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Tax Office / Record Management

Monica Madrigal

Monica Madrigal

Tax Assessor – Collector

(956) 473-7900



The United ISD Tax Office lobby hours of operation are from 8:00 a.m. to 4:30 p.m. from Monday through Friday for payment processing.

Other payment options are available for your convenience:

Payment drop box located to the right of the office doors at 3501 E. Saunders available from 7:30 a.m. to 5:00 p.m. Monday - Friday. Only checks and money orders are accepted. Checks made payable to: United ISD Tax Office

Online payments for a fee at: (credit, debit or check accepted)

Mail-in payments to:

United ISD Tax Office
3501 E. Saunders
Laredo, Texas 78041

The Tax Office accepts postmarks by the U.S. Post Office. If it is the last day of the month, we suggest you have the Post Office hand stamp your envelope to ensure the correct date.

The Tax Office will be closed the following dates:

  • November 22 - 26, 2021
  • December 22- 28, 2021
  • January 3, 2022

If you have any questions please call the tax office at 956-473-7900.


Tax Office – Mission Statement

The Tax Office is dedicated to provide accurate and certified tax information with integrity by delivering the highest level of customer service to its taxpayers, as well as applying professional methods to obtain the highest percentage of collection for the benefit of every student of United Independent School District.

Records Management Office - Mission Statement

The United ISD Records Management Department is dedicated to the management, security, maintenance and preservation of all district records from the time of creation to its possible disposition by assisting campuses and departments with identifying and standardizing records retention/disposition practices that adhere with the Texas Library and Archives Commission and the UISD Retention Schedule.


Tax Office Resources

Tax and Budget Information