The Lawrenceville, GA property tax rate works out to roughly 34.86 mills once every levy is stacked together, meaning about $34.86 in tax for each $1,000 of assessed value. That total is split between two bills: Gwinnett County collects 31.6 mills covering county and school taxes, and the City of Lawrenceville separately collects 3.26 mills of its own.1Gwinnett County Tax Commissioner. Millage Rates2City of Lawrenceville. City of Lawrenceville Keeps Millage Rate Steady for 2025 Paying one does not satisfy the other.
What Makes Up the 34.86 Mills
A mill is one dollar of tax per $1,000 of assessed value. Each taxing authority sets its own millage rate every year after public hearings, and the rates get added together to produce your total.
For 2025, the Gwinnett County portion billed to Lawrenceville properties totals 31.6 mills:1Gwinnett County Tax Commissioner. Millage Rates
- County general fund: 6.95 mills
- School operations: 18.7 mills
- School bond: 1.45 mills
- Recreation: 1.0 mill
- Fire and EMS: 3.2 mills
- Economic development: 0.3 mills
The City of Lawrenceville adds another 3.26 mills, a rate the city has held steady for multiple years.2City of Lawrenceville. City of Lawrenceville Keeps Millage Rate Steady for 2025 Combined, that produces the roughly 34.86-mill total. School operations and the school bond together make up more than half of what you owe. The county’s general fund millage also held at 6.95 mills for 2025, though nothing locks that in for future years.3Gwinnett County Government. Board Holds General Fund Millage Rate Steady
Assessed Value: The 40 Percent Rule
Georgia law assesses taxable property at 40% of its fair market value, not the full market figure.4Justia. Georgia Code 48-5-7 – Assessment of Tangible Property A home worth $400,000 on the open market has an assessed value of $160,000, and the millage rates apply only to that $160,000.
The Gwinnett County Board of Assessors sets fair market values for every parcel in the county, Lawrenceville included.5Gwinnett County Government. Assessors’ Office Each spring the office mails an Annual Notice of Assessment showing the prior year’s value, the current year’s value, and any exemptions that will apply.6Gwinnett County Government. Board of Assessors Mail Notices for 2026 Assessed Property Values This notice is not a tax bill. It’s the document to check for errors and the trigger for the appeal clock.
Calculating What You’ll Owe
Once you know the rate and the assessed value, the math is simple. Here is a Lawrenceville home with a $400,000 fair market value and no exemptions:
- Fair market value: $400,000
- Assessed value (40%): $160,000
- County-billed taxes (31.6 mills): $160,000 × 0.0316 = $5,056
- City taxes (3.26 mills): $160,000 × 0.00326 = $521.60
- Total annual property tax: about $5,578
Exemptions come off the assessed value before the millage rates are applied, so they lower the final bill rather than the rate itself.
Exemptions That Lower the Bill
If you own and live in your Lawrenceville home as your primary residence, you likely qualify for at least the basic state homestead exemption, which shields $2,000 of assessed value from county and school taxes.7Justia. Georgia Code 48-5-44 – Exemption of Homestead Occupied by Owner Gwinnett layers several larger local exemptions on top of that.
The L5A Senior School Tax Exemption wipes out 100% of school taxes on your home and up to one acre for homeowners aged 65 or older who meet an income limit.8Gwinnett County Tax Commissioner. Senior Exemption FAQs Because school levies make up the biggest piece of the Lawrenceville rate, this one can cut a bill by more than half. For the 2026 tax year, the income limit is $124,648, measured against line 15C of the 2025 Georgia tax return.9Gwinnett County Tax Commissioner. Available Homestead Exemptions Homeowners aged 62 and older may qualify for the S3 partial school tax exemption at a lower income threshold, and the L3A exemption cuts $20,000 off county taxes for those 65 and older who meet the income test.
Qualifying disabled veterans receive an exemption of at least $32,500, and up to $121,812 for 2025, from all property taxes on their homestead. The exemption passes to an unremarried surviving spouse or minor children. The unremarried surviving spouse of a peace officer or firefighter killed in the line of duty receives a full homestead exemption for the entire property value.10Georgia Department of Revenue. Property Tax Homestead Exemptions
The deadline to apply for any homestead exemption is April 1 of the tax year. You must own and occupy the home as your primary residence as of January 1, your driver’s license must show the Gwinnett County address, and all vehicles owned by you and your spouse must be registered there before the deadline.11Gwinnett County Tax Commissioner. About Gwinnett Homestead Exemptions Once approved, you don’t reapply unless your eligibility changes.12Gwinnett County Tax Commissioner. April 1 Is the Deadline to Apply for Gwinnett County Homestead Exemptions
Two Bills, Two Deadlines
Since 2021, the City of Lawrenceville has billed and collected its city property taxes directly rather than piggybacking on the county bill.13City of Lawrenceville. Property Taxes You will receive one envelope from Gwinnett County and a separate one from the city.
The Gwinnett County bill, covering county, school, and special district levies, is mailed in August and due by October 15. If that date lands on a weekend, the deadline moves to the following Monday. Payment can be made online with a credit card or electronic check, by mailed personal check, or in person at the Tax Commissioner’s office.14Gwinnett County Tax Commissioner. View and Pay Your Taxes
The City of Lawrenceville bill is typically mailed in mid-December with payment due in mid-February; the exact date appears on the bill itself. You can pay online through the city’s website, by mail to P.O. Box 2200, Lawrenceville, GA 30046, or in person at the Finance Department in City Hall. The city takes cash, checks, money orders, and Visa or MasterCard.13City of Lawrenceville. Property Taxes
If the Valuation Looks Wrong
The rate is fixed by the taxing authorities, but the assessed value is something you can challenge. If the fair market value on your Annual Notice of Assessment looks too high, you have 45 days from the date printed on the notice to file an appeal with the Gwinnett County Board of Tax Assessors.15Justia. Georgia Code 48-5-311 – Creation of County Boards of Equalization Miss that window and the value stands for the year.
Appeals are filed on state form PT-311A, submitted by mail, in person, or by email where the board allows electronic submission.16Georgia Department of Revenue. PT-311A Appeal of Assessment Form A strong appeal usually includes recent comparable sales, photos of conditions that drag down value, or an independent appraisal. If the assessor’s office responds with an Amended Notice carrying a revised value, you then have 30 days to accept it or push the appeal forward.17Gwinnett County Government. Property Appeals
What Late Payment Costs
Missing the county deadline triggers interest of 0.81% per month on the unpaid balance, starting the day after the due date and accruing on the second of each following month.18Gwinnett County Tax Commissioner. Deadlines and Due Dates
Penalties then stack on top. Under Georgia law, if the balance is still unpaid 120 days past the due date, a 5% penalty is added. Another 5% is added after each subsequent 120-day period, capped at 20% of the original tax owed, and interest keeps running the whole time. The 5% penalties do not apply to homestead property taxes of $500 or less.19Justia. Georgia Code 48-2-44 – Willful Failure to File Return or Pay Tax