What’s new
On April 12, 2026, the Pennsylvania Petroleum Association reported that the IRS has acknowledged renewed delays in processing federal motor fuel excise tax refund claims and told industry groups it is surging staff and changing workflows to catch up. In a March 16, 2026 letter to the Energy Marketers of America (EMA), the IRS said resource constraints caused a backlog in Form 8849 claims but that it expects to return to normal processing in May 2026.
Who is affected—and why trucking should care
The delays center on “ultimate vendor” claims tied to sales of clear, tax-excluded diesel to state and local governments. Those claims are filed on Schedule 2 of Form 8849 by registered ultimate vendors. While most truck fleets don’t file these particular claims, your wholesale suppliers and fuel partners often do—meaning any slowdown in refunds can ripple into contract terms, cash flow, and price stability across your fuel supply chain. The IRS’s current guidance confirms Schedule 2 is the vehicle for registered ultimate vendors of un-dyed diesel, un-dyed kerosene, gasoline, and aviation gasoline to request refunds.
EMA’s December 19, 2025 letter to the IRS flagged refund lags that had stretched well beyond typical timelines—leaving many small and mid-sized energy marketers fronting federal diesel tax for months at a time. That upstream cash crunch can affect delivery schedules, discounting, and bid pricing that fleets ultimately see at the rack or on invoices.
Action steps for fleets and fuel buyers
- Talk to your suppliers about timelines. If your government or municipal work depends on clear, tax-excluded diesel, ask vendors how the backlog has affected their claims and whether they anticipate any changes to pricing or payment terms through May.
- Encourage electronic filing. The IRS confirms that Form 8849 Schedules 1, 2, 3, 5, 6, and 8 are supported through the Excise Tax e-File and Compliance (ETEC) program on the Modernized e-File (MeF) platform. E-file tends to move faster and avoids mailroom bottlenecks.
- Avoid duplicate submissions and bad attachments. IRS e-file guidance warns that empty payment vouchers and duplicate return IDs can trigger manual reviews and slow processing further. Coordinate with your transmitter or software provider to prevent rejections.
- Verify the right schedule is used. If your company ever claims fuel refunds directly (for example, for non-taxable uses or other excise categories), ensure you’re on the correct Form 8849 schedule and keep buyer statements/waivers in order. The IRS’s Form 8849 page outlines who files which schedule.
- Have a point of escalation. For tax-related excise questions, the IRS lists an Excise Hotline operating Monday–Friday, 6 a.m.–6 p.m. ET—a better fit than the general e-Help Desk for return status questions.
Key dates and expectations
Here’s the timeline as it stands: EMA formally notified the IRS of widespread delays on December 19, 2025. The IRS responded on March 16, 2026, citing staffing constraints and process changes and projecting that the backlog of Form 8849 claims would be resolved in May 2026. The industry update noting that commitment was published on April 12, 2026. For fleet managers, that means any residual turbulence in vendor refund timing should begin easing in the coming weeks—though you should still budget conservatively until normal cycles are confirmed by your suppliers.
Bottom line for owner-operators and fleets
This is primarily a supplier-facing tax administration issue, but its effects can reach your P&L. When fuel marketers must carry federal diesel tax for extended periods, it strains working capital and can influence price quotes, delivery priorities, and credit terms. The IRS now says relief is imminent. Use the next few weeks to compare bid assumptions, revisit any surcharge or indexation language tied to fuel procurement, and confirm with your fuel partners when they expect processing to normalize. Staying proactive on supplier conversations—and insisting on clean, electronic submissions where applicable—will help you avoid last-mile surprises as the IRS digs out and catches up.
Sources Consulted: Pennsylvania Petroleum Association; Energy Marketers of America; Internal Revenue Service.
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This article was prepared exclusively for truckstopinsider.com. For professional tax advice, consult a qualified professional.
