What this calculator does
The Atlanta property tax calculator applies the actual Atlanta method — not a national average — to estimate a yearly bill. Georgia taxes property on 40% of fair market value. In the Fulton County part of Atlanta, the city and county millage totaled about 40.9 mills in 2025. Homestead exemptions differ by levy, and Atlanta and its schools use floating homestead exemptions that limit how quickly a home's taxable value can grow.
How to use it
- Use the fair market value from your annual assessment notice.
- Tick the exemptions you qualify for.
- Adjust the rate if your bill shows a different one — rates differ by neighborhood and change each year.
- Read the step-by-step table to see how the value becomes a bill.
The formula
Georgia taxes 40% of fair market value, so a millage rate of about 41 mills works out to roughly 1.6% of value before homestead exemptions. Here that works out to an effective rate of 1.34% of the value you entered. Exemptions lower this bill by about $1,227 a year.
Worked example for Atlanta
| Step | Amount |
|---|---|
| Fair market value | $420,000 |
| Assessed value (40%) | $168,000 |
| Homestead exemption (assessed value) | -$30,000 |
| Net assessed value | $138,000 |
| Tax at 40.909 mills | $5,645 |
| Estimated annual property tax | $5,645 |
Estimated annual property tax: $5,645.
What affects property tax in Atlanta
Assessments, rates and exemptions each move the bill. In Atlanta, rates are set by the local governments that serve each address, so two homes of the same value in different neighborhoods — for example Midtown, Old Fourth Ward, Inman Park — can pay different amounts.
Atlanta property tax at common home values
Georgia taxes 40% of fair market value, then subtracts any homestead exemption from that assessed value before the millage rate applies. The table uses this page’s default millage rate and homestead exemption.
| Fair market value | Without homestead | With homestead | Monthly with homestead |
|---|---|---|---|
| $300,000 | $4,909 | $3,682 | $307 |
| $450,000 | $7,364 | $6,136 | $511 |
| $600,000 | $9,818 | $8,591 | $716 |
| $800,000 | $13,091 | $11,864 | $989 |
| $1,000,000 | $16,364 | $15,136 | $1,261 |
Homestead exemptions in Fulton and DeKalb counties must be applied for, usually by April 1, and they start in the following tax year if you miss the deadline. Some homestead exemptions also limit how fast the taxable value can grow, which is a larger long-term benefit than the first-year saving shown here.
Common mistakes and tips
- Using the listing price when the tax is based on a different assessed value.
- Missing an exemption deadline — most exemptions require an application.
- Assuming the seller's bill will be yours; many places reassess after a sale.
- Not checking the assessment notice for errors in square footage or condition.
Frequently asked questions
How much is property tax in Atlanta?
With the default inputs on this page, about $5,645 a year. Exemptions lower this bill by about $1,227 a year.
Why does Georgia use 40% of value?
Georgia law assesses property at 40% of fair market value, and millage rates apply to that assessed value.
How do I apply for an Atlanta homestead exemption?
Apply with the Fulton or DeKalb board of assessors by April 1 of the year you want it to start.
Is this my exact bill?
No. It estimates the main pieces. Special assessments, penalties and local charges can change the final amount.
Sources
Disclaimer
This calculator provides estimates for educational purposes only and is not financial, tax, legal, real estate, or insurance advice. Consult a licensed professional before making decisions.