Georgia property tax rates are set locally, not statewide, so what you pay depends on where you live; the statewide average effective rate works out to roughly 0.79% of a home’s market value. Every county assesses property at 40% of fair market value under state law, and the county commission, city council, and school board each adopt their own millage rate each year to fund their budgets. Add those millage rates together, multiply by your assessed value, and you have your bill.
How Your Tax Bill Is Calculated
Two numbers drive everything: your assessed value and the combined millage rate.
The county Board of Tax Assessors sets fair market value using recent sales of comparable homes, property characteristics, and local market trends. Fair market value is the price an informed, willing buyer would pay an informed, willing seller under normal conditions. Georgia law then applies a flat 40% ratio to turn that number into your taxable assessed value.1Justia. Georgia Code 48-5-7 – Assessment of Tangible Property A home with a fair market value of $350,000 has an assessed value of $140,000. That $140,000 is the figure every millage rate multiplies against.
A mill equals one-tenth of one cent, or $1 of tax for every $1,000 of assessed value.2FindLaw. Georgia Code 48-5-32.1 – Property Tax Millage Rates Say the county levies 12 mills, the school board 18 mills, and the city 5 mills. Combined, that is 35 mills. On a $140,000 assessed value, the bill comes to $4,900. School boards alone often account for half or more of the total levy, so even modest shifts in school millage move your bill noticeably.
Before adopting rates each year, each taxing authority must publish the proposed figures and hold advertised public meetings.3Justia. Georgia Code 48-5-32 – Publication by County of Ad Valorem Tax Rate That is where rates are actually set, and where residents can push back before the number becomes final.
Why Two Identical Homes Can Pay Very Different Taxes
Because millage is set by county, city, and school district, two homes with the same market value in different jurisdictions can produce bills that look nothing alike. One county might combine 25 mills across all authorities while a neighbor runs 40 or more. The 0.79% statewide average effective rate is useful as a benchmark, but your actual effective rate depends entirely on which local governments are stacking millage on your parcel.
Your assessment notice and your tax bill both show the millage breakdown. Looking at them side by side tells you which authority is driving the number.
Exemptions That Reduce What You Pay
Georgia’s standard state homestead exemption shields $2,000 of assessed value from county and school taxes, though it does not apply to municipal taxes or bonded debt.4Justia. Georgia Code 48-5-44 – Exemption of Homestead At 30 mills, that works out to roughly $60 a year. The meaningful savings usually come from county-level exemptions adopted through local legislation, which commonly take $10,000 to $40,000 or more off assessed value.5Department of Revenue. Property Tax Homestead Exemptions Check what your specific county offers; the variation is wide.
To qualify, you must own and occupy the home as your primary residence as of January 1 of the tax year. Applications can be filed any time during the prior year up through April 1. Georgia also allows late applications up to the end of the 45-day window for appealing your annual assessment notice.
Seniors
Homeowners 65 or older can claim a $4,000 exemption from all county ad valorem taxes if household income (including a spouse) did not exceed $10,000 the prior year.5Department of Revenue. Property Tax Homestead Exemptions Several counties freeze the assessed value of a senior’s home at its base-year level, blocking future increases. Some county-level senior exemptions eliminate school taxes entirely for residents 65 and older, which is often the biggest single line on the bill.
Disabled Veterans and Surviving Spouses
A qualifying disabled veteran can exempt the greater of $32,500 or the maximum amount set annually under federal law from all ad valorem taxes on a homestead. For 2026, the federally adjusted figure is $126,526.5Department of Revenue. Property Tax Homestead Exemptions The same amount applies to the unremarried surviving spouse of a service member killed in action. Surviving spouses of peace officers or firefighters killed in the line of duty receive a full-value homestead exemption and pay no ad valorem taxes on the home for as long as they live there and do not remarry.
If the Assessment Looks Too High
Every spring the county mails an Annual Notice of Assessment showing what it believes your property is worth. You have 45 days from the date on that notice to file an appeal using the PT-311A form.6Georgia Department of Revenue. PT-311A Appeal of Assessment Form You pick a ground: value, taxability, or uniformity. Most homeowners file on value, backing it with recent sales of comparable homes, photographs of condition issues, or a professional appraisal.
Once filed, the Board of Tax Assessors has 180 days to respond. If the board misses that window, the value you asserted on your appeal becomes the assessed value for the year. In counties with appeals exceeding 3% of total parcels, the board gets another 180 days, but the same consequence applies if the extended deadline passes.7Justia. Georgia Code 48-5-311 – Creation of County Boards of Equalization
If the county holds its ground, the appeal moves to the county Board of Equalization, a three-member panel that must schedule a hearing within 15 days and hold it within 30 days of notifying you. After that, you can appeal to Superior Court for a $25 filing fee, and at that stage the county carries the burden of proving its valuation is correct.
Deadlines and What Late Payment Costs
Georgia does not have a single statewide due date. Each county sets its own billing schedule, typically falling sometime in the fall, and your bill will state the exact date. If you have a mortgage with an escrow account, your servicer collects monthly estimates and pays the bill directly, and federal rules require an annual escrow analysis with any surplus of $50 or more refunded within 30 days.8Consumer Financial Protection Bureau. Escrow Accounts
Missing the deadline is expensive. If the tax stays unpaid 120 days past the due date, the county adds a 5% penalty on the outstanding balance. Another 5% follows every 120 days the balance remains unpaid, up to a cumulative cap of 20%.9Justia. Georgia Code 48-2-44 – Penalty and Interest on Failure to Pay Interest also accrues monthly at the federal bank prime rate plus 3%, and any partial month counts as a full month.10Justia. Georgia Code 48-2-40 – Rate of Interest on Past Due Taxes A few days late into a new month costs you the whole month in interest.