Special districts
MUDs and PIDs add extra fees to your Bexar County property tax bill
New developments in Bexar County, especially on the outer edges of San Antonio, often sit inside Municipal Utility Districts or Public Improvement Districts that add extra taxes or fees to your bill.
A Municipal Utility District (MUD) is a special district the state approves. It can charge its own property tax to pay off bonds. Those bonds paid for water, sewer, and drainage for a new subdivision. MUDs are common on the growing edges of Bexar County. When you buy in a MUD, you pay county and city taxes plus the MUD's own tax rate.
A Public Improvement District (PID) works differently. A city or county creates a PID to fund things like landscaping, parks, or roads. Instead of a tax rate, a PID charges a special annual fee tied to your property. When a PID issues bonds, the repayment shows up as a line item on your tax bill.
Before buying in any new development, ask the title company or seller if the property is in a MUD, PID, or other special district. Ask for the current tax rates and assessment amounts. You can search the TCEQ Water Districts Map Viewer at tceq.texas.gov to find MUD boundaries.
Source to confirm: TCEQ – Municipal Utility Districts Overview