Download forms from the Tax Assessor-Collector's office. 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).A payoff letter provides instructions on how to pay off a loan with a lump sum before the loan term ends. Learn how payoff letters work. Getting the payoff quote is simple. You can contact your lender via telephone, visit them in person, or go online and request a payoff amount. A publication to assist county Tax Assessor-Collectors with collection, remittance and regulations for Texas Motor Vehicle Sales and Use Tax. Program of the scope we intend in this legislation. Will fit in the letter squares.