MUD and PID Taxes on San Antonio-Area New Homes: What Buyers Should Know (2026)

By Chris Dudley, San Antonio REALTOR®, Founder of Legacy Realty Group, brokered by Real Broker, LLC (TREC #731381). Updated October 27, 2026.

Many newer neighborhoods in fast-growing parts of Texas were built with the help of special districts. Two you will hear about are MUDs (municipal utility districts) and PIDs (public improvement districts). Both can add to your yearly cost of owning the home, so it pays to understand them before you sign a contract. Not every new neighborhood has one, and some resale homes do too.

What is a MUD?

A municipal utility district is a local government district that can pay for water, sewer, drainage and similar infrastructure, often by selling bonds. Homeowners inside the district repay those bonds through a district property tax that is added to your other property taxes (county, city, school district). The rate is set by the district each year.

What is a PID?

A public improvement district is created by a city or county to fund improvements or services that benefit the property, such as streets, drainage, landscaping or amenities. Instead of a tax rate, owners pay an assessment. Under the Texas notice language, the assessment may be paid in full at any time, or in annual installments that can change from year to year; the amounts are approved each year in the district's service plan update, and unpaid assessments can lead to penalties, interest or a lien (Texas Property Code 5.014).

The notices Texas sellers must give you

MUD and similar districts: A seller of property in a covered district must give the buyer a written notice before a binding contract is signed. A copy with current information is signed by both sides at closing and recorded. If you signed without the notice, Texas law gives you the right to terminate the contract; if you get the notice at or before closing and close anyway, you are presumed to have waived that right (Texas Water Code 49.452).
PIDs: A seller of property in a PID must give the buyer the assessment notice before the contract becomes binding, and the buyer signs to acknowledge it (Texas Property Code 5.014).
Builder contracts: Builders are sellers too, so the notices apply to new construction. Read them before you sign the builder's purchase agreement, not at closing.

How to check a home before you buy

Ask early. Before you write an offer, ask the listing agent or builder in writing whether the home is in a MUD, PID or other special district, and ask for the notice.
Look at the tax statement. For resale homes, the county tax office's account lookup (Bexar, Comal or Guadalupe County, depending on the home) shows every taxing unit on the property, including any district.
Look up the district. The Texas Commission on Environmental Quality's Water District Database lets the public search a district by name and see its type, board, creation details and TCEQ-approved bond amounts (TCEQ guide).
Price it into the payment. Ask your lender to include the district tax or PID installment in your monthly escrow estimate, so you compare homes on the full monthly cost, not just the price.
Compare neighborhoods side by side. Two similar homes a few miles apart can have very different total tax bills. See the San Antonio property tax guide for how county, city and school taxes and homestead exemptions work.

Frequently asked questions

What is a MUD tax in San Antonio?

It is a property tax charged by a municipal utility district to repay bonds for water, sewer and drainage built for the neighborhood. It is added to your county, city and school taxes, and the district sets the rate each year.

What is a PID assessment?

It is a charge from a public improvement district created by a city or county to pay for improvements or services that benefit the property. It can be paid in full at any time or in yearly installments that can change.

Does the seller have to tell me if a home is in a MUD or PID?

Yes. Texas law requires sellers, including builders, to give a written notice before a binding contract. For MUD-type districts, a buyer who signed without the notice can terminate the contract (Texas Water Code 49.452).

Are MUD and PID homes a bad buy?

Not necessarily. Districts pay for the infrastructure that made the neighborhood possible. What matters is the total monthly cost, so compare homes on price plus all taxes, assessments, HOA dues and insurance.

Can a homestead exemption lower a MUD tax?

Some districts offer exemptions, but it varies by district. Ask the district or the appraisal district and file your homestead exemption as soon as you qualify.

Who can help me compare new homes with MUD or PID taxes in San Antonio?

Chris Dudley is a San Antonio REALTOR® and Founder of Legacy Realty Group, brokered by Real Broker, LLC (TREC #731381). He helps new-construction and resale buyers across Alamo Ranch, Cibolo, Schertz, Converse, New Braunfels, Boerne and the rest of the San Antonio area. Call (210) 838-6099.

Next step

Looking at new builds and want to compare the true monthly cost? Call or text Chris Dudley at (210) 838-6099 (Mon-Sat, 9 AM-6 PM).

General information, not legal or tax advice. District rates and rules change; confirm with the district, the appraisal district and a Texas real estate attorney for your situation.