Mississippi Gas Tax Calculator

The Mississippi state gas tax is about 18.0¢/gallon. Calculate your total gas tax (state + federal) below.

Mississippi Total Gas Tax Paid
$5.46
State Gas Tax Rate18.0¢/gal
State Tax Amount$0
Federal Tax Amount (18.4¢/gal)$0
Total Tax on This Purchase$0

What is the gas tax in Mississippi?

The Mississippi state gas tax is approximately 18.0 cents per gallon, which is below the rough national average of around 32 cents per gallon. The federal gas tax still adds a flat 18.4 cents per gallon on top, but overall drivers in Mississippi pay less gas tax than the typical US driver.

How much gas tax will I pay in Mississippi?

Use the calculator above to enter how many gallons you're purchasing and see the exact breakdown of Mississippi state tax, federal tax, and total tax on that fill-up.

This is an approximate combined state gas tax rate for estimation purposes — actual rates change periodically and may include additional local taxes not reflected here.

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Frequently Asked Questions

What is the gas tax rate in Mississippi?

The Mississippi state gas tax is approximately 18.0 cents per gallon. Combined with the federal gas tax of 18.4 cents per gallon, use the calculator above to see the total tax on your fill-up.

Is Mississippi's gas tax above or below the national average?

Mississippi's gas tax of about 18.0 cents per gallon is below the rough national average of around 32 cents per gallon, putting Mississippi among the lower gas-tax states.

How much federal gas tax do I pay in Mississippi?

The federal gas tax is a flat 18.4 cents per gallon in every state, including Mississippi. This is added on top of Mississippi's own state gas tax of about 18.0 cents per gallon.

How much tax will I pay on 15 gallons of gas in Mississippi?

On 15 gallons in Mississippi, you'd pay roughly $2.70 in state gas tax and $2.76 in federal gas tax, for a total of about $5.46. Adjust the gallons in the calculator above for your own fill-up.

Why do gas prices vary within Mississippi?

Beyond the state gas tax, local factors like distribution costs, competition among stations, and proximity to refineries or terminals can cause gas prices to vary from city to city within Mississippi, even though the state and federal tax rate stays the same everywhere.

Does Mississippi's gas tax change often?

It depends on state law — some states adjust their gas tax rate periodically based on inflation or fuel price formulas, while others require new legislation to change the rate. Check Mississippi's department of transportation or revenue for the latest updates.

What is gas tax revenue used for in Mississippi?

Gas tax revenue in Mississippi, like most states, primarily funds road and bridge construction and maintenance, with some states also directing a portion toward public transit projects.