Red Dyed Diesel Order Only Defers 24.4 Cents a Gallon of Tax

The red dyed diesel order is a tax IOU, and I would not change how I fuel because of it. The order signed Monday night, October 5, covers October 5 through December 31, 2026. Overdrive and CCJ reported that it defers the federal excise tax on on road dyed diesel and does not eliminate it, with no interest or penalties on the deferred amount.

Treasury has to explore ways to wipe out the deferred amount, possibly through legislation. The order itself does not do that.

Diesel is expensive, so the pull is real. Overdrive and CCJ reported the national average was $6.20 per gallon, down from a record $6.53 in late September. OOIDA said the order will provide minimal relief.

Here is the math. The Auto Wire calculated that a 200 gallon fill defers about $48.80, which is about 3.9% of the pump price at the EIA October 5 average of $6.199 per gallon.

The White House says truckers would save over $100 per refill, as The Auto Wire noted. At 24.4 cents a gallon, that would take about 410 gallons.

The state side does not move. The Auto Wire explains that red diesel bought without state tax earns no state tax credit, but the miles still count.

State tax is still owed on your IFTA return. The fourth quarter return is due January 31, 2027, which is a Sunday, so the deadline moves to Monday, February 1.

Your own savings depend on your mpg. Put your mpg and pump price into the fuel cost calculator to see what a gallon costs you per mile.

The fair counter argument is that some savings are real. At least 11 states have issued their own relief, including Alabama, Texas, Nebraska and Iowa, according to Overdrive and CCJ, though some of those actions do not apply directly to truck drivers.

If you run mostly in those states, your picture may be better than most. Even then, you may still owe state fuel taxes through IFTA in states that have not acted.

The bigger problem is that the order may not be usable yet. The Energy Marketers of America report says the order does not itself authorize highway sales or use of dyed diesel.

Relief depends on Treasury guidance, and Treasury was to decide by about October 10 who is covered. The report adds that no EPA waiver of the dye prohibition had been issued, and that state dyed fuel prohibitions stay in effect unless a state acts.

Sulfur is a separate rule. The same report says dyed fuel on the road must still meet the 15 ppm ultra low sulfur standard. The one exception I found is an EPA waiver for Texas that runs October 5 through October 24 and covers only highway trucks built before 2007 without a particulate filter or catalytic emission control.

As of this writing, I could not find published Treasury or IRS implementing guidance in the coverage I checked. Check IRS.gov before you rely on any of this.

Who ends up owing the deferred tax, the seller or the driver, is not settled in the coverage I read. The Energy Marketers of America report warns that fuel marketers could be liable when the deferral ends, so keep your records.

The penalty for using dyed fuel on the highway is the greater of $1,000 or $10 per gallon under section 6715. The order tells the IRS to announce that it will not apply that penalty during the window.

If a stop sells you red diesel for the highway, keep the receipt and the paperwork, because you may need them later.

Know your real savings per gallon and per mile before you change how you fuel. The federal tax is only deferred, and state tax is still owed through IFTA. Run your own miles and gallons through the IFTA calculator before your next fill.