Property taxes are the main source of revenue for municipalities (cities, towns, and villages), counties, and school districts in the United States. Certain properties are exempt from property taxes: government-owned property, schools and other educational institutions, churches and other religious institutions, etc.
Property taxes are usually assessed at a rate of the market value of the property; the average assessment rate in the U.S. is 1.5% of its market value. Thus, a home worth $200,000 would pay $3,000 annually in property taxes. In some states there is a “cap” on the property tax rate; in California it is 1%.
Whether this is assessed quarterly, semi-annually, or annually is up to the municipalities. In my state, the municipality, the sewerage district, and the school district all send their tax bills to the county tax assessor’s office, where they are combined into one tax bill that is mailed to the property owner.
If a property owner does not pay the taxes due on the property after a certain period of time (often two years) and numerous warning notices, the local sheriff is authorized to evict whoever resides there, and sell the property at auction to pay the back taxes. The remaining income from the auction, after the back taxes are paid, goes to the former property owner (who may also bid on the property).
Property taxes on all real estate, including those levied by state and local governments and school districts, are fully deductible against current income taxes. For example, if I make $60,000 per year, and I pay $3,000 in property taxes, my taxable income is reduced to $57,000 (no, I’m not paid less by my employer, I just have to report less income to be taxed).