How Much Is Michigan’s Gas Tax Per Gallon? Rates, Changes, and What Drivers Pay
Meta description: Michigan’s state gasoline tax is 52.4 cents per gallon starting January 1, 2026. Learn how it compares with the old rate, what federal taxes add, and how the change affects drivers.
Michigan’s gasoline tax is 52.4 cents per gallon as of January 1, 2026, under a state road-funding law that replaced the former fuel-tax and sales-tax arrangement. That is a 21.4-cent increase over the previous 31-cent-per-gallon state gasoline tax. The federal government also charges 18.4 cents per gallon, bringing the combined state and federal fuel excise taxes to 70.8 cents per gallon before other costs are considered. The final price at a gas station still depends on fuel prices, distribution costs, and local competition.
Michigan’s Gas Tax Per Gallon in 2026
Michigan’s state gasoline tax is 52.4 cents for each gallon of gasoline beginning January 1, 2026. The rate applies to gasoline sold for use in motor vehicles. It is a per-gallon excise tax, meaning the charge is based on the amount of fuel purchased rather than the pump price.
Before the change, Michigan’s state gasoline tax was 31 cents per gallon. The new rate is therefore 21.4 cents higher, an increase of about 69 percent in the state excise tax itself. That percentage does not mean a driver’s total fuel bill rises by 69 percent: the tax is only one part of the retail price, and other parts of the tax system changed at the same time.
| Fuel-tax detail | Rate or change |
|---|---|
| Michigan gasoline excise tax, starting January 1, 2026 | 52.4 cents per gallon |
| Previous Michigan gasoline excise tax | 31 cents per gallon |
| Increase in the state gasoline excise tax | 21.4 cents per gallon |
| Federal gasoline excise tax | 18.4 cents per gallon |
| Combined state and federal excise taxes | 70.8 cents per gallon |
The figures above concern gasoline. Diesel fuel can have a different state rate and tax treatment, so the gasoline figure should not be used to calculate diesel taxes.
Why Michigan’s Gas Tax Changed
The increase is part of a Michigan road-funding law that changed how the state collects taxes connected to motor fuel. The law raised the per-gallon fuel tax while removing the state sales tax on fuel purchases. The intent was to direct a greater share of transportation-related revenue toward roads and infrastructure, rather than relying on the prior combination of a lower fuel excise tax and sales tax revenue.
This distinction matters when comparing tax rates from different years. Looking only at the old 31-cent rate and the new 52.4-cent rate misses the sales-tax change. The 2026 policy did not simply add 21.4 cents to an otherwise unchanged tax system: it changed both the per-gallon fuel tax and the treatment of sales tax on fuel.
Because sales tax is calculated as a percentage of a purchase price, its former dollar amount varied with the price of gasoline. A per-gallon excise tax is fixed at the stated rate for each gallon, subject to any changes made by law. This means the state’s tax per gallon is easier to identify at the pump, although the total price can still vary widely.
How Much Federal Gas Tax Is Added?
The federal gasoline excise tax is 18.4 cents per gallon. It is charged in addition to Michigan’s state tax. Combining the federal tax with Michigan’s 52.4-cent rate gives a total of 70.8 cents per gallon in state and federal excise taxes.
For example, a 15-gallon fill-up includes $7.86 in Michigan gasoline excise tax: 15 multiplied by $0.524. The federal excise tax adds $2.76: 15 multiplied by $0.184. Together, those two per-gallon taxes amount to $10.62 on 15 gallons. This calculation covers the state and federal excise taxes only, not the entire cost of the fuel.
Federal gasoline-tax rates are set separately from Michigan’s rates. A change in Michigan’s tax does not automatically change the federal amount, and the federal rate does not vary by state.
What the Tax Change Means at the Pump
A higher per-gallon tax can affect the amount a driver pays, but it does not determine the full pump price. Retail gasoline prices also reflect the cost of crude oil, refining, transportation, storage, wholesale supply, and station operations. Supply disruptions, seasonal fuel blends, demand, and competition can make prices differ among locations and over time.
Under a simple comparison that holds all other costs constant, a 21.4-cent-per-gallon increase would add $2.14 to a 10-gallon purchase, $3.21 to a 15-gallon fill-up, and $4.28 to a 20-gallon purchase. These examples show the direct difference between the old and new state excise-tax rates. They do not estimate the complete change in a driver’s bill because the state also changed the sales-tax treatment of fuel.
The actual effect on a household depends on how much fuel it buys and the prices it pays. A driver covering more miles or using a less fuel-efficient vehicle generally buys more gallons and therefore pays more per-gallon fuel tax over the year. Someone who drives less buys fewer gallons and pays less in total.
How Michigan Compares With Other States
State fuel taxes vary substantially across the United States. Some states rely on a relatively low per-gallon tax, while others charge higher rates or add taxes and fees through different mechanisms. Comparisons can be confusing when one source reports only a fixed excise tax and another includes sales taxes, environmental fees, or other state charges.
Michigan’s 52.4-cent gasoline excise rate is its state per-gallon rate under the 2026 policy. A fair interstate comparison should use the same date and the same definition of “gas tax” for every state. It should also account for whether a state applies sales tax to fuel or has other charges that affect the amount collected.
For the most useful comparison, drivers can check a current state-by-state fuel-tax table from a government agency or a transportation-policy organization. Rates may change through legislation, automatic adjustments, or other state rules, so older rankings can quickly become outdated.
Where Michigan Gas-Tax Revenue Goes
Fuel-tax revenue supports transportation purposes under state and federal law. In Michigan, transportation funding helps pay for road and bridge construction, repairs, maintenance, and other transportation needs. The state distributes funding through established programs and agencies; the tax is not a direct payment to a particular road used by the person buying the gasoline.
Fuel taxes are often described as a user-fee approach to transportation funding because the amount paid generally rises with the number of gallons purchased. However, fuel taxes do not perfectly match individual road use. Vehicle weight, driving location, vehicle efficiency, and the types of roads traveled all affect wear and infrastructure needs in ways that a simple per-gallon charge does not capture.
Michigan’s Department of Transportation provides information about state transportation programs and funding. The Michigan Department of Treasury and state law provide details about tax collection and applicable rates. These official sources are useful for checking how revenue is administered and whether a rate has changed.
How to Calculate Michigan Gas Tax on a Purchase
To calculate the state gasoline excise tax on a purchase made at the 2026 rate, multiply the number of gallons by $0.524. To include the federal gasoline excise tax, multiply the gallons by $0.184 and add the two amounts.
- State tax: gallons purchased × $0.524.
- Federal tax: gallons purchased × $0.184.
- Combined excise tax: gallons purchased × $0.708.
For a 12-gallon purchase, the state excise tax is $6.288, or about $6.29. The federal excise tax is $2.208, or about $2.21. The combined amount is $8.496, or about $8.50. Rounding may cause a small difference when compared with a retailer’s or tax authority’s accounting figures.
This method estimates the excise taxes associated with the gallons purchased. It does not reveal how much of the posted pump price reflects the taxes, because the station’s price also includes fuel costs and other business expenses. Nor does it apply to diesel, which may be taxed at a different rate.
Common Questions About Michigan’s Gas Tax
Is Michigan’s gas tax 31 cents or 52.4 cents per gallon?
Both figures apply to different periods. Michigan’s state gasoline excise tax was 31 cents per gallon before the new rate took effect. Starting January 1, 2026, the rate is 52.4 cents per gallon. Articles or tax tables that list 31 cents may describe the earlier system or may not have been updated.
Does the 52.4-cent rate include the federal tax?
No. The 52.4-cent figure is Michigan’s state gasoline excise tax. The federal gasoline tax is an additional 18.4 cents per gallon. Together, the two excise taxes total 70.8 cents per gallon.
Does the new rate mean gasoline prices must rise by exactly 21.4 cents?
Not necessarily. The state excise-tax rate increased by 21.4 cents per gallon, but the broader tax treatment of gasoline also changed when the sales tax on fuel was removed. Retail prices also respond to fuel-market conditions and business costs. As a result, the exact change at a particular station can differ from the change in the state excise-tax rate.
Is the gas tax the same in every part of Michigan?
The state gasoline excise-tax rate applies statewide. However, pump prices can vary by city, region, and station because of differences in supply, transportation, competition, and operating costs. Those price differences do not mean that Michigan has a different state gasoline excise-tax rate in each location.
How can drivers verify the current rate?
Drivers can check Michigan Department of Treasury information and the state law establishing the fuel-tax change. Federal rates can be verified through the Internal Revenue Service. For comparisons with other states, the publication date and the definition of the reported tax should be checked carefully.
Key Takeaway
Michigan’s gasoline excise tax is 52.4 cents per gallon starting January 1, 2026. The rate replaced the former 31-cent state rate as part of a broader change that also removed the sales tax on fuel. Adding the 18.4-cent federal gasoline excise tax brings the combined state and federal excise-tax total to 70.8 cents per gallon. These figures apply to gasoline, and the tax change is only one factor in the price drivers see at the pump.
Sources: Michigan Department of Treasury; Michigan Department of Transportation; Internal Revenue Service; Michigan Legislature.