(1)  (a) Except as provided in section 63-802, Idaho Code, during any one (1) tax year, the maximum amount of all property taxes from all sources on any property subject to appraisal, assessment, and property taxation within the state of Idaho shall not exceed one percent (1%) of the market value for assessment purposes of such property, including the current market values of all residential improvements, notwithstanding any exemption of a portion of such values from property taxation.
(b)  The limitation provided for in paragraph (a) of this subsection shall not apply to property taxes or special assessments to pay the principal of and the interest and redemption charges on any indebtedness incurred prior to the time this section becomes effective, nor shall the limitation provided for in paragraph (a) of this subsection apply to property taxes to pay the principal of and the interest and redemption charges on any indebtedness incurred on or after November 7, 1978, as prescribed by the constitution of the state of Idaho, nor shall the limitation provided for in paragraph (a) of this subsection apply to special assessments levied on or after November 7, 1978, as provided by law.
(2)  The market value for assessment purposes of real and personal property subject to appraisal by the county assessor shall be determined by the county assessor according to the rules prescribed by the state tax commission, as provided in section 63-208, Idaho Code, but where real property is concerned it shall be the actual and functional use of the real property. All taxable property shall be annually appraised or indexed to reflect that valuation.