When you first encounter property tax in San Antonio, it can be a bit surprising.

This is because, while there is no income tax, property taxes are significantly higher compared to other states.

In fact, the median effective tax rate in Bexar County, where San Antonio is located, is 1.55%, which is well above the national median of 1.02%.

Property tax is not simply a percentage of the home value; rather, it is a structure where various taxing authorities, such as counties, cities, school districts, and special districts, apply their own rates and combine them. Therefore, even if the home value itself is low, the tax burden you have to pay each year can be higher than expected.

The combined tax rate for the county-wide taxing authorities that apply uniformly within Bexar County is about $1.29 per $100 of assessed value.

This includes taxes from 5 to 6 entities such as the county, city, college district, hospital district, and airport district. The issue is that the independent school district (ISD) tax rate for the area is added to this, determining the final tax amount.

The Alamo Heights Independent School District (Alamo Heights ISD) has a rate of about $0.9572 per $100, making it one of the lowest in Bexar County, while the Harlandale ISD has a relatively high rate of about $1.2575.

Ultimately, the amount of property tax you pay can vary significantly depending on which school district you live in, so it's essential to check before purchasing a home or moving.

Major school districts that many San Antonio residents belong to, such as Northside ISD (NISD) and Northeast ISD (NEISD), have recently slightly lowered their rates due to increased state funding.

As of 2025, the combined rate for NEISD is about $0.9882 per $100, and NISD is in a similar range.

On the other hand, South San ISD has a combined rate of about $1.1959, which is on the higher side among major school districts.

Fortunately, the Texas state government is currently implementing strong tax relief policies to ease the burden on taxpayers.

In particular, with the enactment of Proposition 13, which Texas voters approved, the homestead exemption benefit has been significantly expanded from $100,000 to $140,000 for school district property taxes.

This means that for owner-occupied homes, $140,000 is excluded from the school district's taxable value before calculating taxes, which is the most effective way to save thousands of dollars in taxes each year.

This exemption is not applied automatically, so you must apply for the homestead exemption directly with the Bexar Appraisal District after moving. The application deadline is April 30 of the relevant year, and missing this deadline may delay the benefits.

Property tax bills are sent out every October, with the final payment deadline being January 31 of the following year.

If paying a large amount at once is burdensome, you can utilize the installment payment system to pay in multiple installments.

If you miss the payment deadline by even a day, a late fee of 6% for the first month and a hefty penalty of 12% will be applied all at once, and it will snowball over time, so it's crucial to manage the dates carefully.