Prime Inc. Sues IRS for $11M in Reefer Fuel Tax Credits — A Case With Implications for All Refrigerated Carriers

## Prime Inc. Takes IRS to Court Over Reefer Diesel Tax Credits Prime Inc., one of North America's largest refrigerated trucking carriers, has filed suit against the Internal Revenue Service seeking the return of approximately $11 million in fuel taxes paid on diesel used exclusively to power trailer refrigeration units — a separate fuel burn that the carrier argues should qualify for a federal tax credit. According to FreightWaves, the dispute centers on a well-established operational reality in the refrigerated freight sector: every reefer load involves two distinct diesel fuel burns. The first powers the truck's engine and propels the vehicle down the road. The second fuels the trailer's independent refrigeration unit, which maintains the cold chain for temperature-sensitive cargo. These are separate fuel systems, separately fueled, yet both have historically been subject to the federal highway diesel excise tax. Prime's legal argument rests on the premise that diesel consumed by a refrigeration unit is not used for highway propulsion and therefore should not be subject to the highway fuel excise tax — making it eligible for a federal fuel tax credit or refund. ### Broader Industry Significance While Prime's scale makes the dollar figure headline-worthy, FreightWaves notes that the underlying tax credit at issue is not exclusive to large carriers. Small and independent reefer operators are equally entitled to claim the same credit on diesel consumed by their trailer refrigeration units — a detail that may be overlooked by many smaller fleets who lack dedicated tax compliance resources. For maritime and intermodal cold chain operators, the case carries additional relevance. Refrigerated container operations, drayage carriers serving port terminals, and intermodal reefer logistics providers who handle temperature-sensitive cargo moving through seaports face analogous fuel cost structures and may be subject to similar tax treatment on auxiliary refrigeration diesel. ### What Carriers Should Know Industry observers suggest that any carrier operating refrigerated trailers — regardless of fleet size — should consult with a tax professional to determine whether they have unclaimed credits on reefer unit fuel consumption. The statute of limitations on federal tax refund claims is generally three years, meaning eligible carriers may have a window to recover past overpayments. The outcome of Prime's litigation could set a meaningful precedent, potentially prompting the IRS to clarify its position on reefer diesel taxation and opening the door for broader industry-wide refund claims. The case is ongoing. FreightWaves will continue to monitor developments as the suit progresses through the courts.