(1) Qualified homeowners described in subsection (1) of Section 27-33-67 shall be allowed an exemption from ad valorem taxes according to the following table:

(2)

(a) Except as otherwise provided in this subsection, qualified homeowners described in subsection (2) of Section 27-33-67 shall be allowed an exemption from all ad valorem taxes on not in excess of Seven Thousand Five Hundred Dollars ($7,500.00) of the assessed value of the homestead property.

(b) From and after January 1, 2015, qualified homeowners described in subsection (2)(a) of Section 27-33-67 and unremarried surviving spouses of such homeowners shall be allowed an exemption from all ad valorem taxes on the assessed value of the homestead property.

(c) Except as otherwise provided in this paragraph (c), a qualified homeowner claiming an exemption under paragraph (a) of this subsection shall be allowed an additional exemption from all ad valorem taxes on an amount equal to the difference between (i) the assessed value of the homestead property on January 1, 2018, or January 1 of the first year for which the qualified homeowner claims an exemption for the homestead property under paragraph (a) of this subsection, and (ii) any increase in the assessed value of the homestead property resulting from a subsequent update in valuation of the homestead property that is completed during the time the qualified homeowner owns the property. In addition, if a subsequent update in valuation of the homestead property that is completed during the time the qualified homeowner owns the property results in the assessed value of the homestead property being less than the assessed value of the property on January 1, 2018, or January 1 of the first year for which the qualified homeowner claims an exemption for the homestead property under paragraph (a) of this subsection, then the exemption authorized under this paragraph (c) shall be on an amount equal to the difference between (i) such lower assessed value and (ii) any increase in the assessed value of the homestead property resulting from a subsequent update in valuation of the homestead property that is completed during the time the qualified homeowner owns the property. However, except for renovations, expansions, improvements or additions to promote energy efficiency, safety or access to the homestead property, the exemption authorized in this paragraph (c) shall not apply to any portion of increase in the assessed value of the homestead property that is attributable to renovations, expansions or improvements of or additions to the property during such time. For the purposes of this paragraph (c), an update in valuation of the homestead property occurs when a county has completed an update in the valuation of Class I property, as designated by Section 112, Mississippi Constitution of 1890, in the county according to procedures prescribed by the Department of Revenue and in effect on January 1, 2018, and for which the Department of Revenue has certified that such new valuations have been implemented for the purposes of ad valorem taxation.

(3) Except as otherwise provided in this subsection, this section shall apply to exemptions claimed in the 2001 calendar year for which reimbursement is made in the 2002 calendar year and to exemptions claimed for which reimbursement is made in subsequent years. The exemption provided for in subsection (2)(b) of this section shall apply to exemptions claimed in the 2015 calendar year for which reimbursement is made in the 2016 calendar year and to exemptions claimed for which reimbursement is made in subsequent years. The exemption provided for in subsection (2)(c) of this section shall apply to exemptions claimed in the 2018 calendar year for which reimbursement is made in the 2019 calendar year and to exemptions claimed for which reimbursement is made in subsequent years.