Economic Analysis and Reports

Millage Rate Increase Limitations

The Revenue and Fiscal Affairs Office (RFA) projects the millage rate increase limitations (millage cap) for local jurisdictions annually. A local governing body may increase the millage rate imposed for general operating purposes above the rate imposed for such purposes for the preceding tax year only to the extent of the increase in the average of the twelve monthly consumer price indices for the most recent twelve-month period consisting of January through December of the preceding calendar year, plus, beginning in 2007, the percentage increase in the previous year in the population of the entity as determined by the RFA. If the average of the twelve monthly consumer price indices is negative or if an entity experiences a reduction in population, that percentage is deemed to be zero for the calculation of the millage increase.

Reference: § 6-1-320. 

NOTICE:  RFA has published the millage rate increase limitations for counties and school districts on March 27, 2020 on our website below.  These have also been emailed to counties and school districts.  All letters were mailed on May 22, 2020 due to the extenuating circumstances resulting from COVID-19. Staff are avaiable to assist with any questions. Please email Mary Katherine Miller at for assistance.


Millage Rate Increase Limitation for FY 2020-21 - Inflation Component Memorandum



FY 2020-2021:

FY 2019-2020:

FY 2018-2019:

FY 2017-2018:

FY 2016-2017:

FY 2015-2016:

FY 2014-2015:

FY 2013-2014:

FY 2012-2013:

FY 2011-2012:

FY 2010-2011:

FY 2009-2010:

FY 2008-2009:

FY 2007-2008:

For questions or comments please contact Mary Katherine Miller at 803-734-3322 or