Oregon gas tax
State fuel excise · tax year 2026 · federal tax excluded
On a 20-gallon fill
$9.20
Over 500 gallons
$230
Per gallon
46.0¢
state only
Rate rank
6
1 is the highest
What Oregon charges at the pump
- Oregon takes $9.20 in fuel tax from a twenty-gallon fill. Keep driving and the year's total reaches $230. On the rate behind those numbers the state comes 6 nationally. It is one of the few taxes you pay weekly and never think about once.
- Diesel is not punished in Oregon. A twenty-gallon diesel fill carries $8 of state tax against $9.20 on ordinary fuel — the same or less. Most states go the other way and charge diesel more, so this is worth knowing if you drive one.
- Oregon keeps it simple. There are no separate inspection or environmental charges reported on top of the fuel tax here, so the main rate is the whole of what the state adds to a gallon.
- Fuel excise in Oregon totals $9.20 per twenty-gallon purchase and $230 over five hundred gallons, a rate ranking 6 nationally. ⚠️ Excluding federal excise throughout. Because the charge is fixed in nominal cents rather than indexed to price, its real burden has declined steadily wherever a legislature has not revisited it — several states now index explicitly for that reason.
- Oregon taxes diesel at or below its gasoline rate: $8 per twenty gallons against $9.20. ⚠️ This is the minority arrangement nationally — most states levy a premium on diesel to recover the heavier road wear associated with the vehicles that burn it — so Oregon's structure is a genuine cost difference for freight rather than a rounding artifact.
- Oregon reports no additional motor fuel levies apart from its principal excise, so the headline rate represents the state's full per-gallon charge. ⚠️ That makes its position in a national rate table more directly comparable than that of states which levy separately-reported inspection or environmental charges alongside the main rate.
Your year of fuel tax
A $75,000 salary
| State fuel taxper gallon | 46¢ |
|---|---|
| Fuel tax, year | $287 |
| You must earn | $466 |
| Hours of work | 13 hr |
State excise only. Federal fuel tax and any local levy are not included.
Tax in a tank
A $75,000 salary
| State rate | 46¢ a gallon |
|---|---|
| Tank costs | $44.80 |
| Fifty tanks a year | $322.00 |
State excise only. The federal fuel tax and any local levy are on top of this.
Gasoline, diesel, and the charges reported separately
Per-gallon rates are shown as Oregon publishes them, to a tenth of a cent. The money columns are what those rates come to on a 20-gallon fill and across 500 gallons. Federal tax is charged on top of all of it and is not included.
| Fuel | Per gallon | On a fill | Over a year |
|---|---|---|---|
| Gasoline | 46.0¢ | $9.20 | $230 |
| Diesel | 40.0¢ | $8 | $200 |
What this page cannot tell you
- ⚠️ Federal fuel tax is charged on top of all this and is not included above. It is the same everywhere in the country.
- The tank and the year here are round reference amounts, not a guess at your driving. Your own total scales directly with the gallons you actually buy in Oregon.
- And some places add local fuel taxes of their own on top of the state's. Those are not counted here.
- ⚠️ Federal motor fuel excise applies in addition to every figure on this page and is deliberately excluded, being uniform nationally. Including it would raise each state's figure by the same amount and compress the differences this page exists to show.
- Quantities are reference points rather than estimates of consumption: liability is strictly proportional to gallons purchased, so any household's figure is this one scaled by its own volume. ⚠️ Fuel purchased outside Oregon is taxed by the state where it is bought, which is why the figures describe purchases rather than mileage.
- Local option fuel taxes exist in a number of states and are excluded from these figures, which cover the state levy only. Where a county or city in Oregon imposes its own charge, the true per-gallon burden at that address exceeds what this page reports.
Questions people ask
Why is there no tax line on my fuel receipt?
It is already in the price on the sign. The levy is charged per gallon further up the chain, so there is nothing to add at the pump and nothing to itemize.
Is this a high-tax state for this?
It ranks 6 of 51, so it sits toward the top. The gap between neighboring states here can be large enough to be worth a short drive.
Is diesel taxed the same as gasoline?
Different rate entirely — lower than gasoline here. The split is deliberate and rests on which vehicles do most damage to the road surface.
Why does motor fuel excise not appear as a separate charge?
Motor fuel excise is levied per gallon at the distributor or terminal, not at retail, so it is embedded in the pump price and not separately stated. Because it is volumetric rather than ad valorem, liability per gallon is invariant to the retail price and its real value erodes with inflation absent legislative change.
Where does this state sit in the national distribution?
This state ranks 6 of 51, placing it in the upper third. Wide interstate dispersion in per-unit excise creates measurable cross-border purchasing effects, which several revenue departments model explicitly when forecasting receipts.
How does the diesel rate relate to the gasoline rate here?
Diesel is taxed at a rate set independently of gasoline and is lower in this state. The differential is generally justified by road-wear attribution to heavy vehicles rather than by fuel characteristics, and several states index the two grades differently.