According to the City of Clarksville website:

“There is a change in the payment of 2008 property taxes that is significantly different from prior tax years. In tax years prior to the 2008 tax year you had until May 31 to pay the property taxes due, for the tax year 2008 the property taxes must be paid on or before February 28, 2009. The 2008 property taxes will be come delinquent on March 1, 2009. This change was necessary to better coordinate the property tax files and the administration of the city’s tax freeze and state tax relief program on a basis consistent with that of Montgomery County. To avoid interest and penalty for the tax year 2008, the payment of 2008 property taxes must be on or before February 28, 2009.”