For other questions you may have, please contact the Office of the Tax Assessor-Collector at 210-335-2251 for personalized assistance. View information about property taxes and exemptions.The Bexar County Tax Office offers the option of paying your Property Taxes online with either a major credit card or an electronic check (eCheck). You can get started with the property tax loan process right away, we recommend you take a few minutes to complete our loan estimate form. The San Antonio Board of REALTORS® is your primary resource when it comes to finding a REALTOR® and buying and selling in San Antonio and the surrounding area.