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Updated 2025 Tax Year

Grayson County
Property Tax Guide

Everything you need to know about property taxes in Grayson County, TX. Rates, due dates, exemptions, and how it affects your monthly payment.

10 Official Sources
8 min read
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Quick Facts
Tax Rate
Varies by location: County rate ~0.4815% + school district rates 0.9-1.4% + city/special districts
1st Due
Jan 31
Exemptions
5+ Available
Section 1

How Property Tax Works

Grayson County, Texas operates under the state's property tax system, which serves as the primary funding mechanism for local government services, school districts, and various special districts. Property taxes fund essential services including public education, county operations, emergency services, road maintenance, and local municipal services. The county follows Texas Property Tax Code requirements, with properties assessed annually based on market value as of January 1st.

Property tax rates in Grayson County vary significantly by location within the county due to the presence of multiple overlapping taxing jurisdictions. These include the county itself, school districts, cities, community college districts, and various special districts for services like water, fire protection, and emergency medical services. For 2025, the combined effective tax rate typically ranges from approximately 2.0% to 2.8% of assessed value, depending on your specific location and the taxing entities that serve your property. Homeowners should verify their specific tax rate combination based on their property's location within the various taxing district boundaries.

Section 2

What Makes Up Your Tax Bill

ComponentRate (per $100)Description
Grayson County$0.3051County operations, sheriff, courts, roads
School DistrictsVaries by districtLocal school district operations and debt service
Grayson College$0.1460Community college district
CitiesVaries by cityMunicipal services (if within city limits)
Special DistrictsVariesFire, EMS, water, MUD districts as applicable

Levy Year: These rates apply to Tax Year 2025 (FY 2025-2026). School district rates vary significantly across the county - for example, some districts may have total rates ranging from $1.20 to $1.50 per $100 of assessed value. City rates also vary widely depending on the municipality. Property owners receive a tax statement showing all applicable taxing entities for their specific location. Special district taxes may include Municipal Utility Districts (MUDs), Emergency Services Districts (ESDs), and other local improvement districts that only apply to properties within their boundaries.

Section 3

When Are Property Taxes Due?

For the 2025/2026 tax year in Grayson County, property taxes are due in two installments:

First Installment
Jan 31
Delinquent after Dec 10
Pro tip: If you pay through mortgage escrow, your lender splits these payments across your monthly mortgage. If you pay directly, set calendar reminders to avoid late penalties.
Section 4

Supplemental Tax Bills

Supplemental taxes in Texas are triggered when new construction is completed or when property undergoes significant improvements during the tax year. Unlike some states, Texas does not impose supplemental taxes for ownership changes alone. The primary trigger is the addition of new taxable value to the property after the January 1st assessment date.

When new construction is completed or improvements are finished, the appraisal district conducts a supplemental appraisal to capture the additional value. This supplemental assessment covers the period from when the improvement was substantially complete until the end of the current tax year. For example, if a $100,000 addition is completed on July 1st, the supplemental tax would be calculated on that $100,000 of additional value for the remaining 6 months of the tax year (50% of the annual tax rate). The property owner receives a separate supplemental tax bill in addition to their regular annual property tax statement.

Example Calculation

Example 1: $300,000 Home with Homestead Exemption

  • Market Value: $300,000
  • School Homestead Exemption: -$100,000 (for school taxes only)
  • County/Other Homestead Exemption: -$25,000
  • School Taxable Value: $200,000
  • Other Taxable Value: $275,000
  • Estimated Combined Rate: ~2.2%
  • Annual Tax: ~$5,600 | Monthly: ~$467

Example 2: $600,000 Home with Homestead Exemption

  • Market Value: $600,000
  • School Homestead Exemption: -$100,000 (for school taxes only)
  • County/Other Homestead Exemption: -$25,000
  • School Taxable Value: $500,000
  • Other Taxable Value: $575,000
  • Estimated Combined Rate: ~2.2%
  • Annual Tax: ~$12,200 | Monthly: ~$1,017

Example 3: $1,000,000 Home with Homestead Exemption

  • Market Value: $1,000,000
  • School Homestead Exemption: -$100,000 (for school taxes only)
  • County/Other Homestead Exemption: -$25,000
  • Other Taxable Value: $975,000
  • School Taxable Value: $900,000
  • Estimated Combined Rate: ~2.2%
  • Annual Tax: ~$20,800 | Monthly: ~$1,733

Note: Homestead exemptions require application and apply differently to school vs. other taxing entities. Rates vary by specific location and taxing districts.

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Section 5

Escrow & Property Taxes

Most mortgage lenders in Grayson County require property tax escrow accounts for borrowers with less than 20% down payment, though some require it regardless of down payment amount. Your lender collects monthly escrow payments along with your mortgage payment, typically calculated as 1/12th of the previous year's tax bill plus a small cushion. The lender pays your property taxes directly to Grayson County when they become due.

Property taxes in Texas are paid in arrears, meaning you pay for the previous tax year. Taxes become due October 1st and are delinquent after January 31st of the following year. However, the county offers a split payment option where you can pay half by November 30th and the remaining half by June 30th without penalty. Lenders typically pay the full amount by the January 31st deadline to avoid any late fees. Property owners should verify that their lender has paid taxes on time and in full, as the property owner remains ultimately responsible for payment even when using escrow.

How HonestCasa Helps
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Section 6

Frequently Asked Questions

Q: When are property taxes due in Grayson County for the current fiscal year? A: For Tax Year 2025, taxes become due October 1st and are delinquent after January 31, 2026. You can split payments: half by November 30, 2025, and half by June 30, 2026.

Q: What homestead tax credits are available and do I need to apply? A: Yes, applications are required. The school district homestead exemption removes $100,000 from school taxes only. County and other entities offer a $25,000 homestead exemption. Both require filing with the Grayson Central Appraisal District by April 30th of the first year you claim them.

Q: How does the homestead exemption work for assessment increases? A: The homestead exemption caps your assessed value increases to 10% per year for your primary residence, regardless of market value increases. This is automatic once you file for homestead exemption - it doesn't reduce market value but limits taxable value growth.

Q: What other tax credits require applications? A: Senior citizens (65+) qualify for additional exemptions, veterans with disabilities may receive exemptions, and agricultural/timber exemptions are available for qualifying land use. All require annual or periodic applications with specific deadlines.

Q: When are properties assessed and how can I appeal? A: Properties are assessed annually as of January 1st. You'll receive a notice of appraised value by April. Informal appeals can be filed through May, and formal appeals must be filed with the Appraisal Review Board by May 31st.

Q: What are the penalties for late payment? A: Taxes are delinquent after January 31st. Penalties include 6% the first month, then 1% each additional month, plus 12% annual interest. Attorney fees may also apply for severely delinquent accounts.

Q: Can I pay property taxes online? A: Yes, Grayson County offers online payment options through their official website. Credit card, debit card, and electronic check payments are typically accepted, though convenience fees may apply.

Q: Why do special district taxes vary so much between properties? A: Grayson County contains numerous special districts (fire, EMS, MUD, etc.) that only tax properties within their boundaries. Your location determines which special districts serve your property and their respective tax rates.

Verified Sources

Backed by 10 Official Government Sources

Every fact in this guide is sourced from official county, state, and federal documents.

01
Tax Doc
Tax Rates 2025 (PDF)denisontx.gov
02
County
2 b - Grayson Countyco.grayson.tx.us
03
Tax Doc
Property Tax Methods and Assitance Program 2025 Reportcomptroller.texas.gov
04
Tax Doc
Local Schedule TX - for Records of Property Taxationtsl.texas.gov
05
Tax Doc
Property Tax Law Deadlines - Texas Comptrollercomptroller.texas.gov
06
County
GRAYSON COUNTY, TEXASco.grayson.tx.us
07
Residence Homestead Exemption Affidavits - Texas Comptrollercomptroller.texas.gov
08
County
Grayson County Property Taxnacdashboard.nara.gov
09
Application for Residence Homestead Exemptioncomptroller.texas.gov
10
Tax Doc
96-1717 Handbook of Texas Property Tax Rulescomptroller.texas.gov
All sources verified as of 2025 Tax Year

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