More than half of California's 58 counties now require a fee when you submit assessment appeal application.

This fee is to cover the administrative costs of processing your appeal application. It's similar to fees in other counties, which usually range from $30 to $86. The amount of the fee is calculated based on how much it costs the county to process these applications.

Remember, this fee non-refundable, even if your appeal is unsuccessful. That's because the county has already spent time and resources on processing your application, regardless of the outcome.

When you apply online, Property Tax Advisors will collect this fee during the application process. If you're applying by mail or in person, make sure to include the fee with your application. If you don't pay the fee when you submit your application, it won't be considered valid.