Warren County will refund Ameristar Casino $822.31 more than the amount on which the two parties settled in 2010 after a yearlong court fight over the casino’s property value for 2009 tax purposes.

Supervisors agreed to pay the casino $197,691.34 by July 20 to make up for an error found in the original calculation of the gaming venue’s tax bill for personal property, which refers to non-structural items now built onto land, such as inventories kept by a business. The amount resulted from a cut of nearly $11 million on values assigned to the casino’s 21 properties in Vicksburg, resulting in a $3.3 million tax bill on the real property. It essentially split the difference between Ameristar’s tax liability before its renovation completed in 2008 and what the Tax Assessor’s Office originally calculated.

Supervisors missed a Feb. 15 deadline to pay a refund based on inconsistencies between the settled amount and amounts based on current millage rates computed by the Tax Collector’s Office, which receives payments of property taxes and fees on real estate and vehicles for the county, and, by contract, for the City of Vicksburg.

“The tax collector had to compute what was due to make her books balance,” board attorney Randy Sherard told supervisors as he presented an “order of correction” to the board. “This is to get our books straight.”

The suit was one of two filed by casinos against the county over taxes for 2009. In September 2010, a month after the settlement with Ameristar, county officials and Riverwalk Casino agreed on a $50.4 million value for casino’s local holdings. The amount was 35 percent less than originally calculated but about $20 million more than what the casino argued for in its appeal. A $110,536.12 refund was due the casino, based on what was paid during the court case.