Forsyth County Property Tax: Millage, Exemptions, and Penalties

The Forsyth County property tax rate for the 2026 fiscal year is 24.522 mills combined, which works out to about $24.52 per $1,000 of assessed value. School taxes make up 16.626 mills of that total, and county government, fire services, and debt service account for the remaining 7.896 mills.¹ Georgia assesses property at 40 percent of fair market value, so the millage rate applies to a much smaller number than the home’s market price, and the effective rate on full market value is lower than 24.522 mills suggests. Homes inside the City of Cumming pay an additional municipal millage on top.

What Makes Up the 24.522 Mills

The Forsyth County Board of Commissioners adopted the following rates in August 2025 for the 2026 budget year:¹

County Maintenance and Operations: 4.791 mills
County Fire District: 2.805 mills
County Bond: 0.300 mills
School Maintenance and Operations: 15.208 mills
School Bonds: 1.418 mills

School taxes are more than double the county portion, which is why the school line dominates almost every Forsyth County tax bill. Three separate bodies set these rates: the Board of Commissioners controls the county and fire numbers, the Board of Education controls the school numbers, and the Cumming City Council sets its own municipal rate for properties inside city limits.²

How the Rate Translates to a Real Tax Bill

Georgia law requires all taxable property to be assessed at 40 percent of its fair market value.³ The Forsyth County Board of Tax Assessors sets that fair market value each year from recent sales data and local market conditions.⁴ Take that 40 percent number, multiply by the millage rate, and divide by 1,000. That’s your tax.

For a home with a fair market value of $400,000:

Assessed value: $400,000 × 40% = $160,000
County, fire, and bond taxes: $160,000 × 7.896 ÷ 1,000 = about $1,263
School and school bond taxes: $160,000 × 16.626 ÷ 1,000 = about $2,660
Total before exemptions: roughly $3,923

Homestead exemptions come off the assessed value before the millage is applied, so they reduce each line item on the bill. City of Cumming residents add a separate municipal line.

Exemptions That Lower What You Actually Pay

To qualify for any homestead exemption in Forsyth County, you must have owned and occupied the home as your primary residence on January 1 of the tax year. Applications are traditionally due by April 1, though Georgia law now lets you apply through the end of your 45-day assessment notice appeal window if you miss April.⁵

Standard Homestead Exemption

The basic Georgia homestead exemption subtracts $2,000 from your 40 percent assessed value for county and school tax purposes.⁵ The direct savings are small, but filing for it is what makes you eligible for the more valuable floating exemption.

Floating Homestead Exemption

Forsyth County’s floating homestead exemption freezes the county and fire portions of your bill at a base-year value. When your home appreciates, school and state taxes rise with the new assessed value, but county and fire taxes stay calculated on the original base-year figure as long as the millage rate doesn’t increase.⁶ You get it automatically when you file for the standard homestead exemption. In a market where values climb quickly, the annual savings on the county and fire lines can run into hundreds of dollars.

Senior School Tax Exemption

Homeowners who turn 65 on or before January 1 of the tax year can receive a full exemption from school maintenance and operations taxes and school bond taxes.⁶ Because the school portion is roughly two-thirds of a Forsyth County tax bill, this is the largest single exemption available to most residents. You must submit proof of age. The exemption does not apply if unrelated minor children live in the home, with limited carveouts for foster children, grandchildren under guardianship, and temporary residents staying less than a year.

Disabled Veterans and Surviving Spouses

Disabled veterans qualify for exemptions of $121,812 on school, bond, and state taxes, and $159,812 on county and fire taxes.⁶ The unremarried surviving spouse of a peace officer or firefighter killed in the line of duty receives a full-value homestead exemption for as long as they occupy the home.⁵ Most exemptions renew automatically once approved, unless ownership changes.

If the Assessed Value Looks Too High

The rate is only half of the equation. The other half is the fair market value the Board of Tax Assessors puts on your property. Every year the board mails a Notice of Assessment showing the current fair market value, the 40 percent assessed value, and any exemptions on file. In 2025, real property notices went out the week of June 17.⁷ The notice is not a bill.

You have 45 days from the date on the notice to file a formal appeal.⁷ Appeals go to the Forsyth County Board of Tax Assessors on state form PT-311A, not to the Georgia Department of Revenue.⁸ Miss the 45 days and the value stands for the whole tax year.

When you file, you choose an appeal path:⁹

The Board of Equalization, a Grand Jury-appointed panel that reviews cases at no cost, with either side able to appeal onward to Superior Court.
Nonbinding arbitration, where you and the county each pay for your own arbitrator and split the cost of a third if needed.
Binding arbitration, where you submit a certified appraisal within 30 days and the arbitrator picks either your number or the county’s, with the loser paying the fee.

Once the Board of Tax Assessors receives your appeal, it has 180 days to respond. If it doesn’t, your claimed value becomes the assessed value for that year.⁹ A successful appeal can also lock in the reduced value for the appeal year plus the next two tax years, provided the reduction comes through a formal channel and you don’t sell, substantially improve, or re-appeal the property in the meantime.

Paying the Bill and Late Penalties

Forsyth County issues one property tax bill per year, typically in the fall, with payment due November 15. The Tax Commissioner’s office accepts payment online (electronic check for a $1.50 fee, or credit and debit cards with a separate processing fee), by mail, through secure drop boxes for after-hours check payments, and in person in Cumming. You can pull up your bill on the Tax Commissioner’s website using your name, property address, or parcel ID.

Partial payments are accepted, and you can make as many as you need.¹⁰ Just know that partial payment doesn’t stop the clock: interest and penalties keep accruing on whatever is unpaid after November 15, and any account with a balance can still land in tax-lien territory.

Georgia law adds a 5 percent penalty once a bill is 120 days late, another 5 percent every 120 days after that, up to 20 percent total. Interest accrues monthly on the unpaid balance.¹¹ These penalties don’t apply to homestead property with a tax bill of $500 or less. Long-term nonpayment can lead to a tax lien and eventually a tax sale on the courthouse steps.¹²

1
Forsyth County Georgia. Forsyth County Commission Adopts Millage Rates
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Georgia Department of Revenue. Property Tax Millage Rates
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Justia. Georgia Code 48-5-7 – Assessment of Tangible Property
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Georgia Department of Revenue. Property Tax Valuation
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Georgia Department of Revenue. Property Tax Homestead Exemptions
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Forsyth County Georgia. Homestead and Other Exemptions
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Forsyth County Georgia. Assessments
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Georgia Department of Revenue. PT-311A Appeal of Assessment Form
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Justia. Georgia Code 48-5-311 – Creation of County Boards of Equalization
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Forsyth County Tax Commissioner. Property Taxes
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Justia. Georgia Code 48-2-44 – Penalty and Interest on Failure to Pay Ad Valorem Tax
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Forsyth County Tax Commissioner. Tax Sales/Excess Funds