A property tax assessment is your county appraisal district's official estimate of your property's market value as of January 1st each year. This assessed value directly determines how much you'll pay in property taxes — typically the largest expense for Texas homeowners after their mortgage payment.
In Texas, your total property tax bill equals your assessed value multiplied by your combined tax rates from your city, county, school district, and other local entities. For example, if your home is assessed at $400,000 and your total tax rate is 2.5%, you'll owe $10,000 in property taxes.
Quick Facts: The average Texas homeowner pays $4,560 in property taxes annually, according to the Texas Comptroller. Assessment notices arrive between April 1st and May 31st each year. How Texas Appraisal Districts Calculate Assessed Values Texas law requires all 254 counties to reassess properties annually using "mass appraisal" methods.