7 Texas Water District Charges That Don’t Show Up Until After Closing

More than 950 municipal utility districts (MUDs), operate across Texas, according to the state association that represents their elected board members.

Every one of them can bill a homeowner a standby fee before a single faucet turns on.

These are the water district charges that don’t show up until after closing on a Texas house.

Note: This is general information, not legal or tax advice. Water district tax rates, fees, and notice requirements vary by district and are subject to change.

1. Second Monthly Bill

A municipal utility district (MUD) runs its own water and sewer system, and it charges for usage the same way a city would.

That charge lands on top of the annual property tax bill, not instead of it.

Moving in from an incorporated city usually means one utility bill, and it comes from the city.

Inside a MUD, the water bill comes from the district itself, or from an operations company it hires, under a name many buyers have never heard before move-in day.

A name from nowhere.

More than 950 municipal utility districts operate across Texas, and each one bills, sets its own rates, and runs its own customer service line separately from every other.

2. District’s Tax Rate

A Texas water district’s own property tax rate is a separate line on the bill, stacked on top of county, school, and city taxes, never folded into any of them.

That rate is public record the moment the district adopts it, posted with the county appraisal district months before any given house goes under contract.

Almost nobody looks it up.

Fort Bend County’s 2024 tax rolls put one MUD, First Colony MUD 9, at just 12 cents per $100 of assessed value, and another, Fort Bend MUD 5, at $1.25.

Same county, same appraisal district, a tenfold gap between neighborhoods a short drive apart.

A buyer who compares homes on the county’s blended tax estimate never sees that gap until the district’s own line appears on the first post-closing bill.

That gap moves a monthly mortgage escrow payment more than ordinary rate shopping ever will.

Two homes at the same list price can carry two very different tax futures, and the only way to tell them apart is to look up the district by name before signing anything.

3. Old Bonds, New Owner

Behind a Texas water district’s tax rate sits money the district borrowed years ago, bonds sold to build the water plant, sewer lines, drainage, and roads a subdivision needed before the first house ever closed.

State law requires the seller’s notice to spell out, in dollars, both the total bonds voters have approved and the total bonds the district has issued.

Those bonds can carry a repayment term of up to 40 years under state law, and paying one off can take decades.

A buyer who closes years after a subdivision breaks ground is still paying down construction that finished long before they ever toured the house.

Old debt.

New name on the deed.

Fort Bend County MUD 133 dropped its rate from $1.22 per $100 in 2023 to $1.17 in 2025, proof the number falls as the district pays down debt, not just as the district takes on more.

4. Standby Fee

Even a lot that has never used a drop of district water can owe a Texas water district a standby fee, a flat charge for having service available whether anyone turns the tap on or not.

State law requires the district’s notice to list that standby fee in dollars, and it calls an unpaid one a “personal obligation” of whoever owned the property at the time the fee was charged.

That timing matters. A fee imposed under one owner’s name can still attach to the property and surface as a lien years after the deed changes hands.

Texas law requires the notice’s caption, “NOTICE TO PURCHASER OF SPECIAL TAXING OR ASSESSMENT DISTRICT,” to run in 24-point bold type across the top of the page.

The standby fee’s dollar amount carries no such requirement.

It sits in ordinary print below the caption, easy to skim past on a stack of closing paperwork.

5. Water Bill’s Hidden Fee

A second charge can ride inside a Texas water district’s own water bill, a pass-through fee from a regional authority the homeowner never signs up for directly.

As of 2023, the West Harris County Regional Water Authority billed participating districts $3.95 per 1,000 gallons for groundwater a district pumps from its own wells, and $4.35 per 1,000 gallons for surface water the authority delivers from Houston’s treatment plants.

A household pays whichever rate matches the water running out of its own tap, not some blended average of the two.

The fee exists because the Harris-Galveston Subsidence District mandates the shift from groundwater to surface water on a schedule.

Land in the region has sunk for decades from over-pumped groundwater, and the authority bills the fix by the gallon.

Straight to the meter.

The district passes the charge along on the same bill as ordinary usage, so a homeowner rarely sees where the regional fee ends and the local one begins.

6. Annexation’s Leftover Bill

A growing city that finally annexes the neighborhood doesn’t automatically erase a Texas water district’s debt.

Missouri City’s own annexation records for a Sienna Plantation MUD state that the city may use “any resources legally available” to pay off the district’s remaining bonds once it takes over.

That debt doesn’t just vanish, and “any resources” can include the fees and rates on the very utility bill a new city resident opens each month.

The district’s name disappears from city records. The debt doesn’t.

The buyer who closed years before annexation never budgeted for this, and it shows up on a city bill long after the MUD notice they signed at closing is forgotten in a drawer.

7. Trash Billed by the District

Some Texas water districts handle trash and recycling themselves, instead of leaving the job to a city crew or a homeowners association (HOA) contract.

Ricewood MUD, northwest of Houston, contracts with a hauler and puts the charge directly on the resident’s utility bill, so every household pays, not just the households that join an HOA.

Many buyers assume trash pickup comes included, the way it often does in an incorporated city.

Instead, a line item shows up, under a hauler’s name picked by a board they never voted for.

No vote on the hauler.

The district’s own reasoning holds up on the price, too: A government-rate trash contract often runs below what an HOA negotiates on its own.

What the Disclosure Law Covers

Texas water district law does put genuine protections on paper, even though the fees above show how easy they’re to miss.

The seller has to hand over the district’s notice before a buyer signs a binding contract, not after.

Texas Water Code Section 49.452 lets a buyer walk away if that notice never arrives on time.

Miss the deadline anyway, and a buyer can still sue for actual costs and interest, or up to $5,000 plus attorney’s fees.

A buyer has to file that claim within 90 days of the first district tax notice, or four years of closing, whichever comes first.

It protects readers, not skimmers.

The Texas Water Development Board publishes public data on the state’s water systems, and the Texas Commission on Environmental Quality (TCEQ) runs a district lookup that lets anyone check a water district by name or county before making an offer.