Treasury, IRS issue temporary rules on claims for tax paid dyed fuel

Treasury and the IRS have drawn a hard line on dyed-fuel refunds: only the person who originally paid the section 4081 tax can claim the payment. That single restriction now shapes cash flow, contract drafting and filing controls across refiners, terminals, distributors and the advisers helping them sort out who can actually recover the money.

The temporary regulations, issued April 30 and effective May 1, apply to eligible dyed fuel removals on or after December 31, 2025. They confirm that section 6435, added by section 70525 of the One, Big, Beautiful Bill Act, allows a payment equal to the tax previously paid on diesel or kerosene that later qualifies as exempt dyed fuel. The payment carries no interest, which makes timing more important for companies with tight working capital and large excise tax balances.

The operational problem is familiar to anyone working in fuel tax. Fuel can leave one terminal, return to the bulk transfer system after a shutdown or closure, and later be removed again as dyed fuel for nontaxable use. Treasury and the IRS said the new refund rule was meant to close that gap, but the agency also said its hands are tied without a statutory change: the only existing refund appropriation runs through section 6402 and 31 U.S.C. section 1324(b)(1), and that authority reaches only the taxpayer that paid the original tax.

That means the businesses closest to the transaction may not be the ones entitled to the refund. For KPMG teams advising clients in the fuel supply chain, the pressure point is not just eligibility but proof. Companies need clean records showing who paid the excise tax, when the fuel changed hands, and whether downstream users are assuming economic cost without legal refund rights. Any mismatch raises the risk of duplicate claims, denied filings or audit questions that can linger long after the fuel has moved through the system.

The IRS had already been telegraphing that message. It told taxpayers in December 2025 to hold claims until further guidance arrived, then told employees in January 2026 to suspend section 6435 claims in processing. A draft Form 8849 later repeated that taxpayers should not file section 6435 claims yet. The new rules now give claimants a path, but only on the government’s terms.

The regulations also serve as proposed rules, with comments and hearing requests due by June 30, 2026. For fuel-heavy businesses, that makes the next quarter about process discipline: aligning claims workflows, reviewing commercial agreements and confirming that the right entity is filing before cash recovery gets stuck in the wrong hands.