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Calculating the Tax
Computation of Tax
The Loudoun County Board of Supervisors establishes business tangible personal property tax rates each year. The county determines the tax by multiplying the property’s original cost by the appropriate assessment factor according to the assessment formula, and then multiplying the assessed value by the appropriate tax rate. The current tax rate is $4.20 per $100 of assessed value.

Example:
Purchase Year Original Cost    Assessment Factor   Assessed Value
 2015  $7,000   X  50%   =  $3,500
 2014  $4,500   X  40%   =  $1,800
 2013  $5,000   X  30%   =  $1,500
 2012  $2,350   X  20%   =  $470
 2011 & prior  $155,000   X  10%   =  $15,500

  • Total Assessment = $22,770
  • ($22,770 / 100) X $4.20 = $956.34
  • Annual Tax Amount = $956.34

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