If your assessment is reduced, the new assessment will affect the tax bill issued after the initial filing. If you’ve already paid your tax bill, a refund will be issued. You will be charged one half of the first year’s savings, plus $30 for the court filing fee (if a SCAR appeal was required) and $50 for the appraisal fee (if a usable appraisal was not supplied). All savings in subsequent years are 100% yours.
If your assessment is not reduced, chances are your assessment is fair.