Is my Whitemarsh Island property tax too high?

The median annual property tax bill in Whitemarsh Island is $3,420. Using Chatham County's millage rate of 3.371%, the computed tax on the median home ($399,700) is approximately $5,389. If your assessed value is higher than what your home would actually sell for, you are overpaying.

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.

How much of my income goes to property taxes in Whitemarsh Island?

At the median, Whitemarsh Island homeowners pay 3.36% of their household income ($101,729/year) in property taxes. That is a significant burden -- a successful appeal directly increases your take-home.

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 do Whitemarsh Island property taxes compare to Wilmington Island?

Wilmington Island leads Chatham County with a median home value of $404,900, compared to Whitemarsh Island's $399,700. But a lower county ranking does not mean your individual home is correctly assessed -- overassessments happen at every price point.

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.

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.

Whitemarsh Island, GA: Is Your Property Tax Assessment Too High? (2026)

By AppealAlly Team · Published April 1, 2026

The median Whitemarsh Island homeowner pays $3,420/year in property taxes. That is 3.36% of median household income. See how Whitemarsh Island compares and check your savings potential.

Key Takeaways

Appeal deadline: 45 days from your assessment notice date - strictly enforced.Median home value: $399,700 in Whitemarsh Island.Median annual tax bill: $3,420.Tax burden: 3.36% of median household income in Whitemarsh Island.Potential savings: ~$538/year from a 10% reduction, or $1,614 over 3 years with the 299c freeze.Filed with: Chatham County Board of Assessors (not the city).No risk: Georgia law guarantees your assessment cannot increase from filing an appeal.

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.

Whitemarsh Island Appeal Quick Facts

Appeal Deadline: 45 days from the date of the assessment notice
Appeal Form: PT-311A
Filed With: Chatham County Board of Assessors
Assessor Phone: 912-652-7271
Median Home Value: $399,700 (32% above Chatham County median)
Estimated Annual Tax Bill: $3,420
Tax Burden: 3.36% of median household income

Is your Whitemarsh Island property tax assessment too high?

The median home in Whitemarsh Island is valued at $399,700, producing an estimated annual tax bill of $5,389 at Chatham County's 3.371% combined rate. That means the typical Whitemarsh Island homeowner spends 3.36% of household income on property taxes alone. Whitemarsh Island combines higher-than-average home values with a heavy tax burden. If your home is overassessed by even 10%, the cost adds up fast. Higher home values mean a larger tax bill and a bigger payoff from a successful appeal. At $399,700, Whitemarsh Island home values are 32% above the Chatham County median, 134% above Georgia's statewide median of $170,200, 25% above the national median of $318,000.

Check If Your Whitemarsh Island Home Is Overassessed

How does Whitemarsh Island compare to other Chatham County cities?

Wilmington Island leads Chatham County in home values, but your individual assessment could still be too high regardless of where Whitemarsh Island falls in the county ranking.

What evidence matters for Whitemarsh Island appeals?

In a mid-size city like Whitemarsh Island, you should be able to find 3-5 comparable sales within Chatham County. Look for homes that sold in the last 12 months with similar square footage, age, and condition. If local sales are limited, expand your search to neighboring areas within the county. For the full evidence strategy, exemption details, and step-by-step filing instructions, see our Chatham County Property Tax Guide.

How much can you save in Whitemarsh Island?

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 value freeze.

At 3.36% of household income, even a modest reduction in your assessed value makes a real difference in your annual budget.

File your appeal through Chatham County

Property tax appeals in Whitemarsh Island are filed with the Chatham County Board of Assessors. You have 45 days from the date of your assessment notice to submit a PT-311A form.

Chatham County Board of Assessors: P.O. Box 9786, Savannah, GA 31412 | 912-652-7271 For the full appeal process and deadline details, see our Chatham County Property Tax Guide.

Other Cities in Chatham County

Explore Chatham County

Based on 2024 American Community Survey estimates and Chatham County millage rates.

Frequently Asked Questions

Is my Whitemarsh Island property tax too high?: The median annual property tax bill in Whitemarsh Island is $3,420. Using Chatham County's millage rate of 3.371%, the computed tax on the median home ($399,700) is approximately $5,389. If your assessed value is higher than what your home would actually sell for, you are overpaying.
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.
How much of my income goes to property taxes in Whitemarsh Island?: At the median, Whitemarsh Island homeowners pay 3.36% of their household income ($101,729/year) in property taxes. That is a significant burden -- a successful appeal directly increases your take-home.
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 do Whitemarsh Island property taxes compare to Wilmington Island?: Wilmington Island leads Chatham County with a median home value of $404,900, compared to Whitemarsh Island's $399,700. But a lower county ranking does not mean your individual home is correctly assessed -- overassessments happen at every price point.
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.
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.