
The U.S. Treasury Division and Interior Earnings Carrier on Aug. 14 expanded and prolonged a protected harbor for the federal Phase 45Q carbon seize tax credit score, addressing uncertainty round deliberate and working carbon seize initiatives.
The motion comes because the U.S. Environmental Coverage Company considers getting rid of greenhouse fuel reporting necessities used to file how a lot captured carbon dioxide is securely saved and qualifies for the credit score.
Treasury and the IRS issued Understand 2026-50 to supply another compliance pathway if EPA’s digital reporting device is unavailable. The steering extends an previous protected harbor past carbon dioxide saved in 2025 and expands it to certified carbon dioxide utilized in enhanced oil or herbal fuel restoration initiatives.
The steering additionally permits the protected harbor for use in figuring out whether or not prior to now claimed credit should be recaptured—or successfully repaid—as a result of saved carbon has leaked into the ambience.
Stakeholders additionally instructed Treasury and IRS that enhanced oil and fuel restoration initiatives may just face vital prices, agenda constraints and compliance problems in the event that they needed to shift from EPA’s Subpart RR reporting usual to different to be had requirements.
The possible hole stems from EPA’s September 2025 proposal to do away with maximum necessities of its Greenhouse Gasoline Reporting Program, together with Subpart RR necessities for geologic sequestration of carbon dioxide. Beneath Subpart RR, lined amenities increase EPA-approved site-specific tracking, reporting and verification plans and document how a lot carbon dioxide is geologically saved. Present 45Q laws depend on the ones necessities in figuring out whether or not captured carbon has been securely saved.
Choice Reporting Trail
The brand new protected harbor applies when EPA does now not make its digital greenhouse fuel reporting device to be had through March 31 following the appropriate reporting 12 months. Tasks the use of it should proceed complying with Subpart RR necessities as they existed Dec. 31, 2025, and feature an appropriate EPA-approved tracking, reporting and verification plan. As an alternative of filing the specified annual document thru EPA’s device, a taxpayer submits it to an unbiased engineer or geologist registered or qualified in a state for certification.
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“We’re thankful to Treasury and IRS for offering higher simple task to taxpayers electing the 45Q tax credit score with nowadays’s understand and extension of the protected harbor,” Jessie Stolark, government director of the Carbon Seize Coalition, mentioned in a observation.
ENR reported in 2023 that Fluor Corp. was once seeing an upturn in investment inquiries and mission research after the Inflation Aid Act higher the 45Q credit score for qualifying point-source initiatives from $50 to up to $85 consistent with metric ton. Fluor Vice President Curt Graham mentioned then that 45Q had “essentially modified the income scenario and go back on funding” for carbon seize initiatives.
The protected harbor applies to qualifying garage starting Jan. 1, 2025, in the course of the finish of the calendar 12 months during which Treasury and IRS factor additional intervening time steering or proposed laws addressing dimension, reporting and verification necessities.
Treasury and IRS additionally requested Aug. 14 whether or not the lately issued ISO 27914:2026 usual for geological carbon garage, or every other technique, may just change Subpart RR if EPA removes the reporting necessities. Feedback are due Oct. 30.




