Property taxes are assessed on any real and/ or personal property (land, buildings, furniture, equipment, etc.), which directly or indirectly produce income within your business. The County Assessor determines the value of property using a market, cost or income approach. Property taxes are assessed on a percentage of actual value. To determine your property tax bill, multiply the assessed value by the local tax rate. The county assessor will mail a declaration schedule for property taxes after January 1. Taxes must be paid by April 15 unless an extension has been obtained. The County Treasurer is responsible for mailing and collecting the actual property tax bill. Agricultural and natural resources are treated somewhat differently. You should contact your local county assessor regarding property taxes, personal and real estate, whenever you start a new business.