Property tax
MUDs and PIDs: the tax line that is not on the listing
A Texas property can sit inside a district that levies its own tax or assessment on top of county, city and school rates. Neither shows up in a headline tax rate, both change what a property actually costs to hold, and the law requires the seller to tell the buyer before a contract is signed — which is a reasonable indication of how often buyers used to find out afterward.
Two different things
| MUD | PID | |
|---|---|---|
| What it is | A municipal utility district — a political subdivision providing water, sanitary sewer, drainage and flood control | A public improvement district established by a municipality or county under Local Government Code ch. 372 subch. A or ch. 382 |
| How it charges | A district property tax, and in some cases a standby fee | An assessment levied against the property |
| Why it exists | Bonds issued to finance the infrastructure, repaid from district taxes | Costs of a public improvement or services project benefiting property in the district |
Both are ways of paying for infrastructure at the edge of a growing metro. Neither is a defect. What matters to anyone running numbers is that the cost is real, it is attached to the property rather than to the owner, and it is invisible in a county tax rate.
The MUD notice
Water Code § 49.452 puts the obligation on the seller: a person who proposes to sell or convey real property located in a district must give the purchaser the written notice provided by that section and § 49.4521. It reaches districts that provide water, sewer, drainage and flood control facilities or services financed — or proposed to be financed — with district bonds payable in whole or part from district taxes, or by a standby fee.
The notice carries the district's tax rate, the bonded debt currently owed, and the standby fee where there is one. Where a district has not yet levied taxes, its most recent projected rate goes in instead. Read that projection for what it is: a district early in its bond program may have a low or absent rate today and a schedule of issuance ahead of it.
One provision is worth knowing because it tells you where to look. Sellers, title companies, real estate brokers and examining attorneys are entitled to rely on the information form and map or plat as last filed by the district, and that information is conclusively presumed as a matter of law to be correct. The filed form is therefore the document to read — not a summary of it.
The PID notice, and the right it carries
Property Code § 5.014 requires a seller of property in a public improvement district to give written notice titled “NOTICE OF OBLIGATION TO PAY IMPROVEMENT DISTRICT ASSESSMENT”. Under § 5.0141 it is given before the execution of a binding contract of purchase and sale, either separately or as an addendum or paragraph of the contract.
The notice tells the purchaser that an assessment has been levied, that it may be paid in full at any time, and that if it is not, it comes due in annual installments that vary with interest, collection costs, administrative costs and delinquency costs. It also says how to obtain the exact amount from the municipality or county, and that the annual installment is approved each year in the service plan update.
If a contract is entered into without the seller providing the notice, the purchaser is entitled to terminate the contract. That is a statutory remedy attached to a disclosure failure, and it is the reason a missing PID notice is a contract problem rather than a grumble.
What this does to the numbers
For an investor the practical consequence is that the tax rate you underwrite is not the one on the county site.
- Establish every taxing entity and district the parcel sits in, before the option period runs.
- Add the district rate to the combined rate. A property inside a MUD can carry a materially higher total than an identical property outside one.
- For a PID, find the assessment balance and the annual installment — and whether it can be paid off, which changes a sale later.
- Ask where the district is in its bond program. A young district's rate is a starting point, not a settled one.
- Check the standby fee separately. It can apply to an unimproved lot that is using no service at all.
- Model the holding cost at the combined figure, and the exit with the disclosure obligation you will owe the next buyer.
That last point is easy to miss. The notice obligations here fall on the seller, so an investor buying into a district inherits them on the way out.
Where it sits with the rest
District taxes are assessed and protested through the same appraisal machinery as everything else — see Texas property taxes for how the bill is built and protests for the process. The district notices are separate from, and additional to, the seller's disclosure notice, and a title commitment will generally show the district — see title insurance for what that document does and does not cover.
This is a general explanation of statutes that change; section numbers and requirements should be confirmed against the current text and with a Texas attorney or licensed professional for a specific property. It is educational information, not legal, tax or investment advice.
Last reviewed 2026-09-20