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Hawaii vs Texas Gas Tax

Hawaii has the lower state tax by 1.5¢/gal. Compare excise, fees, combined federal + state rates, and annual tax at 12,000 miles and 25 MPG.

By Sammy S. · Founder · AuthorUpdated for 2026

Lower state gasoline tax

Hawaii is lower

1.5¢/gal lower per gallon—about $7.20 less state tax per year at 12,000 mi / 25 MPG.

Side-by-side gasoline tax scoreboard

Hawaii

18.5¢/gal

State total · rank #49

Excise
16¢/gal
Other fees
2.5¢/gal
+ Federal
37¢/gal
Annual state tax
$88.80
Hawaii profile →

Texas

20¢/gal

State total · rank #45

Excise
20¢/gal
Other fees
0¢/gal
+ Federal
38.5¢/gal
Annual state tax
$96.00
Texas profile →

Annual state gasoline tax comparison

State tax only at different mileage assumptions (25 MPG unless noted). Federal tax is identical in both states (18.5¢/gal).

12,000 mi · 25 MPG

Hawaii$88.80
Texas$96.00

Gap: $7.20

15,000 mi · 25 MPG

Hawaii$111.00
Texas$120.00

Gap: $9.00

12,000 mi · 30 MPG

Hawaii$74.00
Texas$80.00

Gap: $6.00

12,000 mi · 20 MPG

Hawaii$111.00
Texas$120.00

Gap: $9.00

Key takeaways — Hawaii vs Texas gas tax

  • Hawaii has the lower state gas tax by 1.5¢/gal (18.5¢/gal vs 20¢/gal).
  • Hawaii ranks #49 nationally; Texas ranks #45 (#1 = highest state tax).
  • Combined with federal 18.5¢/gal: Hawaii 37¢/gal, Texas 38.5¢/gal.
  • At 12,000 mi / 25 MPG, state tax is about $88.80 in Hawaii vs $96.00 in Texas—a gap of $7.20.
  • Hawaii splits as 16¢/gal excise + 2.5¢/gal fees; Texas is 20¢/gal + 0¢/gal.
  • Local fuel taxes and CA/OR/WA LCFS or cap-and-trade costs may not appear in these statewide totals.

Tax on a fill-up — Hawaii vs Texas

State gasoline tax only (already in the pump price). Federal tax is the same in both states.

10-gallon fill-up

Hawaii$1.85
Texas$2.00

Gap: $0.15

15-gallon fill-up

Hawaii$2.78
Texas$3.00

Gap: $0.22

20-gallon fill-up

Hawaii$3.70
Texas$4.00

Gap: $0.30

Annual state gas tax ladder

Same miles and MPG on both sides. Gap is absolute state-tax difference.

ScenarioHawaiiTexasGap
Typical commute12,000 mi · 25 MPG$88.80$96.00$7.20
Higher mileage15,000 mi · 25 MPG$111.00$120.00$9.00
30 MPG vehicle12,000 mi · 30 MPG$74.00$80.00$6.00
20 MPG vehicle12,000 mi · 20 MPG$111.00$120.00$9.00
20k miles · 25 MPG20,000 mi · 25 MPG$148.00$160.00$12.00

How to read this page

Hawaii vs Texas gas tax in 2026

Drivers comparing Hawaii and Texas often ask which state takes more at the pump in fuel tax. This page lines up Tax Foundation 2026 statewide gasoline totals—excise plus other per-gallon fees—then adds the same federal 18.5¢/gal to both sides.

Hawaii wins on state gasoline tax by 1.5¢/gal per gallon. Over a typical 12,000-mile year at 25 MPG, that is about $7.20 less state fuel tax than Texas.

Open each state profile for fill-up examples and neighbor tables, or use the pair picker to swap states.

How Hawaii and Texas build their gasoline tax

Hawaii's 18.5¢/gal total is 16¢/gal excise and 2.5¢/gal other fees (rank #49). Texas's 20¢/gal is 20¢/gal excise and 0¢/gal fees (rank #45).

Federal tax does not change the winner: both states add 18.5¢/gal, so the combined gap equals the state gap (1.5¢/gal combined).

“Other fees” can include environmental, inspection, or storage charges. Percentage-based sales or gross-earnings taxes on fuel may still understate retail tax in some states.

Annual cost: Hawaii vs Texas

State fuel tax ≈ (miles ÷ MPG) × (¢/gal ÷ 100). At 12,000 miles and 25 MPG (480 gallons), Hawaii is about $88.80 and Texas about $96.00 in state tax alone.

Raise mileage or lower MPG and the dollar gap scales linearly. The ladder on this page shows 12k/15k miles and 20/30 MPG scenarios so you can match your commute.

Federal tax on those same gallons is about $88.80 in either state—useful for total tax budgeting, but irrelevant to which state wins the comparison.

When Hawaii vs Texas gas tax matters

Relocation, remote-work base choice, and long cross-border commutes are the main reasons to compare these two rates. A few cents per gallon compounds quickly for high-mileage drivers and fleets.

Pump price is still mostly crude, refining, and distribution. A lower gas tax state can post a higher street price if wholesale markets are tight.

For business mileage, the IRS standard mileage rate or actual expenses already embed fuel tax—there is no separate personal gas-tax deduction for commuting.

Who this Hawaii vs Texas comparison helps

Useful if…

  • •Drivers choosing between living or working in Hawaii vs Texas.
  • •Commuters who regularly fill up on either side of a state line.
  • •Fleet and rideshare operators budgeting per-mile fuel tax.
  • •Anyone estimating how much of the pump price is tax in each state.

Use official tools if…

  • •You need IFTA, dyed diesel, or refund compliance guidance.
  • •City or county fuel taxes dominate your usual stations.
  • •You primarily buy diesel or alternative fuels.
  • •You need a live retail price quote rather than statutory tax components.

Hawaii vs Texas checklist

Before treating the rate gap as a relocation or fleet decision.

  1. 1Confirm Hawaii 18.5¢/gal vs Texas 20¢/gal.
  2. 2Add federal 18.5¢/gal if you want total tax per gallon, not just the state gap.
  3. 3Plug in your miles and MPG to size the annual dollar difference.
  4. 4Check local fuel taxes and environmental program costs where you actually fill up.
  5. 5Open the Hawaii and Texas profiles for neighbor and fill-up detail.
  6. 6Revisit after January 1 / July 1 if either state reindexes its excise.

Rates shown as 18.5¢/gal (HI) vs 20¢/gal (TX).

What the rate gap means

At default driving, Hawaii saves about $7.20 per year in state gasoline tax versus Texas.

Limits of statewide totals

County and city fuel taxes, diesel schedules, and environmental program costs (especially CA, OR, WA) may not appear in these Tax Foundation gasoline totals.

Hawaii vs Texas gas tax FAQs

Hawaii has the lower state tax by 1.5¢/gal. Hawaii totals 18.5¢/gal and Texas totals 20¢/gal before the federal 18.5¢/gal.

At 12,000 miles and 25 MPG, Hawaii is about $88.80 and Texas about $96.00—a gap of $7.20 in state tax alone.

Hawaii: 37¢/gal combined. Texas: 38.5¢/gal combined. Federal gasoline tax is 18.5¢/gal nationwide.

No. County, city, and special-district fuel taxes are excluded. California, Oregon, and Washington table rates also omit cap-and-trade and LCFS-related costs that can appear at the pump.

This comparison uses Tax Foundation gasoline totals. Federal diesel tax is 24.5¢/gal (24.4¢ excise + 0.1¢ LUST). Several states apply different diesel excise or fee schedules.

Hawaii has the lower state gasoline tax, saving about $7.20 per year at 12,000 miles and 25 MPG—before federal tax and pump-price differences.

About $2.78 in Hawaii vs $3.00 in Texas for state tax—a $0.23 gap per fill-up.

No. Federal gasoline tax is 18.5¢/gal in both states, so the ranking by state total is the same as the ranking by combined federal + state tax.

Hawaii remains lower. At 20,000 miles and 25 MPG the state-tax gap is about $12.00.

Open the Hawaii profile (/gas-tax-by-state/hawaii) and Texas profile (/gas-tax-by-state/texas) for excise/fee breakdowns, neighbor tables, and fill-up examples.

Estimates use Tax Foundation statewide gasoline totals as of January 1, 2026. Local fuel taxes and diesel rates may differ.