How much is Georgia's gas tax?

Georgia's state gasoline excise tax is about 33.1 cents per gallon (2024), adjusted annually for inflation and fuel efficiency. Diesel is taxed at a slightly higher rate of roughly 37 cents per gallon.

Is there a federal gas tax too?

Yes. The federal excise tax adds 18.4 cents per gallon on gasoline and 24.4 cents on diesel, on top of Georgia's state tax. Both are baked into the pump price, so you pay them every time you fill up.

Does Georgia charge sales tax on gasoline?

Georgia exempts motor fuel from the regular state sales tax, replacing it with the per-gallon excise tax described above. Some local jurisdictions may apply small additional fuel charges, but there is no general sales tax stacked on gas.

How is tax per mile calculated?

The tool divides your total gallons by miles driven using your fuel economy, then multiplies the gallons by the combined per-gallon tax. Better fuel economy means fewer gallons and therefore less fuel tax per mile.

Why does the Georgia rate change each year?

Georgia indexes its motor fuel excise to inflation and average fuel efficiency, so the per-gallon rate is recalculated annually. The state has also suspended the tax temporarily during fuel-price spikes in the past.

Georgia Gas Tax Calculator

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Every gallon you pump in Georgia includes both a state and a federal fuel tax built into the price. This calculator turns your tank size or annual mileage into the actual fuel tax you pay, including a useful tax-per-mile figure.

How it works

The tax is a flat amount per gallon, not a percentage of price:

Georgia gasoline excise   ~33.1 cents/gallon (2024, indexed annually)
Federal excise            18.4 cents/gallon
combined                  ~51.5 cents/gallon

The tool converts your driving into gallons and multiplies:

gallons      = miles driven / miles per gallon   (or tank size for one fill-up)
fuel tax     = gallons * combined per-gallon rate
tax per mile = fuel tax / miles driven

Example

Driving 12,000 miles a year at 25 mpg burns 480 gallons. At a combined ~51.5 cents per gallon, that is about $247 of fuel tax per year, or roughly 2.1 cents per mile — split into about $159 to Georgia and $88 to the federal government.

Notes

This is an estimate using approximate 2024 rates. Georgia’s indexed rate changes yearly and has been suspended during price emergencies, and diesel is taxed higher than gasoline. Verify the current rate at dor.georgia.gov.