Collin County Mortgage Calculator - Monthly Payment with Taxes, PMI & Insurance
Collin County has not raised its tax rate since 1993 — over 30 years. At $0.149343 per $100, it has one of the lowest county tax rates among major Texas counties and no hospital district. Combined property tax in Collin County typically totals 1.7-1.8%.
Loan Details
$70,000 · LTV 80%
Buyer Profile
Extra Payment
Optional principal-only payment used to estimate payoff speed and interest savings.
Monthly Payment
$1,770 Principal & Interest · $242 Property Taxes · $125 Other
Methodology and limitations
Last reviewed:
Methodology
Uses standard principal-and-interest mortgage math, then models housing-cost inputs such as tax, insurance, PMI, and extra-payment scenarios where available.
Limitations
Planning estimate only. Actual approval, escrow, PMI, fees, taxes, insurance, and closing disclosures depend on lender, property, borrower profile, and local rules.
Official sources
- Consumer Financial Protection Bureau mortgage cost guidance
- Texas Comptroller residence homestead exemptions
- Texas Department of Insurance title premium rates
- TSAHC homebuyer assistance
- TDHCA My First Texas Home
- Collin County — Adopted Tax Rate Notice FY 2025-2026
- Collin Central Appraisal District — Tax Rates & Exemptions
- Collin Central Appraisal District — Tax Rate Breakdown by Entity
Collin County Mortgage Calculator - Monthly Payment with Taxes, PMI & Insurance
Texas
Collin County has not raised its tax rate since 1993 — over 30 years. At $0.149343 per $100, it has one of the lowest county tax rates among major Texas counties and no hospital district. Combined property tax in Collin County typically totals 1.7-1.8%.
Use this mortgage calculator for Collin County, Texas to estimate the monthly payment with principal, interest, configured annual taxes, eligible exemptions, and assistance programs when the buyer profile matches the conditions.
What This Estimate Uses
- Geographic level: county
- Configured property tax rate: 1.37%
- Configured benefits or exemptions: 9
- Reviewed sources: 8
What Changes in Collin County, Texas
- Data level used: county. This page uses the most specific available data layer for Collin County, Texas.
- Configured combined annual property tax rate: 1.37% before exemptions and buyer-specific conditions are applied.
- Configured down payment assistance programs: TSAHC Home Sweet Texas, TDHCA My First Texas Home.
Local Tax Assumptions
These are the annual tax assumptions configured for this page. The calculator applies them to the appropriate value, then accounts for exemptions or conditions when the buyer selects them.
- School District (ISD) Property Tax — 1.140%
- County Property Tax — 0.149%
- Collin College — 0.081%
Programs and Exemptions Included
These benefits do not mean automatic approval. The calculator models them when the buyer inputs match the configured eligibility conditions.
- ISD Homestead Exemption — $100,000 (requires: primary residence)
- Local Optional Homestead — 20% (requires: primary residence, local optional homestead exemption is offered)
- Age 65+ ISD Tax Ceiling — $10,000 (requires: primary residence, buyer is age 65 or older)
- Disabled Veteran Exemption — $12,000 (requires: primary residence, buyer is a disabled veteran)
- Collin County Homestead Exemption — 5% (requires: primary residence)
- TSAHC Home Sweet Texas — 5% of loan (requires: first-time buyer, primary residence, income is below the program cap)
- TDHCA My First Texas Home — 5% of loan (requires: all buyers are first-time buyers, primary residence, income is below the program cap)
- Mortgage Credit Certificate (MCC) — 20% of mortgage interest (requires: first-time buyer, primary residence, buyer has a Mortgage Credit Certificate)
- Texas MCC — 20% of mortgage interest (requires: first-time buyer, primary residence, income is below the program cap, buyer has a Mortgage Credit Certificate)
When This Estimate Can Change
- The actual property tax bill depends on the address, overlapping taxing jurisdictions, approved exemptions, and appraised value.
- Home insurance, flood insurance, HOA dues, and PMI can vary by property, lender, and buyer profile.
- Configured closing costs include Title Insurance (Texas promulgated rate), but other settlement charges may appear on a real loan estimate.
Local Data and Sources
Last editorial verification: June 3, 2026. This page combines the official data layers configured for Collin County, Texas.
The sources used on this page are Consumer Financial Protection Bureau mortgage cost guidance, Texas Comptroller residence homestead exemptions, Texas Department of Insurance title premium rates, TSAHC homebuyer assistance, TDHCA My First Texas Home, Collin County — Adopted Tax Rate Notice FY 2025-2026, Collin Central Appraisal District — Tax Rates & Exemptions, Collin Central Appraisal District — Tax Rate Breakdown by Entity. Each source lists which rate, exemption, or program it validates and when it was last reviewed.
- Consumer Financial Protection Bureau mortgage cost guidance — verified May 3, 2026 — General U.S. mortgage closing-cost and mortgage-cost guidance.
- Texas Comptroller residence homestead exemptions — verified May 3, 2026 — Official source for Texas homestead exemption and appraisal-cap rules.
- Texas Department of Insurance title premium rates — verified May 3, 2026 — Official source for Texas promulgated title insurance premium rate tables.
- TSAHC homebuyer assistance — verified May 3, 2026 — Official source for TSAHC DPA program availability and limits.
- TDHCA My First Texas Home — verified May 3, 2026 — Official source for TDHCA first-time buyer assistance and MCC program rules.
- Collin County — Adopted Tax Rate Notice FY 2025-2026 — verified June 3, 2026 — Official source for Collin County tax rate of $0.149343 per $100 — 33rd year without a rate increase.
- Collin Central Appraisal District — Tax Rates & Exemptions — verified June 3, 2026 — Official source for Collin County tax rates and exemption schedules.
- Collin Central Appraisal District — Tax Rate Breakdown by Entity — verified June 3, 2026 — Official source showing Collin College tax rate of $0.08122 per $100 and all taxing entity rates for Collin County.
Frequently Asked Questions
What is the property tax rate in Texas?
Texas has no state property tax. Local rates average 1.6-2.2% and are the sum of school district, county, city, and special district levies.
What first-time buyer programs exist in Texas?
TSAHC Home Sweet Texas and TDHCA My First Texas Home both offer down payment assistance up to 5% of the loan, subject to current program limits. The Texas MCC provides an annual federal tax credit of up to $2,000.
How does the Texas homestead exemption work?
Primary residences receive a $100,000 school district exemption, plus an optional 20% local exemption (capped at $5,000 minimum). Appraised value can only rise 10% per year while homesteaded.
What is the Collin County property tax rate?
Collin County maintains a rate of $0.149343 per $100, unchanged for 33 consecutive years. Combined rates are approximately 1.71% of taxable value.
Does Collin County have a hospital district?
No. Collin County is one of the few large Texas counties without a hospital district, which keeps its overall tax burden lower than neighboring Dallas County.
Is Collin County really the most affordable for property taxes?
Collin County's 33-year flat rate of $0.149343 per $100 and no hospital district make it one of the most affordable options among major Texas counties. Combined rates average just 1.7-1.8%, significantly lower than Harris County's 2.1-2.8%. However, property values in Collin County have risen sharply, so your actual dollar amount may still be high.
Why doesn't Collin County have a hospital district?
Collin County voters have consistently chosen not to create a county-wide hospital district, relying instead on private hospitals and neighboring Dallas County's Parkland system for indigent care. This saves homeowners roughly $0.19 per $100 compared to Dallas County.
Collin County vs. Dallas County: How much do you save on taxes?
Collin County's rate of $0.149343 per $100 is 31% lower than Dallas County's $0.215500, and Collin has no hospital district. On a $300,000 home, that saves roughly $198 per year on the county portion alone. Combined rates in Collin average 1.71% vs. Dallas's 2.22%, saving $1,530 per year on a $300,000 home.