About Mike

Mike Sullivan, Harris County Tax Assessor-Collector, leads the Tax Office with a fiscally conservative, no non-sense approach.



As a former Houston City Councilman, Humble ISD school board member, Region H Water adviser and Hospital trustee, Sullivan has more than 40 years of business experience. Known by Houstonians as a budget watchdog, his priorities center on advancing technology, improving customer service and advocating for tax payers.



Sullivan oversees a staff of 400 people across 16 branch offices. He works closely with HCAD and keeps a watchful eye over the property tax division as well as the automobile registration division, working closely with TXDMV for the largest county in Texas.



Sullivan believes strongly in community involvement, as evidenced by his service as a board member of Hospital Corporation of America-Gulf Coast Division, director of Lake Houston Area Chamber of Commerce, Kingwood Musical Arts Society Advisory Board, and as a member of the Lone Star College System Chancellor’s Advisory Council.



Additionally, Sullivan is an Ex-Officio Director of the Bay Area Houston Economic Partnership, director of the Bay Area Houston Convention & Visitors Bureau, and member of the UH-Clear Lake Community Partners Council.  Governor Rick Perry recently appointed Sullivan to serve on his 9-member Task Force on Unfunded Mandates.




Sullivan received his Associate of Arts from Lone Star College-Kingwood in 2011 and graduated at the age of 56 from UH-Downtown, with a B. S. in Political Science.