What Grayson County actually charges, how the homestead exemption applies, and what it works out to per month. Free calculator, no signup.
A home in Grayson County is typically taxed around 1.74 percent of its market value for the 2025 tax year. Across Denison, Sherman and the rest of the county the figure moves between 1.55 and 2.00 percent, so the range is what to plan against rather than the midpoint.
That combined rate is really two things stacked together. Roughly 1.06 percent goes to the school district and 0.68 percent to the county, city, and any special districts. The split matters because the Texas homestead exemption only reduces the school district part, which is the detail most online calculators get wrong.
Grayson County sits at the north end of US-75 around Sherman and Denison. Rates differ noticeably between the incorporated cities and the surrounding rural areas.
At the 1.74 percent Grayson County figure, with the homestead column assuming this is your primary residence. A parcel at the top of the county's 2.00 percent end would run roughly 15 percent higher than these.
| Home value | With homestead | Per month | Without homestead |
|---|---|---|---|
| $250,000 | $2,866 | $239 | $4,350 |
| $350,000 | $4,606 | $384 | $6,090 |
| $500,000 | $7,216 | $601 | $8,700 |
Estimates from the county's typical rate, not a quote on a specific parcel, and they exclude any MUD, PID, or special district assessment. Run your own numbers in the free mortgage calculator, which adds principal, interest, and insurance.
Your assessed value, the exemptions on file, and every taxing unit levying on the parcel are public record at the Grayson Central Appraisal District.
Filing an exemption is free and so is protesting. Every deadline, the late-filing window, and the appraisal cap are in the Texas property tax playbook.
A typical combined rate in Grayson County runs about 1.74 percent of market value for the 2025 tax year, and rates across the county range roughly 1.55 to 2.00 percent depending on which city and school district a property sits in. That combined figure breaks into roughly 1.06 percent for the school district and 0.68 percent for the county, city, and any special districts. Confirm your exact rate with the Grayson Central Appraisal District.
At a typical Grayson County rate, roughly $4,606 a year with the homestead exemption, or about $384 a month. Without the exemption it runs closer to $6,090 a year. These are estimates from the county's typical rate, not a quote on a specific parcel.
In Texas the deadline is May 15, or 30 days after your notice of appraised value was delivered, whichever is later. File with the Grayson Central Appraisal District, and note the informal conference is a legal right rather than a favour.
General information, not legal or tax advice. Exemption eligibility and protest strategy should be reviewed with your CPA, attorney, or tax professional and the Grayson Central Appraisal District. See all counties we cover.