Typical commuter
12,000 mi · 25 MPG · 480 gal
$96.00
+ $88.80 federal
All states
Jan. 1 2026Rank #45
Jan. 1 2026Rank #45Oklahoma Gas Tax 2026
19¢/gal excise + 1¢/gal fees = 20¢/gal state (38.5¢/gal with federal).
By Sammy S. · Founder · AuthorUpdated for 2026
20¢/gal
State total
38.5¢/gal
Combined
$96.00
Annual state tax
#45
National rank
Oklahoma gasoline tax breakdown
Excise tax
19¢/gal
Other fees
1¢/gal
State total
20¢/gal
Combined w/ federal
38.5¢/gal
Oklahoma's 20¢/gal state total ranks #45 nationally and is below the 33.25¢/gal US average. Federal tax adds 18.5¢/gal everywhere.
Estimated annual gasoline tax in Oklahoma
State tax only (federal shown separately). Gallons = miles ÷ MPG.
Higher mileage
15,000 mi · 25 MPG · 600 gal
$120.00
+ $111.00 federal
30 MPG vehicle
12,000 mi · 30 MPG · 400 gal
$80.00
+ $74.00 federal
20 MPG vehicle
12,000 mi · 20 MPG · 600 gal
$120.00
+ $111.00 federal
Default headline: $96.00 state tax at 12,000 miles and 25 MPG (480 gallons).
Key takeaways — Oklahoma gas tax
- Oklahoma total state gasoline tax is 20¢/gal (19¢/gal excise + 1¢/gal other fees) in 2026.
- Combined with federal 18.5¢/gal, the tax component is about 38.5¢/gal per gallon.
- National rank #45 (#1 = highest). That is 13.25¢/gal below the 33.25¢/gal US average state tax.
- At 12,000 miles and 25 MPG, state tax is about $96.00 and combined federal+state about $184.80.
- Bordering jurisdictions range from 18.88¢/gal to 29.99¢/gal in state tax.
- Local fuel taxes and (in CA/OR/WA) LCFS or cap-and-trade costs may raise what you actually pay at the pump.
Oklahoma vs neighboring states
Total state gasoline tax for jurisdictions that share a border with Oklahoma. Oklahoma is 20¢/gal (rank #45).
| State | State total | vs OK | Compare |
|---|---|---|---|
| Oklahoma | 20¢/gal | — | This page |
 Missouri | 29.99¢/gal | +9.99¢/gal | vs OK |
 Colorado | 29.18¢/gal | +9.18¢/gal | vs OK |
 Kansas | 25.03¢/gal | +5.03¢/gal | vs OK |
 Arkansas | 25¢/gal | +5¢/gal | vs OK |
 Texas | 20¢/gal | 0¢/gal | vs OK |
 New Mexico | 18.88¢/gal | -1.12¢/gal | vs OK |
*Annual state tax at 12,000 miles and 25 MPG. Federal tax excluded from the delta column.
Oklahoma tax on a typical fill-up
Tax dollars already included in the pump price at 20¢/gal state + federal.
10-gallon fill-up
$2.00
state · $3.85 w/ federal
15-gallon fill-up
$3.00
state · $5.78 w/ federal
20-gallon fill-up
$4.00
state · $7.70 w/ federal
How to read this page
Oklahoma gas tax overview (2026)
Oklahoma charges a total statewide gasoline tax of 20¢/gal as of January 1, 2026, per Tax Foundation Table 22. That breaks down to 19¢/gal in excise and 1¢/gal in other per-gallon fees.
Add the federal 18.5¢/gal for a combined tax component of 38.5¢/gal. Wholesale crude, refining, and station margins still make up most of the retail price.
Rank #45 places Oklahoma 13.25¢/gal below the 33.25¢/gal average across all 51 jurisdictions in this dataset.
What drivers in Oklahoma pay over a year
Using 12,000 miles at 25 MPG (480 gallons), state gasoline tax alone is about $96.00. Federal tax on the same gallons is about $88.80.
A 15-gallon fill-up carries roughly $3.00 in state tax ($5.78 including federal)—before any local add-ons.
If you often cross into Missouri, Colorado, Kansas, compare those rates before assuming Oklahoma is always the cheapest fill.
Planning fuel costs in Oklahoma
Track miles and MPG for a realistic gallons estimate; tax scales directly with gallons purchased.
Diesel, aviation gasoline, and dyed fuel follow different federal and often different state schedules.
For tax-deductible business miles, use the IRS standard mileage rate or actual expenses—gas tax is already embedded in fuel cost and is not a separate personal income-tax line.
Who this Oklahoma gas tax page helps
Useful if…
- •Residents of Oklahoma estimating how much of each fill-up is tax.
- •Commuters weighing Oklahoma against a neighboring state’s pump taxes.
- •Small fleets budgeting annual fuel tax at known mileage.
- •Movers comparing offer packages that include a car commute.
Use official tools if…
- •You need an official refund, bonded fuel, or IFTA filing.
- •Your city adds a local fuel tax not in the statewide table.
- •You primarily buy diesel or alternative fuels.
- •You need a live retail price forecast rather than statutory rates.
Oklahoma gas tax checklist
Quick steps before treating the statewide average as your exact pump tax.
- 1Confirm Oklahoma's 20¢/gal state total and rank #45.
- 2Add federal 18.5¢/gal for a 38.5¢/gal combined tax component.
- 3Estimate annual cost with your miles ÷ MPG × rate.
- 4Ask whether local fuel taxes apply at your usual stations.
- 5Compare Oklahoma with a peer or neighbor before relocating for fuel savings alone.
- 6Recheck rates after mid-year reindexes if your state adjusts for inflation.
States with similar gasoline tax rates
| State | State total | Rank | Annual tax |
|---|---|---|---|
| Texas | 20¢/gal | #45 | $96.00 |
 Louisiana | 20.93¢/gal | #44 | $100.46 |
 Arizona | 19¢/gal | #47 | $91.20 |
| New Mexico | 18.88¢/gal | #48 | $90.62 |
 Mississippi | 21.4¢/gal | #43 | $102.72 |
 Hawaii | 18.5¢/gal | #49 | $88.80 |
Compare Oklahoma with another state
Compare any two states
State gasoline tax rates with annual driving-cost estimates.
Oklahoma gasoline tax FAQs
Oklahoma's total state gasoline tax is 20¢/gal in 2026: 19¢/gal excise plus 1¢/gal in other per-gallon fees.
38.5¢/gal per gallon (20¢/gal state + 18.5¢/gal federal).
At 12,000 miles and 25 MPG (480 gallons), state tax is about $96.00 and federal tax about $88.80, for $184.80 combined.
Oklahoma ranks #45 by total state gasoline tax among the 50 states, where #1 is the highest rate. Equal totals may share a rank or receive consecutive ranks in the Tax Foundation table.
This table excludes county and municipal fuel taxes. Some cities or counties add separate per-gallon levies not reflected in the statewide total.
Federal diesel tax is 24.5¢/gal. Oklahoma may use a different diesel excise or fee schedule than the gasoline total shown here.
Oklahoma's 20¢/gal is below the 33.25¢/gal average across all jurisdictions in this dataset.
Rates are statewide totals as of January 1, 2026 from Tax Foundation Table 22. Local fuel taxes, diesel-specific schedules, and implied environmental program costs (notably in CA, OR, and WA) may not be fully captured.
About $3.00 in state tax and $5.78 including federal 18.5¢/gal—already in the pump price.
Nearby state totals: Missouri 29.99¢/gal (+9.99¢/gal vs OK); Colorado 29.18¢/gal (+9.18¢/gal vs OK); Kansas 25.03¢/gal (+5.03¢/gal vs OK); Arkansas 25¢/gal (+5¢/gal vs OK); Texas 20¢/gal (0¢/gal vs OK); New Mexico 18.88¢/gal (-1.12¢/gal vs OK). Open a compare page for annual dollar gaps.
Many states periodically adjust excise rates; this page reflects Tax Foundation’s January 1, 2026 snapshot. Confirm the current statute or revenue department notice for the latest cents-per-gallon figure.
Personal commuting fuel is generally not deductible. Business or self-employed drivers usually claim the standard mileage rate or actual fuel expenses (which already include gas tax), not a separate state gas-tax credit.