Texas Tax Code - TAX § 1.12. Median Level of Appraisal

(a) For purposes of this title, the median level of appraisal is the median appraisal ratio of a reasonable and representative sample of properties in an appraisal district or, for purposes of Section 41.43 or 42.26, of a sample of properties specified by that section.

(b) An appraisal ratio is the ratio of a property's appraised value as determined by the appraisal office or appraisal review board, as applicable, to:

(c) The median appraisal ratio for a sample of properties is, in a numerically ordered list of the appraisal ratios for the properties:

(d) For purposes of this section, the appraisal ratio of property to which Section 23.23 or 23.231 applies is the ratio of the property's market value as determined by the appraisal district or appraisal review board, as applicable, to the market value of the property according to law.  The appraisal ratio is not calculated according to the appraised value of the property as limited by Section 23.23 or 23.231.

(d) For purposes of this section, the appraisal ratio of a homestead to which Section 23.23 applies is the ratio of the property's market value as determined by the appraisal district or appraisal review board, as applicable, to the market value of the property according to law.  The appraisal ratio is not calculated according to the appraised value of the property as limited by Section 23.23.