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). For other questions you may have, please contact the Office of the Tax Assessor-Collector at 210-335-2251 for personalized assistance.Just fill out the form below or give us a call at 800-688-7306 and get your property taxes paid today! If you have any questions, please feel free to call us at (915) 519-0906 or fill out this form and click submit. Depending on your lender, you may have to sign in to an online account, call a helpline, or send a formal letter to start the request process. Complete list of Texas Comptroller Property Tax Forms and Applications click here. Texas Comptroller Property Tax Publications click here. We specialize in Bexar County and can take care of your delinquent taxes for you. Quick and easy property tax loans. We've put together this guide to help first-time homebuyers understand how escrowed property taxes are generally handled at closing in Texas.