What your MUD tax is paying for

A district can have no bonds and still have a financing backlog

Pilot Knob Municipal Utility District No. 5 serves part of Easton Park in southeast Austin. Its October 2026 preliminary bond statement describes its first $2.245 million road-bond issue. Before that proposed issue, outstanding bond principal was zero. After it, the statement said approximately $23.158 million of developer-funded construction would still await reimbursement.

A tax-rate comparison misses that financing backlog. A district’s outstanding bonds record financing already converted into public securities. Other eligible costs may still sit with the developer, an assignee or a financing vehicle, waiting for the district to borrow or use other lawful funds.

The draft is not proof those future reimbursements will all be approved or financed. It is proof that "no outstanding bonds" can coexist with substantial construction already funded in anticipation of repayment. Pilot Knob 5, preliminary statement, printed pp. 5–8 and 23–25.

The financing passes through several owners. Landowners initiate a government. Developers advance money. A district recognizes or evaluates reimbursement rights. Bonds can refinance those rights. Taxes and sometimes utility revenues then support repayment. Different people make decisions, hold the claims and bear the risk at each stage.

Who creates the government, and who gets paid?

Texas’s constitutional framework dates to the 1917 conservation amendment; the modern general-law MUD chapter dates to 1971. The state grants those governmental powers through the district’s creation process. Texas Constitution, Article XVI §59; Water Code Chapter 54.

A MUD can be created through TCEQ proceedings or a special act of the Legislature. In the general-law route, the creation petition is signed by landowners holding a majority of the land value. That petition is different from the subsequent votes on confirmation, directors and taxes. City consent and service agreements can add conditions; the ETJ process has statutory alternatives, so a city does not possess an unconditional veto over every proposed district.

The ordinary financing flow has three stages:

1. During development: the developer or its lender funds eligible infrastructure. The district’s agreements and applicable approvals determine what may be reimbursed.
2. At a bond sale: investors supply cash. After eligible costs are checked, bond proceeds reimburse the developer or the party holding its reimbursement rights, and pay permitted financing costs.
3. During repayment: taxpayers support the district’s debt service. Principal and interest go through the paying agent to bondholders. Operating revenues pay for services, administration and other lawful district purposes.

The developer receives a reimbursement, which can include carrying costs. That payment is not a measurement of the developer’s profit. Construction contractors, lenders and land acquisition have already consumed money. The law firm must cover its own costs from the fee.

The public district, the infrastructure owner and the retail utility can be different entities. The Pilot Knob disclosures say Austin supplies retail water and wastewater service; audited notes describe facilities conveyed to the city. Residents can therefore pay a MUD tax for infrastructure financing while receiving an Austin utility bill. Pilot Knob 2, FY2024 audited notes in 2025 statement, notes 12 and 14.

A parcel can owe MUD taxes, HOA dues, public-improvement-district assessments and utility charges under different documents. Its taxing-unit list identifies which district can levy the tax.

A $4,500 Sunfield tax bill

Sunfield MUD No. 3's signed September 15, 2026 order divides its $0.90-per-$100 tax into four parts. On a hypothetical $500,000 of taxable value, the MUD portion is $4,500:

The order allocates the levy by purpose. Following cash to an invoice would require the later accounts. Taxable value is the value to which that district’s rate applies after relevant exemptions; it need not equal purchase price. Signed tax order, PDF p. 2.

The contract line is material. Sunfield No. 4 is the Master District. It finances regional water, wastewater and drainage facilities. Participating districts support its debt through contracts, with debt-service shares allocated using relative taxable values. No. 3's FY2025 audit records approximately $2.052 million of contract-tax contributions to the Master District, in addition to its payments for operations.

At September 30, 2025, No. 4 had $66.220 million in regional contract bonds, alongside $15.395 million of its own road bonds. An analysis that looks only for bonds issued in No. 3's name misses the contractual layer. An analysis that adds all $66.220 million to every participating district counts the same regional debt repeatedly. Sunfield 3 FY2025 audit, pp. 18–20; Sunfield 4 FY2025 audit, pp. 16–20.

These are historical audit balances. Later issues appear in subsequent-event disclosures and the 2026 tax order; they are not verified October 2026 balances.

There is a second ledger behind the bonds

The district’s accounts need four figures: voter authorization, outstanding bond principal, unreimbursed developer costs, and obligations to other districts. They answer different questions.

The three Easton Park proposals illustrate the size of the reimbursement pipeline:

Sources: October 22, 2026 council backup, No. 2, No. 3, No. 5. Austin approved municipal consent. A completed sale and delivery still require their closing records.

One screening measure is reimbursement backlog divided by proposed-inclusive bond principal. It is approximately 116% for No. 2, 13.8% for No. 3 and 1,032% for No. 5. It measures the scale of disclosed construction costs still outside the bond ledger. It is not a probability of default, a forecast tax increase or an unconditional debt total. The statements describe differing facility scopes, so this is not a ranking of total construction cost.

Accounting treatment also matters. Pilot Knob’s earlier audited notes describe developer claims under commitments and contingencies, subject to documentation, contractual eligibility and approvals. Sunfield’s FY2025 government-wide accounts instead record estimated developer construction liabilities: $11.4 million in No. 3 and $41.75 million in No. 4. Calling all these amounts "off balance sheet" would be wrong.

Sunfield 3 paid about $2.595 million of construction reimbursements during FY2025, but added approximately $4.695 million of estimated construction obligations. The recorded balance therefore grew by $2.1 million while payments were being made. A declining bond balance alone would not reveal that change. Sunfield 3 audit, developer-liability note.

Do not add a reimbursement already funded by bonds to the outstanding bonds again. Do not add the reported $2.83 million Sunfield Master advance to its $41.75 million liability without resolving possible overlap.

A bond dollar is not all pipe, and operating money can reimburse construction

Moore’s Crossing’s proposed 2026 financing provides a clean sources-and-uses reconciliation. It combines $7.6 million of proposed bonds with $3 million of Operating Fund surplus.

Construction and engineering account for about 81.9% of those sources. Developer interest covers a permitted carrying cost; capitalized bond interest helps make payments during the initial financing period. The remaining items pay for issuance and related work. Moore’s Crossing draft statement, printed p. 20.

The $3 million operating-fund contribution matters. A two-color chart labelled "debt tax for construction, operations tax for services" would miss this transaction. The source of every surplus dollar is not identified in the draft.

The proposed issue also relies on a November 3, 1987 bond authorization, 39 years earlier. That permission to borrow has survived for decades, even though the later bonds have different issue dates. A district can keep issuing installments under old authority as development proceeds.

The landowner, the reimbursement recipient and the bond investor can be different people

The district is a public entity. Asking who "owns the MUD" merges several different rights. The questions that identify the payees are who owns the development, who holds reimbursement rights, who owns or operates the completed facilities, and who holds the bonds.

The verified private counterparties differ across the cases:

Sources: Pilot Knob 2 developer section, Moore’s Crossing developer section, Sunfield 3 final 2024 statement, p. 42.

The claims can trade while the land stays with another owner. TIP’s Anthem-Freedom financing case says Clark Wilson’s Kyle 150 LP sold the Freedom land to Landsea Homes in 2021 while keeping district reimbursement rights. It describes a March 6, 2025 financing with approximately $45.0 million of par amount, capital-appreciation structure and district-bond proceeds as pledged revenue. That is the financing participant’s account; it is not a finding that Anthem MUD itself issued another $45 million of tax debt. TIP transaction case.

The statewide market is visible in a public company’s accounts. Howard Hughes reports that in May 2025 it sold rights comprising $147.0 million of existing MUD receivables, $14.1 million of related accrued interest and $95.9 million of anticipated future receivables for $180.0 million cash. Future-development obligations remained. The sale shows that the rights had a market value below the face amount of the described claims. Timing and risk are plausible contributors, but the filing does not isolate their effects. The sale discount did not erase the districts’ underlying payment promises. Howard Hughes 2025 financial-statement note.

The use of these assignments prompted a response: the Texas Attorney General issued a March 2024 guidance letter on reimbursement assignments to out-of-state issuers. It requires eligible Texas project costs and applicable approvals, and rejects automatic treatment of the outside issuer’s financing costs as district obligations. All Bond Counsel letter.

A complete district story therefore needs the reimbursement agreement and its assignments. The homebuilder’s brand leaves those payees unidentified.

Residents inherit earlier decisions, but there is no universal developer handover date

Three decisions use different rules: petitioning to create the district, serving on its board, and voting in its elections.

The general-law petition uses land value. Permanent directors can qualify by owning taxable district land even if they live elsewhere in Texas. Qualified district voters elect the board, with each voter’s ballot carrying the same weight regardless of land holdings. Some special acts change board composition; the Pilot Knob disclosures describe four elected directors and one Austin appointee. Chapter 54, §§54.014 and 54.102; Pilot Knob governance disclosure.

This does not mean developers can simply sit on every board and vote themselves reimbursement. Chapter 49 contains disqualifications covering developers, specified employees, relatives and professional relationships. Since 2018, additional restrictions apply to developer-connected participants, very recent residents and paid voters in confirmation elections held with tax or bond elections. Today’s compliance or misconduct needs current election records as well as that historical context.

There is no general HOA-style rule that transfers control when 75% of homes have sold. Resident voting rights, election dates, incumbent terms, appointments and the district’s special legislation matter. Old bond authority remains effective until dissolution under §49.106(e). Water Code Chapter 49.

A resident-control date remains unknown for each case. A list of directors who "own property" cannot supply it. The evidence would be election canvasses, candidacy and appointment records, verified qualifications and residence, and board decisions on contracts and reimbursements.

That is a more testable governance question than labelling every nonresident director a developer proxy: Who selected the first decision-makers, which obligations did they approve before the electorate grew, and what can the present board still change?

A few firms receive most of the reported bond-advisory fees

The Texas Bond Review Board publishes issue-level professional fees. Joining those records to the regional tax cohort provides a broader test than counting names in a few bond statements.

For the state fiscal year September 1, 2024 through August 31, 2025, the matched sample comprises 57 issues by 43 issuers, with $340.825 million of total par amount. It reports $6.502 million of financial-adviser fees:

Three firms account for 87.9%. In the BRB-classified bond-counsel category, McCall Parkhurst & Horton, Allen Boone Humphries Robinson, and McLean & Howard account for 84.4% of $5.833 million. One $96,000 entry is classified as BondCounsel while its comment says General Counsel. Excluding it increases the top-three share to 85.8%; the concentration finding survives.

The two fee categories together are $12.336 million, or 3.62% of issue par. That is a measure of those issuance expenses. Full borrowing cost also includes other fees, interest and recurring district administration. BRB Local Issuance Fee dataset.

A broader check using the portal’s displayed five-year histories reaches the same directional conclusion: three firms receive 90.2% of adviser fees across 93 matched issuers with histories. Those histories do not label each constituent year, so the exactly dated FY2025 issue data are the main comparison. The five-year raw rows remain in the accompanying dataset. BRB source index; example issuer page and chart definitions.

The proper conclusion is concentration in reported issuance work. These figures omit other operating legal work, engineering, bookkeeping and utility operation. Board control, complete district spending and profit margins require other records.

The counter-hypothesis deserves a fair test: specialists may spread fixed expertise across many districts and reduce errors and cost. To distinguish scale economies from weak competition, compare fee schedules and invoices for similar issue sizes, maturities and work scopes, then examine procurement and switching. Repeated names leave the procurement question open.

Historical roles also need dates. Sunfield’s FY2025 audit names Baird; July 2026 minutes name Cedar Creek Municipal Advisors. A past fee recipient is not automatically today’s adviser.

The cost comparison needs the same facilities

A MUD can finance eligible infrastructure with tax-exempt public debt and charge a geographically narrow set of beneficiaries. That may reduce the amount a developer must carry privately and the price it needs to recover at closing. It can also add small-issuer transaction costs, its own administration and a narrow tax base. Whether any financing savings reach buyers depends on land prices, competition, housing supply and the development’s costs.

A comparison with a city has to include the same facilities and services: city taxes, utility rates, impact fees, utility revenue bonds, road costs, replacement needs and any subsidy from existing taxpayers. Comparing a MUD’s infrastructure debt with a city’s general-obligation debt alone leaves out the city’s utility financing. Rice’s older Houston work usefully measures district finances but cannot settle that causal cost comparison. Rice Kinder report and supporting analysis.

"Debt per home" is also a fragile denominator. It can divide decades of infrastructure by today’s incomplete population, omit commercial property, or treat tax-exempt apartments as ordinary taxpaying homes. Moore’s Crossing’s draft, for example, identifies 520 apartment units in two tax-exempt complexes. Pilot Knob 2's draft summary reports 915 completed/sold homes while its narrative components sum to 1,015. A precise-looking ranking using those counts would be misleading.

The ledger therefore keeps direct debt and taxable value visible. A regional debt-per-household number would need consistent occupied-home counts. Debt-to-taxable-value measures the district’s financing scale. A home’s tax depends on annual rates, exemptions, collections and its share of the evolving tax base.

Risk changes hands over time. Before a bond issue, a developer or receivable buyer can face delayed or disallowed reimbursement. After issuance, the district must service its securities under their pledges. If taxable development arrives more slowly than expected, existing owners may face rates that stay higher than projected; reserves and other available revenues can cushion the shortfall. Bondholders still bear credit risk. The state approval process is not a blanket state guarantee.

For a simple sensitivity, a 20% smaller taxable base requires a 25% higher rate to raise the same levy, assuming unchanged collections and no offsetting revenue. That does not mean every household’s bill rises 25%: if its own taxable value falls proportionally, its dollar share may be unchanged. The stressful case is often fewer new taxpayers arriving to share a fixed payment schedule.

Nor does retiring original development debt require a district to disappear. Wells Branch’s FY2025 BRB record reports zero direct bond debt; its 2025 tax rate is nevertheless $0.24, all in maintenance and operations. The district still has services and assets to maintain. BRB Wells Branch; Williamson County 2025 rates.

A district ledger, with the gaps left visible

The core regional dataset joins the Comptroller’s 2025 Working tax-rate file, version dated January 28, 2026, to BRB debt at August 31, 2025, TCEQ identifiers and district-level disclosures. Travis, Williamson and Hays form the defined study area; this is narrower than the full five-county Austin metropolitan area.

It contains 174 taxing-unit records: 149 with reported positive rates and 25 whose rates were not reported. The 149 comprise 148 district-name entries and one Brushy Creek defined area. Counting county rows with "MUD" in the name yields 155, but duplicates seven cross-county units and omits the fully spelled-out Crosswinds Municipal Utility District.

For the reported-rate cohort:

• Calculated levy attributable to the three counties is approximately $321.885 million.
• Applying the recorded rate split to taxable values assigns about $213.815 million, or 66.4%, to interest-and-sinking/debt-service components. This estimate applies the source’s single taxable-value base. Cash collected and payments to developers require their own accounts.
• BRB matches cover 131 of the 149 reported-rate units and 99.4% of their reported regional levy.
• Those matched issuers report $2.893 billion of direct principal, comprising $2.768 billion tax-supported and $125.445 million revenue-supported debt. This is whole-issuer debt for issuers touching the study counties, including any outside-county territory; the regional levy above uses only the three-county slices.

The levy is a flow for a tax year; outstanding principal is a stock on a specified date. Dividing one by the other does not yield a borrowing cost.

The extraction is complete under the selected Comptroller rules. It does not cover every existing or newly created MUD. County checks identify additional entries, including Williamson County MUD 39; those appear as supplemental records outside the analytical cohort. TCEQ’s broader candidate inventory is also included, with activity and classification cautions.

Search by the exact taxing-unit name or ID on the parcel record. Missing rates and missing debt matches remain unknown. A zero direct-debt record does not exclude future issues, developer claims, contract taxes or other overlapping obligations. The six detailed district cases go farther than the regional ledger; a full reimbursement-and-control history remains unfinished for other rows.

County validation changes what a homeowner should use. Of the 149 state-file units with reported rates, 147 were corroborated in the county lists; one conflicts and one was not located. South Fork Ranch No. 1 is $1.20, entirely operations, in the official county and district sources, versus $0.5775 in the state file. Williamson MUD 44 has a county-reported $1.20 rate where the state file is missing. The expanded lookup contains 177 records and displays verified county values alongside the unchanged state snapshot. It also adds Williamson MUD 39 and two districts described as new in 2026. Replacing only the South Fork rate at the same state taxable value would lift the estimated levy by about $347,419 and reduce the debt-service component by $231,612; this sensitivity changes the modeled levy. Reported tax collections remain unchanged.

How to find your district’s story

Start with the parcel’s appraisal and tax records. A subdivision name, postal city or nearby water tank is not sufficient. Note every MUD or defined-area taxing-unit name and ID, then use the ledger’s links and the TCEQ district map. TCEQ warns that its map is informational rather than a legal boundary survey.

For each applicable district, assemble this short document chain:

Texas requires a district notice before a binding purchase contract and another current signed copy at closing. But the statutory notice’s “issued” figure is aggregate initial principal of the covered bonds. Remaining principal comes from the current debt accounts. It also does not give a complete reimbursement pipeline or future interest schedule. Read it alongside the audit. Water Code §§49.452 and 49.4521.

A question worth putting in writing is: "Please identify outstanding principal, estimated unreimbursed developer costs, any assignee of those reimbursement rights, and debt or contract payments owed to other districts, with the document and as-of date for each."

For the current year’s affordability calculation, use that year’s adopted order and your property’s taxable value for that district. Add utility charges, HOA dues, PID assessments and any extra defined-area tax to that budget. A $0.90 MUD rate leaves those other bills to be added.

Residents also have a statutory route to seek meetings within the district: once at least 50 qualified electors reside there, five can invoke the applicable request process, subject to location and other statutory conditions. That is more concrete than simply being told to attend a board meeting.

The utility charge supplies another part of the household cost. In the private-water tariff study, communities entering the same rate pool experienced sharply different bill changes. A comparison of private and district service needs both the utility tariff and the tax-supported financing shown here.

What earlier reporting already explained

The developer-reimbursement mechanism is not a new discovery. Homebuyer explainers already describe it, with uneven precision. An older Heritage Title guide says boards are elected by property owners and mixes several types of water districts in its lists. Current statutes distinguish landowners, directors and qualified voters. Heritage guide.

Sara Galvan’s 2007 Fordham paper develops the questions of developer influence, participation and fragmentation. The Houston Chronicle’s 2016 MUD investigation already followed professional firms, legislative sponsorship and political contributions. Those works supply important questions; today’s affiliations and compliance require later evidence. Fordham paper; Chronicle investigation.

Rice Kinder’s 2018 research already combines district age, taxable value, debt and geography. Recent Austin guides compare tax rates, while The HOA Book provides district records combining registry, taxes and bond debt. No claim is made here to have invented those joins or the concept of debt per parcel. Rice research; Austin rate guide; HOA Book example.

This investigation connects those records: put the current tax line beside the reimbursement pipeline, the master-district contract, the identifiable private recipient and the professional fee network. Then distinguish what is legally authorized, currently borrowed, recorded as a liability, contingent, or merely proposed.

The toll-road investigation follows legal title and the money paid under each contract. The Houston flood investigation demonstrates the value of connecting physical development with public decisions. Neither substitutes for the Austin district documents. Toll-road study; Hell and High Water.

Evidence, limitations and what would change the conclusions

Source hierarchy. Signed tax orders give adopted rates. Audits give dated accounting balances and their qualifications. Final official statements disclose the issuer’s financing terms; preliminary statements describe proposals and estimates. Company case studies describe their own transactions. A district’s current debt needs its financing accounts. Each category keeps its own date.

Identity and arithmetic. Tax units are deduplicated by Comptroller ID, with cross-county values preserved. Brushy Creek’s defined area is flagged because it overlaps its parent. BRB matches use exact normalized names and explicit aliases, with unmatched records left blank. FY2025 fees are summed by issuer, issue, BRB-classified role and reported firm; issue par is counted once per issue and reconciles to the state issuance control. Five-year histories provide a secondary check. Regional levy is calculated from the rates and tax base. Collections can differ. The source provides a single taxable-value field, so component levies are estimates.

Source conflicts were preserved. Pilot Knob 2 has inconsistent completed-home counts. Pilot Knob 3's draft uses fall $23,100 short of its stated $4.4 million issue. Sunfield’s audit narrative includes a sentence inconsistent with its detailed regional-bond schedules. A Wells Branch web page mixes year labels; the contemporaneous October 2025 newsletter and county rate table corroborate $0.24. The county reconciliation also identifies a materially different South Fork Ranch tax rate and fills a missing Williamson MUD 44 rate. These conflicts prevent unsupported precision; they are not evidence of fraud.

Claims kept. District-bond totals can omit a material reimbursement pipeline. Some household tax lines finance another district’s securities. Reported bond-issuance work is concentrated among a few firms. Old voter authorization can support much later issues.

Open questions. A representative percentage of buyers unaware of MUD taxes; developer profit; a resident-control date for every district; ultimate beneficial owners of every private vehicle; systematic overcharging; or a causal cost advantage over city financing.

The conclusions would change with evidence that resolves those gaps: final sale and reimbursement audits replacing proposals; a complete assignment chain showing a different payee; updated audits showing claims paid, rejected or overlapped; procurement and matched-cost evidence explaining fee differences; and election records showing resident control. Lower rates alone would not settle those questions.

The appropriate unit of investigation is the specific legal district and the specific payment promise. A homeowner needs both to understand what the tax is buying and what commitments may still be ahead.

The district needs two financing ledgers

A district’s issued debt, reimbursement pipeline and promises to other districts belong together in a comparison of tax rates. The homebuyer inherits a payment system, and the bond balance describes only the part already financed.