What are the property tax rates and typical annual tax bills for single-family homes in Fulton County vs. DeKalb County in October 2026

Basic framework. Property taxes in both Fulton County and DeKalb County are calculated by applying a millage rate to an assessed value that is derived from the propertys market value. The assessed value is normally a fraction of market value as defined by Georgia law, and that assessed value is what county and local taxing authorities multiply by their millage rates to produce a tax bill.

Assessment and fair market value

Assessed value defined. Georgia requires assessors to estimate fair market value, then apply the state assessment ratio for residential property to arrive at assessed value. For a buyer or seller in Atlanta, that means you should always check the county assessor record for the property you are considering to see the market value, assessed value, and last appraisal date.

Millage rate and components

Millage explained. A millage rate is expressed in mills per dollar of assessed value. Multiple taxing authorities contribute millage rates, including the county, school district, municipal government, and any special service districts or bond issues. That means two houses with the same assessed value can have different bills if one sits in a city or special district that levies additional mills.

2. Typical millage components and where to check them

Quick answer. Both Fulton and DeKalb tax bills include county mills, school mills, and sometimes city and special district mills; you should check the official county millage tables for exact current rates for October 2026.

County millage

Where to verify. Fulton County and DeKalb County publish their millage rates on their official websites and in the annual tax commissioner tables. For any property in Atlanta, check the county assessor or tax commissioner page that corresponds to the propertys physical address to get the exact collection of mills that apply.

Municipal and school millage

City and school impacts. City mills apply when the house is inside a municipality such as Atlanta, Sandy Springs, or Decatur. School mills will come from either Fulton County School District or DeKalb County School District depending on location. Those separate components are listed individually on the tax bill so you can see how much each authority collects.

Special districts and bonds

Extra levies. Tax bills can include millage for fire districts, library districts, park bonds, or other voted measures. Those may differ street by street inside the same county. Always review the parcel record online or the propertys tax bill to confirm which voted measures apply to that address.

3. Sample annual tax bill calculations for single-family homes

Direct answer. Below are example calculations you can use as templates to estimate an annual tax bill for a single-family home in Fulton County or DeKalb County, using the propertys assessed value and the sum of applicable millage rates.

How to calculate. Formula to use is simple: Tax bill equals assessed value divided by 1000, multiplied by total mills. Example numbers below are illustrative; get current mills and assessed value for the exact parcel for October 2026.

• Example 1, Fulton in-city single-family: Assessed value: $300,000, Total mills: 35.00, Estimated annual tax: $10,500 using the calculation assessed value divided by 1000 times mills.
• Example 2, DeKalb near Decatur single-family: Assessed value: $300,000, Total mills: 32.00, Estimated annual tax: $9,600 using the same calculation.
• Adjusting for assessment ratio and exemptions: If homestead exemptions apply they reduce the assessed value before mills are applied; verified exemption amounts are shown on the county assessor site for each parcel.

Note on figures. The examples above are templates, not official bills. Use the county assessor and tax commissioner pages to pull the precise assessed value and current millage for October 2026 for the address you care about.

4. Steps you can take to estimate or appeal your bill

Quick steps. To estimate or contest a tax bill for a single-family home in Fulton or DeKalb, pull the parcel record, gather 3 to 6 comparable sales, check exemptions, and follow the county appeal timeline.

Pull the right comparable sales

Comparable guidance. Select comps sold within the last 12 months, within the same tax parcel neighborhood, and with similar lot size and finished square footage. For Atlanta neighborhoods like Buckhead, Virginia Highland, or East Lake, distances that matter will be short because block-to-block differences affect value and assessed results.

Where to get official millage rates and property records

Official sources. Use the Fulton County Tax Commissioner site or DeKalb County Tax Commissioner site to download the current millage tables and to view parcel-specific bills. Those pages also list deadlines and forms for appeals and homestead exemption applications.

Appeal timeline. Each county sets its own deadline and process for filing a petition to the board of equalization. If you think a recent assessment does not reflect the market, gather evidence promptly and submit the required forms by the county deadlines.

5. Local factors for Atlanta home buyers and sellers to consider

Short answer. Beyond mills and assessed value, buyers and sellers should account for municipal annexations, special tax districts, and how homestead exemptions will affect monthly mortgage escrow and closing costs in Atlanta.

Neighborhood amenities and tax districts

Local context. Areas inside Atlanta city limits, Sandy Springs, or Decatur may have different combinations of mills than unincorporated parts of Fulton or DeKalb. Parks like Piedmont Park, landmarks like the Atlanta BeltLine, and transit stations can influence assessed values because they affect market value, which then flows through to assessed value.

Budgeting for escrow and closing

Practical budgeting. When buying a home in Atlanta, ask your lender to estimate annual property taxes for the specific parcel so escrowed monthly payments reflect the real bill. Use the countys online parcel record to verify the assessed value and mills before finalizing your loan documents.

Local expert help. If you want help pulling the exact assessed value, millage table, and sample tax bill for a specific Atlanta address, contact me, Haja Sow, and I will pull the parcel record and walk you through the numbers.

National context link. For perspective on how property taxes compare nationally, see this Forbes data table on property tax burdens.