D&J Realty Group | Keller Williams McKinney | Published/Updated August 2026
For a home priced at $500,000 with 20% down, a helpful starting point is a total monthly housing payment of about $3,500 before HOA dues and property-specific expenses. This amount includes principal, interest, property taxes, and homeowners insurance. Your actual payment will vary based on the loan amount, current interest rate, taxing entities for the address, and the home’s insurance profile.
The real number to consider isn’t just the purchase price but rather the full monthly picture: what you pay your lender, property taxes, homeowners insurance, and, if applicable, HOA dues. A home that seems affordable based on its list price can feel quite different once you factor in taxes, insurance, and HOA costs as part of your monthly budget.
This article breaks down each part of that monthly cost for McKinney and Collin County, using sample numbers to show how everything fits together. It’s a useful companion to what to expect when buying a home in McKinney, especially for buyers relocating to Collin County from out of state or out of the metro. The goal is to help you make a well-informed decision, because that’s what we do: real data-driven strategizing!
What Makes Up the Real Cost of Owning a Home?
Homeownership costs generally fall into four categories.
Monthly costs
Principal and interest on the mortgage
Property taxes (often collected monthly through an escrow account)
Homeowners insurance (also often escrowed)
HOA dues, where applicable
Private mortgage insurance, or PMI, for conventional buyers who put down less than 20%
Utilities
Periodic and ongoing costs
Routine maintenance: HVAC servicing, seasonal maintenance like gutter cleaning, landscaping, and pest control
Repair reserves for items like roofing, appliances, water heaters, and foundation monitoring, which is especially important in North Texas due to soil conditions
One-time costs at purchase
Down payment
Closing costs
Home inspection and, if desired, specialty inspections
Moving expenses
Property-specific, often overlooked costs
Furnishings and window treatments
Landscaping or fencing
Builder upgrades, if buying new construction
Immediate repairs identified during inspection
Before you make an offer, it’s worth checking each of these categories for the specific property you’re considering, rather than assuming they’ll match a neighbor’s home or a national average.
How Property Taxes Work in McKinney and Collin County
Property taxes in Texas are ad valorem, which means they’re based on the appraised value set by the Collin Central Appraisal District. After any exemptions, this appraised value becomes the taxable value used to calculate your tax bill.
Several taxing entities apply a rate to that taxable value, and which ones apply depends on the property’s exact location. For a home in the City of McKinney and McKinney ISD, the usual entities include the city, the school district, Collin County, and Collin College. The rates below are for illustration only and represent one possible combination of the adopted 2026 rates; they’re not “the McKinney tax rate.”
City of McKinney: 0.412284%
McKinney ISD: 1.0664%
Collin County: 0.151414%
Collin College: 0.081220%
Together, these rates add up to an example planning rate of about 1.71% of the purchase price per year. McKinney ISD's rate includes a tax rate increase on the November 3, 2026 ballot (Proposition A), so it could come in slightly lower if voters reject it. Keep in mind, a different address, even just a few streets away, might fall under a different city, school district, or special district, resulting in a different combined rate. Before you make an offer, it’s important to check the estimate for that specific address. You can do this through the Collin County Tax Estimator. For more background, Collin County’s property tax information page, the Collin County Tax Assessor FAQ, and the Collin Central Appraisal District FAQ are helpful. The City of McKinney’s tax page and McKinney ISD’s financial transparency page also explain how each entity uses the tax revenue it collects.
Illustrative Monthly Housing Costs Before HOA and Property-Specific Expenses
| Purchase Price | Down Payment | Loan Amount | Est. Principal & Interest | Est. Property Taxes | Est. Homeowners Insurance | Est. Monthly Total |
|---|---|---|---|---|---|---|
| $500,000 | $100,000 | $400,000 | $2,561 | $713 | $217 | $3,491 |
| $750,000 | $150,000 | $600,000 | $3,841 | $1,070 | $325 | $5,236 |
| $1,250,000 | $250,000 | $1,000,000 | $6,402 | $1,783 | $542 | $8,727 |
