Grayson, GA Property Tax: Rates & How to Save (2026)
Grayson, GA property taxes: $4,378/year median. See rates, how to appeal in Gwinnett County, and check your savings.
Key Takeaways
Median home value: $477,500 in Grayson.Median annual tax bill: $4,378.Tax rate: Gwinnett County's combined rate is 3.506%.Appeals filed with: Gwinnett County Board of Assessors (not the city).Appeal deadline: 45 days from your assessment notice date.
Grayson is a Gwinnett County city where the median home value of about $477,500 runs 25% above the already-high county average, with tax bills that can approach $4,400. In a market that competitive, verifying your assessment against recent nearby sales is one of the simplest ways to protect your bottom line.
Property Tax Rates in Grayson
Grayson property taxes are assessed and collected by Gwinnett County. Georgia assesses all property at 40% of fair market value.
Here is how the tax math works for the median Grayson home:
Fair Market Value (county assessment): $477,500
Assessed Value ($477,500 x 0.40): $191,000
Tax Rate (Gwinnett County combined rate): 3.506%
Annual Tax Bill ($191,000 x 3.506%): $6,696
The Census Bureau reports a median annual tax bill of $4,378 for Grayson, which reflects all levies including county, school, and city taxes.
How Grayson Compares
Grayson: $477,500
Gwinnett County: $380,900
Georgia (statewide): $170,200
Homes in Grayson are valued 25% above the Gwinnett County median. Higher home values mean a larger tax bill - and a bigger potential payoff from a successful appeal. The median annual tax bill in Grayson ($4,378) is 204% above Georgia's statewide median of $1,439. Home values in Gwinnett County range from about $289,831 (25th percentile) to $487,646 (75th percentile), so your appeal savings depend heavily on where your home falls in that range.
How to Appeal Your Grayson Property Tax
Property tax appeals in Grayson are handled by the Gwinnett County Board of Assessors. You have 45 days from the date of the assessment notice to file using the PT-311A form.
Based on a combined tax rate of 3.506%. Your actual rate may vary by tax district.
A 10% reduction on the median Grayson home ($477,500 down by $47,750) would save approximately $670 per year - or $2,010 over three years with the 299c freeze.
The median annual property tax bill in Grayson is $4,378, based on Census ACS 2024 data. Using Gwinnett County's millage rate of 3.506%, the computed tax on the median home ($477,500) is approximately $6,696.
Who do I contact to appeal my Grayson property tax?
Appeals are filed with the Gwinnett County Board of Assessors, not at the city level. File a PT-311A form within 45 days of your assessment notice.
Why are Grayson home values higher than the Gwinnett County average?
Grayson's premium reflects demand driven by school quality, proximity to employment centers, and neighborhood amenities. Higher values mean a larger potential overassessment -- a 10% overvaluation costs approximately $669 per year in excess taxes.
How is my Grayson property tax bill calculated?
Georgia taxes property at 40% of fair market value. For Grayson's median home ($477,500), the assessed value is $191,000. Multiply by Gwinnett County's millage rate of 3.506% to get your annual bill. Many Grayson homeowners find that assessed values have climbed faster than actual sale prices. Comparing your value to 3-5 recent sales of similar homes is the quickest way to spot an overassessment.
Is it worth appealing a small overvaluation in Grayson?
Yes. Even a $140 per year overcharge (from a $10,000 overvaluation at Gwinnett County's 3.506% rate) adds up to $420 over three years with the 299c freeze. The appeal is free to file and there is no risk of your assessment increasing.
Why is my Grayson property tax bill so high?
The median tax bill in Grayson is $4,378 -- 204% above Georgia's statewide median of $1,439. This reflects both higher home values and Gwinnett County's combined millage rate. If your individual assessment is higher than what your home would actually sell for, you are paying even more than necessary.
Can my property tax go up if I appeal?
No. Georgia law (O.C.G.A. § 48-5-311) protects you: the county cannot raise your assessed value above what they originally set just because you filed an appeal. The Board of Equalization only rules on the disputed value. Worst case, your appeal is denied and you keep your current assessment -- your taxes will not increase as a result of appealing.