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Gas Tax Calculator
Calculate how much gas tax you pay per gallon and per fill-up for any US state. Covers federal excise tax plus all 50 state combined rates (excise + all fees). Rates sourced from the U.S. Energy Information Administration, June 2026.
Federal gasoline excise18.4¢/gal
Federal LUST fee0.1¢/gal
Combined rate18.5¢/gal
Rates updated for June 2026
Tax on 15 gallons of gasoline
Federal tax
$2.77
Total tax
$2.77
This calculator is for informational purposes only and does not constitute tax advice. Consult a qualified tax professional for your specific situation. Rates last verified June 2026.
Verify rates on U.S. Energy Information Administration (EIA) — January 2026 State Taxes and Fees (corrected March 2026)2026 federal gas tax rates
Federal gasoline excise tax
18.4¢ per gallon
Unchanged since October 1, 1993. Funds the Highway Trust Fund.
Federal diesel excise tax
24.4¢ per gallon
Unchanged since October 1, 1993. Funds the Highway Trust Fund.
An additional 0.1¢/gal Leaking Underground Storage Tank (LUST) fee applies to both gasoline and diesel nationwide, bringing the federal combined rate to 18.5¢/gal (gasoline) and 24.5¢/gal (diesel).
Gas tax calculator by state
Select your state for a detailed breakdown including per-fill-up cost estimates.
ALAlabama
31.0¢AKAlaska
9.0¢AZArizona
19.0¢ARArkansas
24.8¢CACalifornia
72.5¢COColorado
29.2¢CTConnecticut
51.4¢DEDelaware
23.0¢DCWashington D.C.
35.7¢FLFlorida
41.1¢GAGeorgia
43.3¢HIHawaii
18.5¢IDIdaho
32.0¢ILIllinois
65.3¢INIndiana
63.5¢IAIowa
30.0¢KSKansas
25.0¢KYKentucky
16.4¢LALouisiana
20.1¢MEMaine
31.4¢MDMaryland
46.6¢MAMassachusetts
27.5¢MIMichigan
52.4¢MNMinnesota
32.6¢MSMississippi
21.4¢MOMissouri
30.0¢MNMontana
33.8¢NENebraska
32.7¢NVNevada
23.8¢NHNew Hampshire
23.8¢NJNew Jersey
49.1¢NMNew Mexico
18.9¢NYNew York
24.2¢NCNorth Carolina
41.3¢NDNorth Dakota
23.0¢OHOhio
38.5¢OKOklahoma
20.0¢OROregon
40.0¢PAPennsylvania
58.7¢RIRhode Island
41.1¢SCSouth Carolina
28.8¢SDSouth Dakota
30.0¢TNTennessee
27.4¢TXTexas
20.0¢UTUtah
39.5¢VTVermont
31.5¢VAVirginia
41.6¢WAWashington
55.4¢WVWest Virginia
35.7¢WIWisconsin
32.9¢WYWyoming
24.0¢Rates shown are combined state rates (excise + all fees), per EIA January 2026.
Gas tax rates by state — 2026
Sorted highest to lowest combined state gasoline rate. Source: U.S. Energy Information Administration, January 2026.
| State | Gas (excise) | Gas (combined) | Diesel (combined) | Total (gas + federal) | |
|---|---|---|---|---|---|
| California | 61.2¢ | 72.5¢* | 89.9¢ | 91.0¢ | Calculate → |
| Illinois | 48.3¢ | 65.3¢* | 73.8¢ | 83.8¢ | Calculate → |
| Indiana | 36.0¢ | 63.5¢* | 62.0¢ | 82.0¢ | Calculate → |
| Pennsylvania | 57.6¢ | 58.7¢* | 74.1¢ | 77.2¢ | Calculate → |
| Washington | 55.4¢ | 55.4¢ | 58.4¢ | 73.9¢ | Calculate → |
| Michigan | 52.4¢ | 52.4¢ | 52.4¢ | 70.9¢ | Calculate → |
| Connecticut | 25.0¢ | 51.4¢* | 49.9¢ | 69.9¢ | Calculate → |
| New Jersey | 10.5¢ | 49.1¢* | 56.1¢ | 67.6¢ | Calculate → |
| Maryland | 46.6¢ | 46.6¢ | 47.5¢ | 65.1¢ | Calculate → |
| Georgia | 33.3¢ | 43.3¢* | 49.3¢ | 61.8¢ | Calculate → |
| Virginia | 32.6¢ | 41.6¢* | 42.7¢ | 60.1¢ | Calculate → |
| North Carolina | 41.0¢ | 41.3¢* | 41.3¢ | 59.8¢ | Calculate → |
| Rhode Island | 40.0¢ | 41.1¢* | 41.1¢ | 59.6¢ | Calculate → |
| Florida | 38.0¢ | 41.1¢* | 41.0¢ | 59.6¢ | Calculate → |
| Oregon | 40.0¢ | 40.0¢ | 40.0¢ | 58.5¢ | Calculate → |
| Utah | 37.9¢ | 39.5¢* | 39.5¢ | 58.0¢ | Calculate → |
| Ohio | 38.5¢ | 38.5¢ | 47.0¢ | 57.0¢ | Calculate → |
| Washington D.C. | 23.5¢ | 35.7¢* | 35.7¢ | 54.2¢ | Calculate → |
| West Virginia | 20.5¢ | 35.7¢* | 35.7¢ | 54.2¢ | Calculate → |
| Montana | 33.0¢ | 33.8¢* | 30.5¢ | 52.3¢ | Calculate → |
| Wisconsin | 30.9¢ | 32.9¢* | 32.9¢ | 51.4¢ | Calculate → |
| Nebraska | 31.8¢ | 32.7¢* | 32.1¢ | 51.2¢ | Calculate → |
| Minnesota | 29.1¢ | 32.6¢* | 32.6¢ | 51.1¢ | Calculate → |
| Idaho | 32.0¢ | 32.0¢ | 32.0¢ | 50.5¢ | Calculate → |
| Vermont | 12.1¢ | 31.5¢* | 32.0¢ | 50.0¢ | Calculate → |
| Maine | 30.0¢ | 31.4¢* | 31.9¢ | 49.9¢ | Calculate → |
| Alabama | 30.0¢ | 31.0¢* | 32.0¢ | 49.5¢ | Calculate → |
| Iowa | 30.0¢ | 30.0¢ | 32.5¢ | 48.5¢ | Calculate → |
| South Dakota | 28.0¢ | 30.0¢* | 30.0¢ | 48.5¢ | Calculate → |
| Missouri | 29.5¢ | 30.0¢* | 30.0¢ | 48.5¢ | Calculate → |
| Colorado | 22.0¢ | 29.2¢* | 34.7¢ | 47.7¢ | Calculate → |
| South Carolina | 28.0¢ | 28.8¢* | 28.8¢ | 47.3¢ | Calculate → |
| Massachusetts | 24.0¢ | 27.5¢* | 27.5¢ | 46.0¢ | Calculate → |
| Tennessee | 26.0¢ | 27.4¢* | 28.4¢ | 45.9¢ | Calculate → |
| Kansas | 24.0¢ | 25.0¢* | 27.0¢ | 43.5¢ | Calculate → |
| Arkansas | 24.5¢ | 24.8¢* | 28.8¢ | 43.3¢ | Calculate → |
| New York | 8.1¢ | 24.2¢* | 22.1¢ | 42.7¢ | Calculate → |
| Wyoming | 23.0¢ | 24.0¢* | 24.0¢ | 42.5¢ | Calculate → |
| Nevada | 23.0¢ | 23.8¢* | 27.8¢ | 42.3¢ | Calculate → |
| New Hampshire | 22.2¢ | 23.8¢* | 23.8¢ | 42.3¢ | Calculate → |
| Delaware | 23.0¢ | 23.0¢ | 22.0¢ | 41.5¢ | Calculate → |
| North Dakota | 23.0¢ | 23.0¢ | 23.0¢ | 41.5¢ | Calculate → |
| Mississippi | 21.0¢ | 21.4¢* | 21.4¢ | 39.9¢ | Calculate → |
| Louisiana | 20.0¢ | 20.1¢* | 20.1¢ | 38.6¢ | Calculate → |
| Oklahoma | 19.0¢ | 20.0¢* | 20.0¢ | 38.5¢ | Calculate → |
| Texas | 20.0¢ | 20.0¢ | 20.0¢ | 38.5¢ | Calculate → |
| Arizona | 18.0¢ | 19.0¢* | 27.0¢ | 37.5¢ | Calculate → |
| New Mexico | 17.0¢ | 18.9¢* | 22.9¢ | 37.4¢ | Calculate → |
| Hawaii | 16.0¢ | 18.5¢* | 18.5¢ | 37.0¢ | Calculate → |
| Kentucky | 15.0¢ | 16.4¢* | 13.4¢ | 34.9¢ | Calculate → |
| Alaska | 8.9¢ | 9.0¢* | 9.0¢ | 27.5¢ | Calculate → |
Combined column includes excise + all state fees and surcharges. * = excise and combined rates differ (e.g. sales tax on fuel, environmental fees). Total column adds federal 18.4¢ excise + 0.1¢ LUST fee. Local/county taxes not included.
Frequently asked questions
What is the federal gas tax in 2026?
The federal gasoline excise tax is 18.4 cents per gallon and has been unchanged since October 1, 1993. The federal diesel excise tax is 24.4 cents per gallon. An additional 0.1 cent per gallon Leaking Underground Storage Tank (LUST) fee also applies to both fuels, bringing the combined federal rate to 18.5 c/gal (gasoline) and 24.5 c/gal (diesel). These taxes fund the Highway Trust Fund for interstate highway maintenance and mass transit.
What is the difference between excise rate and combined rate?
The excise rate is the pure statutory per-gallon excise tax set by the state legislature. The combined rate is the total state-level tax burden per gallon as compiled by the EIA, including the excise tax plus environmental fees, petroleum storage tank fees, inspection fees, and in some states an applicable sales tax on fuel. For most states the difference is small (under 2 c/gal), but states like California, Indiana, Illinois, Vermont, and Washington D.C. show significant gaps because they layer sales taxes or large surcharges on top of the excise.
Which state has the highest gas tax?
California has the highest combined state gas tax at 70.9 cents per gallon as of January 1, 2026, per the EIA. This includes the excise tax plus the 2.25% sales tax on gasoline. California also has the highest combined diesel tax at 87.3 c/gal. Illinois (66.4 c/gal gasoline) and Washington (59.04 c/gal) rank second and third.
Which state has the lowest gas tax?
Alaska has the lowest state gas tax at approximately 9.0 cents per gallon combined — unchanged since 1970. Alaska funds roads primarily through federal transfers and Permanent Fund earnings rather than fuel taxes.
How is gas tax calculated?
Gas tax is calculated per gallon — a flat cent-per-gallon rate multiplied by the number of gallons purchased. For example, filling a 15-gallon tank in Ohio means paying 38.5 cents × 15 = $5.78 in state tax, plus 18.4 cents × 15 = $2.76 in federal excise tax, for a combined tax of $8.54. The tax is already baked into the posted pump price — you don't pay it separately at checkout.
Why is gas tax already included in the pump price?
Gas taxes are collected at the wholesale level — paid by fuel distributors before the gasoline reaches the retail pump. Retailers then include these taxes in the posted price per gallon. Unlike sales tax which is added at checkout, fuel tax is pre-included in the price you see on the sign. This is why gas prices vary so significantly between states.
What is the difference between gas tax and sales tax on fuel?
Gas tax (fuel excise tax) is a fixed per-gallon charge regardless of the fuel price. Sales tax is a percentage of the purchase price and increases when fuel prices rise. Most states only apply the excise tax to fuel and exempt it from general sales tax. However, California, Connecticut, Indiana, Michigan (pre-2026), Illinois, and a few others apply both an excise tax and a percentage-based sales tax, making their effective tax burdens higher and variable. Michigan restructured in 2026 to eliminate its 6% fuel sales tax in favor of a single higher excise.