective June 5. L. 92: (1), (2), (5), and (6) amended and (1.5) and (1.7) added, p. 2205, § 1, effective June 3. L. 93: (1) amended, p. 1744, § 3, effective July 1. L. 96: (3) amended, p. 649, § 1, effective May 1. L. 2003: (1) amended, p. 1347, § 1, effective August 6. L. 2008: (2) and (3) amended, p. 1246, § 5, effective August 5. L. 2010: (1.5), (2), and (3) amended, (HB 10 -1117), ch. 195, p. 841, § 1, effective August 11. L. 2016: (5) amended, (SB 16-172), ch. 280, p. 1148, § 1, effective June 10. For approval of tax abatements or refunds by the property tax administrator, see § 39-2-116 ; for further restrictions relating to the abatement, refund, and cancellation of taxes, see § 39-10-114 .