Whitemarsh Island, GA Property Tax: Rates & How to Save (2026)
Whitemarsh Island, GA property taxes: $3,420/year median. See rates, how to appeal in Chatham County, and check your savings.
Key Takeaways
Median home value: $399,700 in Whitemarsh Island.Median annual tax bill: $3,420.Tax rate: Chatham County's combined rate is 3.371%.Appeals filed with: Chatham County Board of Assessors (not the city).Appeal deadline: 45 days from your assessment notice date.
Whitemarsh Island is a Chatham County coastal community between Savannah and Tybee, where home values average around $400,000 -- about 32% above the county median. Waterfront and near-water properties can be especially prone to inflated assessments, so checking yours against actual comparable sales is well worth the effort.
Property Tax Rates in Whitemarsh Island
Whitemarsh Island property taxes are assessed and collected by Chatham County. Georgia assesses all property at 40% of fair market value.
Here is how the tax math works for the median Whitemarsh Island home:
Fair Market Value (county assessment): $399,700
Assessed Value ($399,700 x 0.40): $159,880
Tax Rate (Chatham County combined rate): 3.371%
Annual Tax Bill ($159,880 x 3.371%): $5,389
The Census Bureau reports a median annual tax bill of $3,420 for Whitemarsh Island, which reflects all levies including county, school, and city taxes.
How Whitemarsh Island Compares
Whitemarsh Island: $399,700
Chatham County: $302,700
Georgia (statewide): $170,200
Homes in Whitemarsh Island are valued 32% above the Chatham 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 Whitemarsh Island ($3,420) is 137% above Georgia's statewide median of $1,439. Home values in Chatham County range from about $195,435 (25th percentile) to $472,409 (75th percentile), so your appeal savings depend heavily on where your home falls in that range.
How to Appeal Your Whitemarsh Island Property Tax
Property tax appeals in Whitemarsh Island are handled by the Chatham 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 3.371%. Your actual rate may vary by tax district.
A 10% reduction on the median Whitemarsh Island home ($399,700 down by $39,970) would save approximately $539 per year - or $1,617 over three years with the 299c freeze.
How much is property tax in Whitemarsh Island, GA?
The median annual property tax bill in Whitemarsh Island is $3,420, based on Census ACS 2024 data. Using Chatham County's millage rate of 3.371%, the computed tax on the median home ($399,700) is approximately $5,389.
Who do I contact to appeal my Whitemarsh Island property tax?
Appeals are filed with the Chatham County Board of Assessors, not at the city level. File a PT-311A form within 45 days of your assessment notice.
Why are Whitemarsh Island home values higher than the Chatham County average?
Whitemarsh Island'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 $538 per year in excess taxes.
How is my Whitemarsh Island property tax bill calculated?
Georgia taxes property at 40% of fair market value. For Whitemarsh Island's median home ($399,700), the assessed value is $159,880. Multiply by Chatham County's millage rate of 3.371% to get your annual bill. Many Whitemarsh Island 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 Whitemarsh Island?
Yes. Even a $134 per year overcharge (from a $10,000 overvaluation at Chatham County's 3.371% rate) adds up to $402 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 Whitemarsh Island property tax bill so high?
The median tax bill in Whitemarsh Island is $3,420 -- 137% above Georgia's statewide median of $1,439. This reflects both higher home values and Chatham 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.