Looking at homes in McKinney and seeing a “MUD tax” on listings or estimates? You are not alone. That extra line item can change your monthly payment and how much loan you qualify for. In this guide, you’ll learn what MUD taxes are, how they are calculated here in McKinney, how lenders treat them in escrow and underwriting, and how to check any address before you make an offer. Let’s dive in.
What a MUD is in McKinney
A Municipal Utility District, or MUD, is a special-purpose local government that funds and maintains water, sewer, drainage, and related infrastructure for new development. MUDs are created under Texas law and governed by a local board. You can read the statutory framework in the Texas Water Code Chapter 54 and the Texas Commission on Environmental Quality’s overview of MUDs (Texas Water Code Chapter 54, TCEQ MUD overview).
In McKinney, some newer neighborhoods sit inside a MUD. For example, properties in Trinity Falls are served by McKinney MUD #1, which publishes its adopted tax rate and budget each year (McKinney MUD #1 resources). MUDs are separate taxing entities, and some neighborhoods may be in a MUD and outside the City of McKinney tax roll. The city’s tax information page offers helpful context on local taxing units (City of McKinney tax information).
How MUD taxes are calculated
Texas property taxes are levied per $100 of taxable value. The basic formula is straightforward:
- Annual MUD tax = (Taxable value ÷ 100) × MUD tax rate
Collin Central Appraisal District (Collin CAD) sets the appraised value and applies exemptions to determine your taxable value (Collin CAD). Some MUDs do not offer a local homestead exemption. Collin CAD shows that McKinney MUD #1 lists a homestead exemption amount of zero, which means the full appraised value may be taxable for the MUD. Always confirm exemptions for the specific district on the Collin CAD rates and exemptions page (Collin CAD rates and exemptions).
Example: Monthly impact on a McKinney home
Here is a simple example using locally published numbers. Assume a taxable home value of about $552,966 and the recently adopted McKinney MUD #1 tax rate of $0.9847 per $100 of value. The annual MUD tax would be approximately $5,444, which equals about $454 per month if collected through escrow. These figures come from local sources and are for illustration only (Community Impact report on city averages, McKinney MUD #1 resources).
Important: Many McKinney homes are not in a MUD, and taxable values vary widely. Always run the numbers for the exact address and district.
How MUD taxes affect your mortgage
Escrow and monthly changes
Most lenders collect property taxes through an escrow account, so they add one-twelfth of your annual taxes to your monthly payment. A higher MUD tax increases that escrow portion, even when principal and interest stay the same. Servicers also run annual escrow analyses and can adjust your payment if taxes rise or your account has a shortage (how escrow works).
Property tax bills in Collin County are mailed in October, and taxes are due upon receipt. Penalties typically apply after January 31, which is why escrow timing matters for your budget (Collin County Tax Assessor property taxes).
Loan qualification and DTI
Underwriting includes property taxes in your qualifying housing payment, often called PITIA. Higher expected MUD taxes increase that total and can reduce the loan amount you qualify for. Lenders use current assessed or reasonably estimated taxes in this calculation, following agency guidance (Fannie Mae monthly housing expense guidance).
Loan programs and escrow
FHA, VA, and USDA loans generally require escrow accounts for taxes and insurance, so your MUD tax will be part of your monthly payment. Conventional loans may allow an escrow waiver in limited cases, but waivers are uncommon and can carry a cost (escrow requirements overview).
How to check a property’s MUD status
Use these quick checks before you write an offer or list a home:
- Search the address in Collin CAD to see all taxing units for that property and confirm which MUD, if any, applies (Collin CAD property search).
- Review the district’s adopted tax rate, budgets, audits, and bond info on the MUD’s website. For example, McKinney MUD #1 posts these documents for public review (McKinney MUD #1 resources).
- Cross-check the City of McKinney’s tax info page to understand whether the neighborhood is inside city limits or primarily taxed by a MUD (City tax information).
- Note key tax calendar dates: appraisal notices typically mail in April, most protests are due by mid May, and tax statements mail in October. Taxes become delinquent after January 31 in most cases (Collin CAD tax calendar, Collin County Tax Assessor).
Buyer and seller checklist
Use this list during due diligence to avoid surprises:
- Request the last 3 years of tax bills and the MUD-specific amounts. Compare them with Collin CAD records.
- Confirm which exemptions apply to each taxing unit. Many MUDs show homestead at $0, so verify on Collin CAD’s exemptions page (Collin CAD exemptions list).
- Review the MUD’s budget, audits, and bond schedules for outstanding debt or planned bond issues that could affect future rates (McKinney MUD #1 resources).
- Ask your lender whether taxes will be escrowed and how they estimate PITIA given the current year’s MUD rate (escrow basics).
- If buying new construction, ask how the builder estimated year-one taxes and whether land-only assessments could increase after the home is assessed.
Benefits and risks of MUDs
MUDs allow new neighborhoods to build modern utilities, roads, and amenities without waiting for city budgets. Rates may decline as the tax base grows and bonds are paid down, although there is no guarantee of decreases. You can see adopted rates and historical trends on the district’s website (McKinney MUD #1 resources).
Risks include higher monthly payments due to the added tax, tighter loan qualification, and the potential for future bond issues that keep rates elevated. Statewide reporting has noted growth in MUD debt over time, which is why reviewing a district’s financials is wise (Houston Chronicle context on MUD debt).
Plan your budget with confidence
Understanding MUD taxes helps you set a realistic monthly payment and avoid escrow surprises. Check the exact taxing units for the address, review the MUD’s financials, and have your lender run a payment estimate using the current rate.
If you want a calm, step-by-step plan for buying or selling in McKinney’s MUD and non-MUD areas, reach out to Taylor Haywood. Our boutique team will help you run precise numbers and make a confident move.
FAQs
What is a MUD tax in McKinney?
- It is a separate property tax levied by a Municipal Utility District to fund local water, sewer, drainage, and related infrastructure, created under Texas law (Texas Water Code Chapter 54, TCEQ overview).
How do I know if a McKinney home is in a MUD?
- Look up the address on Collin CAD to see all taxing units for that property, then review the MUD’s website for its adopted rate and documents (Collin CAD search, McKinney MUD #1 resources).
Do MUDs offer homestead exemptions?
- Some taxing units do, but many MUDs list a homestead exemption of $0. Verify exemptions for the specific district on Collin CAD’s rates and exemptions page (Collin CAD exemptions).
When are property taxes due in Collin County?
- Tax statements are typically mailed in October, and taxes are considered delinquent after January 31 if unpaid (Collin County Tax Assessor property taxes).
How do MUD taxes change my monthly payment?
- If your lender escrows, the MUD tax adds to your monthly escrow amount. Servicers adjust payments during annual escrow analyses if taxes rise or fall (escrow overview).
Do MUD taxes affect how much I can borrow?
- Yes. Lenders include property taxes in your qualifying housing payment, which can reduce your maximum loan amount if the MUD tax is high (Fannie Mae guidance).
