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Haul Math

New Hampshire IFTA Fuel Tax Rate, 3rd Quarter 2025

New Hampshire's IFTA diesel rate for the 3rd quarter of 2025 is $0.2220 per gallon, unchanged from Q2 2025.

New Hampshire rate for Q3 2025

Special diesel, Q3 2025

$0.2220

per US gallon, unchanged from Q2 2025

Diesel tax rate
$0.2220/gal
Surcharge
None listed
Quarter
Q3 2025, from Jul 1, 2025
Change vs last quarter
unchanged

Worked example: the New Hampshire line of your IFTA return

Change the numbers to match your quarter. Prefilled with 10,000 total miles on 1,550 gallons, 1,200 of those miles in New Hampshire, and 100 gallons bought there.

Example numbers are filled in. Tap "Calculate New Hampshire IFTA" to see the New Hampshire line of an IFTA return at the Q3 2025 rate.

New Hampshire vs. its neighbors, Q3 2025

IFTA diesel rates for New Hampshire and bordering jurisdictions, Q3 2025
JurisdictionDiesel + surchargevs. NH
Quebec$0.5640+$0.3420
Maine$0.3120+$0.0900
Vermont$0.3100+$0.0880
Massachusetts$0.2400+$0.0180
New Hampshire$0.2220—

On an IFTA return, a higher rate doesn't mean you pay more overall. Fuel you buy in a high-rate state earns a bigger credit. What matters is where you burn the fuel versus where you buy it.

New Hampshire rate, last 4 quarters

New Hampshire IFTA diesel rate by quarter
QuarterDieselSurchargeChange
Q4 2024$0.2220——
Q1 2025$0.2220—no change
Q2 2025$0.2220—no change
Q3 2025$0.2220—no change

Source: IFTA, Inc. Fuel Tax Rate Matrix, 3rd Quarter 2025 · Effective Jul 1, 2025 · Last verified Sep 28, 2026

IFTA, Inc. publishes the rates each member jurisdiction reports. New Hampshire's tax agency is the final word on its rate.

Estimates for planning. Confirm with your tax pro or your base jurisdiction's IFTA office before filing.