Idaho law requires that all
property be assessed at market value. The Idaho State
Tax Commission is responsible for making sure each
county assessor is assessing property at market value.
To do this, the Tax Commission conducts annual ratio
studies in each county. These are used to evaluate the
assessment process in the counties and to equalize the
distribution of state school funds and local school
property taxes.
The ratio study is a type of
statistical analysis in which assessments are compared
to sale prices for residential and commercial property
in each county and school district. The ratio study
provides measurements of assessment quality by
determining the typical level and relative uniformity
of the assessments.
The results are reported to the
State Board of Equalization (consisting of Tax
Commission members), which meets annually to review
property assessments by category. The Tax Commission
has established assessment level standards based on
nationally recognized practices. Categories that
do not meet these standards may be subject to additional
testing or to adjustments by the Tax Commission.
For more
information contact Alan Dornfest,
(208) 334-7742.
Ratio Study documentation can be
obtained through the links below:
(You will
need Adobe
Acrobat Reader 5.0 or higher to view and print these pdf files.)
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