Cobb County, Georgia Property Taxes
Property Taxes in Cobb County, Georgia
Median Cobb County effective property tax rate: 0.98%, significantly lower than the national median of 1.02%.
Median Cobb County home value: $401,460
Median annual Cobb County tax bill: $3,337, higher than the national median property tax bill of $2,400.
How are property taxes in Cobb County calculated?
Property taxes in Cobb County are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.
Why are Cobb County property taxes important to understand?
Understanding your county's property tax system, exemptions, and reduction opportunities can lead to significant savings. Whether you live in Cobb County or another part of Cobb County, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Cobb County, Georgia Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
0.98%
Estimate Property Tax Bill
$3,934
$3,651
$774
Average Annual Tax Savings
How Does the Cobb County Property Tax Calculator Work?
Use this Cobb County property tax calculator to estimate your annual tax bill. Enter your property's assessed value and our calculator applies Cobb County's median effective tax rate of 0.98% — drawn from real transactions across the county — to generate your estimate.
Enter your property's estimated assessed value — the value the appraisal district assigns to your property, typically lower than market value after exemptions. Our calculator uses the median effective rate (actual bills divided by market value), which accounts for typical exemptions and is more accurate than applying the statutory millage rate directly.
Note: your assessed value reflects any exemptions you currently have. Rates vary across Cobb County — scroll down to explore city-level trends and find the rate specific to your area.
Cobb County's median effective tax rate is lower than Georgia's 1.00% state median, and the county's median tax bill of $3,337 is $937 lower than the state median. If your estimate is higher than expected, Ownwell can protest your Cobb County assessment.
Property Tax Rates Across Cobb County, Georgia
What Are Effective Property Tax Rates Across Cobb County?
Local government entities set tax rates, which vary widely across Cobb County. Each year, the county estimates its budget for public services and divides that total by the assessed value of all taxable property within its jurisdiction.
Below, compare Cobb County's effective property tax rate to other counties in Georgia or the U.S. median of 1.02%.
Cobb County's median effective rate stands at 0.98%, which is lower than the national median of 1.02%. Within Cobb County, the highest rate is found in Woodstock at 1.21%, while Marietta has the lowest at 0.94%.
These variations reflect differences in local school district levies, Community Improvement Districts assessments, and special district bonds — which compound the base county rate.
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Cobb County Tax Rate
0.98%
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Georgia Tax Rate
1.00%
Median Effective United States Tax Rate
1.02%
Cobb County, Georgia vs Similar Georgia Counties
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Clayton County Tax Rate
1.43%
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Dekalb County Tax Rate
1.26%
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Fulton County Tax Rate
0.75%
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Gwinnett County Tax Rate
1.26%
Property Tax Rates Across Cobb County, Georgia
| City | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Acworth | 0.23% | 0.34% | 0.99% | 1.21% | 1.21% |
| Atlanta | 0.29% | 0.37% | 1.04% | 1.21% | 1.21% |
| Austell | 0.21% | 0.85% | 1.02% | 1.21% | 1.21% |
| Clarkdale | 0.18% | 0.85% | 1.15% | 1.21% | 1.21% |
| Dallas | 0.22% | 0.26% | 0.95% | 1.11% | 1.21% |
| Hiram | 0.26% | 0.85% | 1.02% | 1.05% | 1.21% |
| Kennesaw | 0.22% | 0.34% | 1.00% | 1.21% | 1.21% |
| Lithia Springs | 0.23% | 0.34% | 1.02% | 1.21% | 1.21% |
| Mableton | 0.22% | 0.88% | 1.02% | 1.21% | 1.21% |
| Marietta | 0.20% | 0.25% | 0.94% | 1.15% | 1.21% |
| Powder Springs | 0.22% | 0.33% | 0.98% | 1.21% | 1.21% |
| Roswell | 0.21% | 0.25% | 0.98% | 1.07% | 1.21% |
| Smyrna | 0.17% | 0.80% | 0.96% | 1.09% | 1.21% |
| Woodstock | 0.22% | 0.91% | 1.21% | 1.21% | 1.21% |
| Adairsville | N/A | N/A | N/A | N/A | N/A |
| Alpharetta | N/A | N/A | N/A | N/A | N/A |
| Avondale Estates | N/A | N/A | N/A | N/A | N/A |
| Blairsville | N/A | N/A | N/A | N/A | N/A |
| Brundidge | N/A | N/A | N/A | N/A | N/A |
| Canton | N/A | N/A | N/A | N/A | N/A |
| Cartersville | N/A | N/A | N/A | N/A | N/A |
| Cave Spring | N/A | N/A | N/A | N/A | N/A |
| Columbia | N/A | N/A | N/A | N/A | N/A |
| Cumming | N/A | N/A | N/A | N/A | N/A |
| Dacula | N/A | N/A | N/A | N/A | N/A |
| Doraville | N/A | N/A | N/A | N/A | N/A |
| Duluth | N/A | N/A | N/A | N/A | N/A |
| Flovilla | N/A | N/A | N/A | N/A | N/A |
| Franklin | N/A | N/A | N/A | N/A | N/A |
| Glen Allen | N/A | N/A | N/A | N/A | N/A |
| Hialeah | N/A | N/A | N/A | N/A | N/A |
| Jersey | N/A | N/A | N/A | N/A | N/A |
| Kaneville | N/A | N/A | N/A | N/A | N/A |
| Lithonia | N/A | N/A | N/A | N/A | N/A |
| Miami | N/A | N/A | N/A | N/A | N/A |
| Newnan | N/A | N/A | N/A | N/A | N/A |
| Norcross | N/A | N/A | N/A | N/A | N/A |
| Oglethorpe | N/A | N/A | N/A | N/A | N/A |
| Oxford | N/A | N/A | N/A | N/A | N/A |
| Pompano Beach | N/A | N/A | N/A | N/A | N/A |
| Rome | N/A | N/A | N/A | N/A | N/A |
| Royston | N/A | N/A | N/A | N/A | N/A |
| Silver Spring | N/A | N/A | N/A | N/A | N/A |
| Stockbridge | N/A | N/A | N/A | N/A | N/A |
| Stone Mountain | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
$774
Average Annual Tax Savings
Save on Your Property Taxes and More With Ownwell
Property Tax Assessment Values Across Cobb County, Georgia
When examining property taxes in Cobb County, understanding the distinction between "market value" and "assessed value" is crucial.
The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The Cobb County appraisal district estimates the market value for tax purposes.
The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.
Assessment notices:
In Cobb County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of May.
Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in Cobb County.
For example, the median tax bill in Cobb County is $3,337, with tax bills ranging significantly across the county. Roswell has the highest median home price at $606,375.
Median Cobb County Market Value
$401,460
Median Georgia Market Value
$280,310
Median United States Market Value
$235,294
Cobb County, Georgia vs Similar Georgia Counties
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Clayton County Market Value
$220,600
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Dekalb County Market Value
$304,700
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Fulton County Market Value
$401,400
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Gwinnett County Market Value
$372,800
Property Tax Assessment Values Across Cobb County, Georgia
| City | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Acworth | $285,000 | $329,132 | $390,970 | $499,058 | $654,436 |
| Atlanta | $277,032 | $368,025 | $472,100 | $715,510 | $1,187,796 |
| Austell | $180,990 | $234,005 | $284,920 | $331,260 | $385,680 |
| Clarkdale | $161,802 | $180,550 | $207,520 | $240,502 | $261,736 |
| Dallas | $329,850 | $352,760 | $382,460 | $432,600 | $523,410 |
| Hiram | $322,614 | $349,290 | $381,500 | $484,075 | $671,924 |
| Kennesaw | $283,140 | $325,518 | $392,965 | $490,542 | $685,890 |
| Lithia Springs | $149,484 | $179,920 | $234,210 | $349,130 | $491,038 |
| Mableton | $208,528 | $261,458 | $361,815 | $464,220 | $602,214 |
| Marietta | $259,850 | $331,740 | $428,540 | $576,362 | $777,751 |
| Powder Springs | $243,854 | $292,045 | $363,630 | $488,120 | $637,670 |
| Roswell | $429,449 | $516,678 | $606,375 | $719,175 | $887,090 |
| Smyrna | $257,840 | $314,760 | $430,160 | $572,520 | $734,190 |
| Woodstock | $212,122 | $239,295 | $310,340 | $395,605 | $422,882 |
| Adairsville | N/A | N/A | N/A | N/A | N/A |
| Alpharetta | N/A | N/A | N/A | N/A | N/A |
| Avondale Estates | N/A | N/A | N/A | N/A | N/A |
| Blairsville | N/A | N/A | N/A | N/A | N/A |
| Brundidge | N/A | N/A | N/A | N/A | N/A |
| Canton | N/A | N/A | N/A | N/A | N/A |
| Cartersville | N/A | N/A | N/A | N/A | N/A |
| Cave Spring | N/A | N/A | N/A | N/A | N/A |
| Columbia | N/A | N/A | N/A | N/A | N/A |
| Cumming | N/A | N/A | N/A | N/A | N/A |
| Dacula | N/A | N/A | N/A | N/A | N/A |
| Doraville | N/A | N/A | N/A | N/A | N/A |
| Duluth | N/A | N/A | N/A | N/A | N/A |
| Flovilla | N/A | N/A | N/A | N/A | N/A |
| Franklin | N/A | N/A | N/A | N/A | N/A |
| Glen Allen | N/A | N/A | N/A | N/A | N/A |
| Hialeah | N/A | N/A | N/A | N/A | N/A |
| Jersey | N/A | N/A | N/A | N/A | N/A |
| Kaneville | N/A | N/A | N/A | N/A | N/A |
| Lithonia | N/A | N/A | N/A | N/A | N/A |
| Miami | N/A | N/A | N/A | N/A | N/A |
| Newnan | N/A | N/A | N/A | N/A | N/A |
| Norcross | N/A | N/A | N/A | N/A | N/A |
| Oglethorpe | N/A | N/A | N/A | N/A | N/A |
| Oxford | N/A | N/A | N/A | N/A | N/A |
| Pompano Beach | N/A | N/A | N/A | N/A | N/A |
| Rome | N/A | N/A | N/A | N/A | N/A |
| Royston | N/A | N/A | N/A | N/A | N/A |
| Silver Spring | N/A | N/A | N/A | N/A | N/A |
| Stockbridge | N/A | N/A | N/A | N/A | N/A |
| Stone Mountain | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
$774
Average Annual Tax Savings
Save on Your Property Taxes and More With Ownwell
Property Tax Bills Across Cobb County, Georgia
Property tax bills in Cobb are based on the assessed value of a home, local tax rates, and any exemptions a homeowner qualifies for. When a property’s market value rises, the assessed value can increase too, which can push the tax bill higher even if nothing changes about the home itself. For many homeowners, that means paying more each year as values move upward.
In Cobb, the median home price is $401,460, and tax bills vary widely across the county. The 25th percentile tax bill is $1,450, while the 75th percentile is $4,809 and the 90th percentile reaches $6,768. Roswell has the highest median tax bill at $5,145, while Clarkdale has the lowest at $2,102.
Ownwell helps homeowners lower their property tax bills by reviewing assessments, identifying potential savings, and filing appeals when a home is overassessed. That can make a meaningful difference for homeowners facing rising property taxes.
Median Cobb County Tax Bill
$3,337
Median Georgia Tax Bill
$2,476
Median United States Tax Bill
$2,400
Cobb County, Georgia vs Similar Georgia Counties
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Clayton County Tax Bill
$2,954
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Dekalb County Tax Bill
$3,993
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Fulton County Tax Bill
$2,523
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Gwinnett County Tax Bill
$4,650
Property Tax Bills Across Cobb County, Georgia
| City | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Acworth | $882 | $1,753 | $3,644 | $4,753 | $6,350 |
| Atlanta | $1,539 | $2,505 | $4,147 | $5,806 | $9,221 |
| Austell | $593 | $1,731 | $2,734 | $3,434 | $4,096 |
| Clarkdale | $402 | $1,479 | $2,102 | $2,540 | $2,903 |
| Dallas | $782 | $1,124 | $3,658 | $4,406 | $5,166 |
| Hiram | $1,229 | $3,026 | $3,611 | $4,302 | $4,797 |
| Kennesaw | $863 | $1,967 | $3,646 | $4,695 | $6,424 |
| Lithia Springs | $481 | $1,011 | $2,102 | $3,719 | $4,868 |
| Mableton | $805 | $2,150 | $3,404 | $4,651 | $6,008 |
| Marietta | $710 | $1,149 | $3,115 | $4,918 | $7,244 |
| Powder Springs | $733 | $1,605 | $3,203 | $4,513 | $6,173 |
| Roswell | $1,186 | $1,604 | $5,145 | $6,891 | $8,704 |
| Smyrna | $679 | $2,345 | $3,686 | $5,283 | $6,935 |
| Woodstock | $832 | $2,299 | $2,997 | $3,935 | $4,681 |
| Adairsville | N/A | N/A | N/A | N/A | N/A |
| Alpharetta | N/A | N/A | N/A | N/A | N/A |
| Avondale Estates | N/A | N/A | N/A | N/A | N/A |
| Blairsville | N/A | N/A | N/A | N/A | N/A |
| Brundidge | N/A | N/A | N/A | N/A | N/A |
| Canton | N/A | N/A | N/A | N/A | N/A |
| Cartersville | N/A | N/A | N/A | N/A | N/A |
| Cave Spring | N/A | N/A | N/A | N/A | N/A |
| Columbia | N/A | N/A | N/A | N/A | N/A |
| Cumming | N/A | N/A | N/A | N/A | N/A |
| Dacula | N/A | N/A | N/A | N/A | N/A |
| Doraville | N/A | N/A | N/A | N/A | N/A |
| Duluth | N/A | N/A | N/A | N/A | N/A |
| Flovilla | N/A | N/A | N/A | N/A | N/A |
| Franklin | N/A | N/A | N/A | N/A | N/A |
| Glen Allen | N/A | N/A | N/A | N/A | N/A |
| Hialeah | N/A | N/A | N/A | N/A | N/A |
| Jersey | N/A | N/A | N/A | N/A | N/A |
| Kaneville | N/A | N/A | N/A | N/A | N/A |
| Lithonia | N/A | N/A | N/A | N/A | N/A |
| Miami | N/A | N/A | N/A | N/A | N/A |
| Newnan | N/A | N/A | N/A | N/A | N/A |
| Norcross | N/A | N/A | N/A | N/A | N/A |
| Oglethorpe | N/A | N/A | N/A | N/A | N/A |
| Oxford | N/A | N/A | N/A | N/A | N/A |
| Pompano Beach | N/A | N/A | N/A | N/A | N/A |
| Rome | N/A | N/A | N/A | N/A | N/A |
| Royston | N/A | N/A | N/A | N/A | N/A |
| Silver Spring | N/A | N/A | N/A | N/A | N/A |
| Stockbridge | N/A | N/A | N/A | N/A | N/A |
| Stone Mountain | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
$774
Average Annual Tax Savings
Save on Your Property Taxes and More With Ownwell
Want to lower your Cobb County property taxes?
How Can I Lower My Property Taxes in Cobb County?
Looking to reduce your Cobb County property taxes? Ownwell is the leading property tax appeal company serving Cobb County. We specialize in helping property owners in the Atlanta area and beyond lower their tax bills by working directly with the Cobb County Board of Tax Assessors.
Through our tax monitoring service, we collect all necessary information to maximize your tax reductions. We navigate the complexities of the Cobb County property tax appeal process and identify all available exemptions, so you don't have to.
Whether you are a homeowner, a real estate investor, or an asset manager, our local team at Ownwell has the expertise to assess your current property tax situation and find strategic opportunities for reducing your tax burden.
Property Tax Appeals in Georgia
How does the property tax protest process work in Cobb County, Georgia? Homeowners can challenge their property tax assessments if they believe the assessed value is too high. The process begins with a review of the notice from the Assessor’s Office, where property owners compare the county’s valuation with the market value of their home and decide whether to file an appeal before the deadline.
What happens after a property tax appeal is filed? Once the appeal is submitted, the case moves through the county’s review process and may be heard by the board that listens to appeals. Homeowners can present evidence that supports a lower assessed value, such as comparable sales or other relevant information about the property. The board reviews the appeal and determines whether the assessment should stay the same or be adjusted.
What are the possible outcomes of a property tax protest? The assessment may be reduced, which can lower the property tax bill, or it may remain unchanged if the county believes the original value is correct. In some cases, the review can also lead to a different valuation that better reflects the property’s market value.
How can Ownwell help with the appeal process? Ownwell helps homeowners navigate the property tax protest from start to finish by reviewing assessments, identifying appeal opportunities, and preparing a strong case for the board. With expert guidance, homeowners can better understand their options and pursue a fair assessment with less stress and less guesswork.
Exemptions in Georgia
What property tax exemptions are available in Cobb County, Georgia?
Cobb County homeowners may qualify for several property tax exemption programs, with the most important being the homestead exemption for a primary residence. This exemption is designed for homeowners who live in the home as their permanent residence and can reduce the assessed value of that property for tax purposes. It is one of the most common ways to lower a property tax bill on a primary home.
Who is eligible for these exemptions?
Eligibility depends on the exemption type. The homestead exemption generally applies to owner-occupied homes that are the homeowner’s primary residence. Additional exemptions may be available for seniors, people with disabilities, and certain veterans or surviving spouses, depending on the rules that apply in Cobb County and Georgia.
How do homeowners apply for exemptions?
Homeowners usually need to submit an application to the county and provide proof of ownership and residency. For a homestead exemption, that often means showing that the property is your primary residence. It is important to apply as soon as you become eligible so you do not miss out on savings.
How can Ownwell help?
Ownwell helps homeowners identify the exemptions they may qualify for, including primary residence homestead exemptions and other available relief programs. We make the process easier by helping you understand eligibility, gather the right information, and take advantage of every exemption available in Cobb County.
Available Exemptions
Senior
Disabled
Home Stead
Veteran
Non-Profit
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | July 13 |
| Tax Bill | |
| Issued | September 1 |
| Due Date #1 | October 15 |
Links | |
|---|---|
| Cobb Assessor's Office | |
| Phone | (770) 528-3100 |
| Website | qpublic.schneidercorp.com |
| Stephen.White@cobbcounty.org | |