The Williamson County Tax Assessor Collector’s Office has contracted with Grant Street Group to modernize and enhance its e-payment services for its citizens with PaymentExpress®, Grant Street’s comprehensive and intuitive e-payment solution. The agreement includes full-scale payment processing services for property tax and DMV payments – online and in-person credit cards, debit cards, e-checks, and digital wallets payments – enabling the County Tax Assessor Collector to deliver a seamless payment experience for residents within a convenient unified platform.

A center for high-tech companies located just north of Austin, Williamson County serves a population of nearly 650,000 residents across its many picturesque cities and towns, and will become the second Texas county to leverage the benefits of PaymentExpress. The implementation is scheduled for completion by the start of the 2024 property tax season that begins in October.

“We’re honored to join forces with Williamson County Tax Assessor Collector, Larry Gaddes, in his commitment to innovate and provide exceptional customer service to the public,” said Craig Phillips, Business Development Manager. “We look forward to serving the dedicated team of professionals at the Williamson County Tax Assessor Collector’s office.”

PaymentExpress benefits include seamless integration with County and State systems of record, increased digital payment adoption, faster checkout times, reduced e-check returns, and improved reconciliation, account balancing, and reporting, to name a few.

For more information, contact Craig Phillips at (772) 263-2363 or via email

About Grant Street Group
Grant Street Group specializes in cloud-based government solutions for tax collection, e-payments, and auctions. Every year, we process over $67 billion in tax payments and $28 billion in e-payments. Over the past 20 years, Grant Street has hosted online auctions of financial instruments exceeding $13 trillion.