IFTA tax by state: 4Q 2026 diesel rates for every jurisdiction

This is one table for every IFTA jurisdiction: the 48 contiguous states and 10 Canadian provinces, plus Alaska, Hawaii and DC marked as non-members. Each row has the diesel rate for the current quarter, any surcharge, the tax per mile at your fuel economy, and the agency that runs IFTA there, linked as IFTA, Inc. lists it. Searching for "Texas IFTA" or "Ohio IFTA" lands you on the right row.

IFTA diesel tax rates by state, 2026

Type a state or its two-letter code, filter by country or rate, or sort by the highest rate. Tap a tile to jump to that row. Change the mpg and the tax per mile updates on every row.

Source: IFTA, Inc., IFTA tax rate matrix, 4th quarter 2026 · checked Oct 2026

Source: Oregon DOT, Truck taxation in Oregon · checked Oct 2026

Source: IFTA, Inc., Member jurisdiction links · checked Oct 2026

Two things to know about these numbers. First, IFTA, Inc. marks this matrix as not final until December 4, 2026; it was last updated October 5, 2026. We check it again when it is final and update any rate that changed. Second, Canadian rates are shown as IFTA, Inc. prints them in U.S. dollars per U.S. gallon so they compare directly with U.S. rows; the matrix also lists them in Canadian dollars per liter, for example Ontario at C$0.09 and Quebec at C$0.202.

How to read a state's rate on your return

Your IFTA return has one line per jurisdiction. On each line, the miles you drove there are turned into the gallons you burned there (miles ÷ your fleet mpg), multiplied by that jurisdiction's rate. From that, the tax you already paid at the pump in that jurisdiction is subtracted. A positive result is owed, a negative one is a credit. The IFTA fuel tax calculator runs every line with these rates.

Where a jurisdiction lists a surcharge, as Kentucky and Virginia do, it is added on the return too. The table adds it into the total so the per-mile figure is what you actually pay.

Oregon is the exception. It is an IFTA member, but no diesel rate in the matrix. Oregon taxes trucks over 26,000 lb by weight and distance (weight-mile tax) instead of a diesel fuel tax; report Oregon miles as your base jurisdiction instructs.

What the spread means for cost per mile

The same 1,000 miles carry about $121 more fuel tax in California than in Oklahoma at 6.5 mpg. On a lane that crosses several high-rate states, fuel tax can add 10 cents or more to every mile; on a lane through the low-rate South Central states, it can be under 4 cents. That gap belongs in the rate you accept, the same way fuel and tolls do.

Two habits follow from it:

• Price the lane, not just the load. A load into Illinois or Pennsylvania carries more fuel tax per mile than one into Texas. Your cost per mile should use the states you actually drive.
• Buying fuel in a low-tax state doesn't avoid the tax. It lowers what you pay at the pump, then the return collects the difference for the miles you drove in the high-tax states. Fuel buying still matters for the pump price and your cash flow, but it doesn't change what IFTA collects in the end.

State notes for the most searched IFTA states

• Texas IFTA: $0.20 a gallon. The Comptroller runs IFTA. The matrix notes that biodiesel, renewable diesel and blends bought in Texas are reported as diesel.
• California IFTA: $0.979 a gallon, the highest in the matrix, run by the Department of Tax and Fee Administration.
• Ohio IFTA: $0.47 a gallon, run by the Department of Taxation.
• Michigan IFTA: $0.524 a gallon, run by the Department of Treasury.
• Illinois IFTA: $0.738 a gallon, run by the Department of Revenue.
• Florida IFTA: $0.4097 a gallon, run by the Department of Highway Safety and Motor Vehicles.
• Washington IFTA: $0.595 a gallon, run by the Department of Licensing; the matrix notes biodiesel is reported in the diesel column.
• Virginia IFTA: $0.336 a gallon plus a $0.143 surcharge, $0.479 in total, run by the DMV.

The agency link for each is in the table. Your return is filed with your base jurisdiction only, whichever state your account is in, and it covers every state above. You don't file with each state separately.

How rates change from quarter to quarter

Rates move. Some states tie fuel tax to inflation or to fuel prices and adjust it during the year. That is why each quarter's return uses that quarter's matrix. The pattern over recent years, state by state, is in IFTA fuel tax rates history, and the dates each return is due are on IFTA filing dates. If you'd rather hand the return to someone, compare IFTA filing services or the tools in IFTA reporting software and apps.

Cite or embed this table

Free to use with a link back. We update it each quarter when IFTA, Inc. publishes the new matrix.

Where dispatch fits

Fuel tax is a per-mile cost that changes with every state line. Our truck dispatch service books loads with it in the math, and weekly reports keep each load's miles by state for the return. Every load is offered to you first; you decide.

General information, not tax advice. Rules and rates change every year and depend on your situation: confirm with a tax professional before you file. We are not a tax preparer or accountant.