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Haul Math

British Columbia IFTA Fuel Tax Rate, 4th Quarter 2025

British Columbia's IFTA diesel rate for the 4th quarter of 2025 is $0.4115 per gallon (C$0.1500 per litre), down $0.0074 from Q3 2025.

British Columbia rate for Q4 2025

Special diesel, Q4 2025

$0.4115

per US gallon, down $0.0074 from Q3 2025

Diesel tax rate
$0.4115/gal
Surcharge
None listed
Native rate
C$0.1500/litre
IFTA exchange rate
1 USD = 1.3797 CAD
Quarter
Q4 2025, from Oct 1, 2025
Change vs last quarter
down $0.0074

British Columbia taxes fuel by the litre in Canadian dollars. The IFTA matrix shows C$0.1500 per litre as $0.4115 per US gallon, using that quarter's exchange rate of 1.3797 CAD to the US dollar.

Notes from the source

Matrix footnote #13 (BRITISH COLUMBIA): Ethanol and ethanol blends of gasoline must be reported as Gasoline and biodiesel and biodiesel blends must be reported as Diesel. LNG tax rate is expressed in cents per kilograms (as per IFTA Ballot #5- 2015). CNG tax rate is expressed in cents cubic meter (as per IFTA Ballot #3-2013). M-85 tax rate is based on a methanol : gasoline blend :: 85% : 15%

Worked example: the British Columbia 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 British Columbia, and 100 gallons bought there.

Example numbers are filled in. Tap "Calculate British Columbia IFTA" to see the British Columbia line of an IFTA return at the Q4 2025 rate.

British Columbia vs. its neighbors, Q4 2025

IFTA diesel rates for British Columbia and bordering jurisdictions, Q4 2025
JurisdictionDiesel + surchargevs. BC
Washington$0.5840+$0.1725
British Columbia$0.4115—
Alberta$0.3567−$0.0548
Idaho$0.3200−$0.0915
Montana$0.2975−$0.1140

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.

British Columbia rate, last 4 quarters

British Columbia IFTA diesel rate by quarter
QuarterDieselSurchargeChange
Q1 2025$0.9507——
Q2 2025$0.3971—−$0.5536
Q3 2025$0.4189—+$0.0218
Q4 2025$0.4115—−$0.0074

Source: IFTA, Inc. Fuel Tax Rate Matrix, 4th Quarter 2025 · Effective Oct 1, 2025 · Last verified Sep 28, 2026

IFTA, Inc. publishes the rates each member jurisdiction reports. British Columbia'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.