New Hampshire Gas Tax Calculator
The New Hampshire state gas tax is about 22.2¢/gallon. Calculate your total gas tax (state + federal) below.
What is the gas tax in New Hampshire?
The New Hampshire state gas tax is approximately 22.2 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 New Hampshire pay less gas tax than the typical US driver.
How much gas tax will I pay in New Hampshire?
Use the calculator above to enter how many gallons you're purchasing and see the exact breakdown of New Hampshire 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.
Frequently Asked Questions
What is the gas tax rate in New Hampshire?
The New Hampshire state gas tax is approximately 22.2 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 New Hampshire's gas tax above or below the national average?
New Hampshire's gas tax of about 22.2 cents per gallon is below the rough national average of around 32 cents per gallon, putting New Hampshire among the lower gas-tax states.
How much federal gas tax do I pay in New Hampshire?
The federal gas tax is a flat 18.4 cents per gallon in every state, including New Hampshire. This is added on top of New Hampshire's own state gas tax of about 22.2 cents per gallon.
How much tax will I pay on 15 gallons of gas in New Hampshire?
On 15 gallons in New Hampshire, you'd pay roughly $3.33 in state gas tax and $2.76 in federal gas tax, for a total of about $6.09. Adjust the gallons in the calculator above for your own fill-up.
Why do gas prices vary within New Hampshire?
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 New Hampshire, even though the state and federal tax rate stays the same everywhere.
Does New Hampshire'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 New Hampshire's department of transportation or revenue for the latest updates.
What is gas tax revenue used for in New Hampshire?
Gas tax revenue in New Hampshire, like most states, primarily funds road and bridge construction and maintenance, with some states also directing a portion toward public transit projects.