Fuel Trip Permits vs. IFTA

IFTA exists so that a carrier files one fuel tax return with one jurisdiction instead of dealing with every state it burns fuel in. But a carrier that does not hold an IFTA license — because it is based in a non-member jurisdiction, because it chose not to participate, or because the operation is genuinely one-off — still owes fuel tax to the states it drives through. The fuel trip permit is how that obligation gets satisfied one trip at a time.

The Articles of Agreement provide for it directly: in lieu of motor fuel tax licensing under the Agreement, persons may elect to satisfy motor fuels use tax obligations on a trip-by-trip basis.

Two credentials, often confused, sometimes both required

A registration trip permit substitutes for plates. A fuel trip permit substitutes for a fuel tax license. The cleanest proof that these are genuinely separate products is that several states sell both, at different prices, for different durations.

Nevada requires vehicles at 26,001 pounds or more, or with three or more axles, to obtain both a Registration Permit and a Fuel Tax Permit before entering the state. Washington lists a trip permit at 3 consecutive days and a separate fuel permit, also 3 consecutive days, required when entering the state if you do not pay fuel tax under IFTA. Arizona sells registration permits by duration and use-fuel permits separately.

Who needs one

California’s tax agency sets out the categories as clearly as any: carriers based outside California in a non-IFTA jurisdiction operating a diesel qualified motor vehicle in the state; carriers who qualify for IFTA but choose not to participate; and unlicensed California carriers re-entering after travelling out of state.

That middle category carries a consequence worth stating plainly — a carrier who opts out of IFTA does not buy one permit and move on. California’s guidance is that such a carrier must obtain a fuel trip permit to travel into or through each IFTA member jurisdiction, and must obtain a new one every time it re-enters California after travelling outside the state. Opting out of IFTA trades one quarterly return for a permit at every border.

Verified examples of the product itself: the California Fuel Trip Permit is issued for up to four consecutive days at $30, and must be purchased for each qualified motor vehicle and completed prior to entering California. Washington’s fuel permit runs 3 consecutive days at $33. Arizona’s use fuel permits run 30, 90, or 180 days at $130, $390, and $780, with single-trip versions at $16 for up to 50 miles and $65 beyond.

Oregon is the standing exception to "every state sells a fuel trip permit." Oregon administers a weight-mile tax instead, and a carrier without an account buys a Temporary Pass — $9 plus weight-mile tax for each mile operated in the state.

The reporting nuance almost everyone gets wrong

The common claim is that miles run under a fuel trip permit "do not get reported to IFTA." That is half right, and the missing half causes return errors.

The Articles of Agreement define in-jurisdiction distance as the total miles operated by a licensee’s qualified motor vehicles within a jurisdiction, including miles operated under an IFTA temporary permit — and state that in-jurisdiction distance does not include miles operated on a fuel tax trip permit. So the miles are indeed excluded from the taxable column.

But the commentary to that same section states that miles travelled while utilizing a trip permit would be included in total miles travelled, and would also be reported as part of the total miles travelled in the applicable jurisdiction, while not being included as taxable miles for that jurisdiction. It adds that fuel purchased while travelling under a trip permit would be included in total fuel consumed and should also be included in the tax-paid purchase column where tax was paid at the pump. The Procedures Manual confirms it from the other direction, requiring total distance travelled in all jurisdictions during the period, including operations with trip permit.

So: excluded from taxable distance, included in total distance and total fuel. Leaving them out of total distance understates your fleet mileage and distorts the average fuel consumption factor that drives the whole return.

The trap: two things called a temporary permit

The Articles of Agreement draw a distinction in a single sentence that is easy to read past. An IFTA temporary decal permit — issued by your base jurisdiction to be carried in place of the annual decals, valid 30 days while the permanent decals are affixed — produces miles that ARE included in in-jurisdiction taxable distance. A fuel tax trip permit produces miles that are EXCLUDED.

Opposite treatments, similar names. When someone in the office says "we ran that on a temporary permit," the follow-up question is which kind.

Frequently asked questions

What is the difference between a trip permit and a fuel trip permit?⌄

A trip permit is a registration credential that substitutes for plates or apportioned registration. A fuel trip permit is a tax credential that substitutes for an IFTA license. They are separate products — Nevada requires both for vehicles at 26,001 pounds or more or with three or more axles, and Washington and Arizona sell them separately at different prices.

Do I report fuel trip permit miles on my IFTA return?⌄

Yes, in total distance — but not as taxable distance. The Articles of Agreement exclude fuel tax trip permit miles from in-jurisdiction (taxable) distance, while the commentary and the Procedures Manual both require those miles in total distance. Fuel purchased on the trip belongs in total fuel consumed and, where tax was paid at the pump, in the tax-paid column.

Can I just skip IFTA and buy permits instead?⌄

You can, but price it honestly. California’s guidance is that a carrier who qualifies for IFTA and opts out must obtain a fuel trip permit for each IFTA member jurisdiction it travels into or through, and a fresh one each time it re-enters. For anything beyond genuinely occasional interstate running, the permits add up faster than a quarterly return.

How much is a California Fuel Trip Permit?⌄

The California Department of Tax and Fee Administration publishes a $30 fee per permit, valid for up to four consecutive days, purchased per qualified motor vehicle and completed before entering the state. Fees change — confirm on CDTFA’s site before relying on the figure.

What happens if I enter without a fuel permit?⌄

It varies by state and can be expensive. California publishes penalties ranging from $100 to $500, rising to $500 or 25 percent of the tax due — whichever is more — where fuel tax is owed, with the vehicle subject to being held until amounts due are paid. IFTA’s own rules provide that failing to carry the license or display decals may subject the operator to the purchase of a trip permit, a citation, or both.

Related guides

Official sources

Agency rules, fees and contacts can change — confirm current requirements with the agency before acting. This guide is general information for truckers, not tax or legal advice.

Fuel Trip Permits: The Alternative to an IFTA License