What is the Carbon Capture Credit and what is its primary purpose?

The Carbon Capture Credit, primarily governed by IRC Section 45Q, incentivizes the capture and secure storage or utilization of carbon dioxide. Its main purpose is to reduce greenhouse gas emissions by making carbon capture projects economically viable. This credit supports both direct air capture (DAC) and industrial carbon capture technologies.

Who qualifies for the Carbon Capture Credit under IRC Section 45Q?

Generally, owners of carbon capture equipment that capture qualified carbon oxide and either dispose of it in secure geological storage or utilize it in a beneficial manner qualify. This includes industrial facilities, power plants, and direct air capture facilities. The credit is available to taxpayers who physically or contractually ensure the capture and disposition/utilization.

What are the current dollar amounts for the Carbon Capture Credit per metric ton?

For carbon oxide captured and stored in secure geological storage (e.g., saline formations), the credit is $85 per metric ton. For carbon oxide used as a tertiary injectant in enhanced oil or natural gas recovery (EOR/EGR) or for other beneficial utilization, the credit is $60 per metric ton. Direct Air Capture (DAC) projects receive higher rates: $180/metric ton for secure geological storage and $130/metric ton for utilization.

Are there minimum capture thresholds required to claim the 45Q credit?

Yes, for industrial facilities and power plants, the minimum capture threshold is 18,750 metric tons of qualified carbon oxide per year. For direct air capture (DAC) facilities, the threshold is 1,000 metric tons per year. Facilities capturing less than these amounts are generally not eligible for the credit under current law.

How do taxpayers claim the Carbon Capture Credit on their tax returns?

Taxpayers claim the credit by filing Form 8933, Carbon Oxide Sequestration Credit, with their annual income tax return. This form requires detailed information about the captured carbon oxide, its disposition or utilization, and the facility where it was captured. Proper documentation and certification are crucial for substantiating the claim.

What IRS forms and documentation are essential for substantiating a 45Q claim?

Form 8933 is the primary form. Supporting documentation includes contracts for carbon capture, transportation, and storage/utilization, as well as monitoring, reporting, and verification (MRV) plans approved by the EPA (for geological storage) or other relevant agencies. Detailed records of captured volumes and disposition methods are critical for audit defense.

Can the Carbon Capture Credit be transferred or sold to other entities?

Yes, under IRC Section 45Q(f)(3), the credit can be transferred to the person who disposes of the qualified carbon oxide or uses it as a tertiary injectant. More recently, the Inflation Reduction Act of 2022 introduced elective direct pay and transferability provisions for certain energy credits, including 45Q, allowing eligible taxpayers to monetize the credit more easily.

What are common mistakes taxpayers make when claiming the 45Q credit?

Common mistakes include failing to meet the minimum capture thresholds, inadequate monitoring, reporting, and verification (MRV) documentation, incorrect calculation of credit amounts, and improper classification of carbon oxide disposition. Not understanding the 'placed in service' rules for equipment can also lead to errors. Ensure compliance with IRS guidance, including Notice 2020-12.

What are potential audit red flags for the Carbon Capture Credit?

Red flags include inconsistent capture volumes, lack of EPA-approved MRV plans for geological storage, insufficient documentation for utilization projects, and claims for facilities that don't clearly meet the 'placed in service' requirements. Large credit claims without robust supporting evidence or a history of non-compliance can also trigger scrutiny.

How does the 'placed in service' date impact eligibility for the 45Q credit?

The credit is available for qualified carbon oxide captured by carbon capture equipment that is originally placed in service after February 8, 2018. Equipment placed in service before this date may still qualify if it is retrofitted to capture carbon oxide, provided the retrofit meets specific IRS criteria and the original equipment was placed in service after October 22, 2004.

What are the 'recapture' rules for the Carbon Capture Credit?

IRC Section 45Q(f)(4) outlines recapture rules if the securely stored or utilized carbon oxide ceases to be sequestered. If carbon oxide leaks or is released within a specified period (generally 3 years for EOR/EGR, longer for secure geological storage), a portion of the previously claimed credit may be recaptured. Taxpayers must monitor for such events.

How does the 45Q credit interact with other energy or environmental tax credits?

The 45Q credit can interact with other credits, but 'double-dipping' is generally prohibited. For example, if equipment qualifies for both 45Q and another credit like the Investment Tax Credit (ITC) under IRC Section 48, taxpayers typically must choose one. Careful analysis is required to optimize credit stacking while avoiding disallowed claims.

Are there specific requirements for monitoring, reporting, and verification (MRV) for 45Q?

Yes, for geological storage, taxpayers must develop and implement an EPA-approved MRV plan under 40 CFR Part 98, Subpart RR. For utilization, taxpayers must follow specific lifecycle analysis (LCA) requirements to demonstrate a net reduction in greenhouse gas emissions. Robust MRV is crucial for credit validity and avoiding recapture.

What are the significant changes to 45Q introduced by the Inflation Reduction Act of 2022?

The IRA significantly increased credit values (e.g., to $85/ton for secure storage, $180/ton for DAC), lowered annual capture thresholds, and extended the 'placed in service' deadline to January 1, 2033. It also introduced elective direct pay and transferability provisions, making the credit more accessible and valuable. These changes aim to accelerate carbon capture deployment.

How does the 'prevailing wage and apprenticeship' requirement affect the 45Q credit?

To qualify for the full credit amounts under the IRA, projects must meet prevailing wage and apprenticeship requirements during construction and for alterations/repairs during the credit period. Failure to meet these requirements can result in a significant reduction of the credit amount (e.g., from $85 to $17 per ton). This is a critical compliance aspect for new projects.

What is the 'beginning of construction' rule for 45Q projects?

To qualify for the credit, construction of the carbon capture equipment must begin before January 1, 2033. The IRS provides guidance on what constitutes 'beginning of construction,' typically involving either physical work of a significant nature or incurring 5% or more of the total project cost. This deadline is crucial for project planning.

Can the 45Q credit be claimed for carbon captured from ambient air (Direct Air Capture)?

Yes, the Inflation Reduction Act significantly enhanced the credit for Direct Air Capture (DAC) projects. DAC facilities now receive higher credit amounts ($180/metric ton for secure geological storage, $130/metric ton for utilization) and have a lower annual capture threshold of 1,000 metric tons. This aims to specifically incentivize DAC technologies.

What is the role of third-party verification in claiming the 45Q credit?

For geological storage, an independent third party must attest to the proper storage and monitoring of the carbon oxide. For utilization, a third-party lifecycle analysis (LCA) must verify the net reduction in greenhouse gas emissions. This independent verification adds credibility to the claim and is often a requirement for IRS acceptance.

Are there any specific rules for carbon oxide used in Enhanced Oil Recovery (EOR)?

Yes, carbon oxide used as a tertiary injectant in EOR qualifies for a credit of $60 per metric ton (or $130/metric ton for DAC). However, the carbon oxide must be stored in secure geological formations, and the project must comply with EPA's MRV requirements for geological sequestration. The EOR project cannot simply vent the CO2 after use.

What are the implications of the 2026 law changes for 45Q (sunset provisions or modifications)?

There are no specific sunset provisions for the 45Q credit in 2026. The Inflation Reduction Act extended the 'beginning of construction' deadline to January 1, 2033, meaning projects started before this date can claim the credit for 12 years from the date the equipment is placed in service. The credit is a long-term incentive, not expiring in 2026.

Carbon Capture & Sequestration Credit (45Q) — 2026 Guide

Overview: The Carbon Capture & Sequestration Credit (Section 45Q)

The Section 45Q tax credit is a crucial incentive designed to encourage the capture and secure geological sequestration or utilization of carbon oxide. Enacted to support decarbonization efforts, this credit provides a significant financial benefit to businesses investing in technologies that reduce atmospheric carbon dioxide. The credit has undergone several revisions, most notably by the One, Big, Beautiful Bill Act (OBBBA) in 2025, which significantly updated its structure and credit values to further accelerate the deployment of carbon capture, utilization, and storage (CCUS) projects.

What is the Carbon Capture & Sequestration Credit?

The Carbon Capture & Sequestration Credit, codified under Section 45Q of the Internal Revenue Code, is a performance-based tax credit for each metric ton of qualified carbon oxide captured from an industrial source or directly from the ambient air and then either:

Disposed of in secure geological storage.
Used as a tertiary injectant in a qualified enhanced oil or natural gas recovery project and disposed of in secure geological storage.
Utilized in a manner described in Section 45Q(f)(5), such as conversion into a useful product.

The credit aims to stimulate investment in CCUS technologies, which are vital for reducing greenhouse gas emissions from hard-to-abate sectors and for achieving climate goals. The OBBBA introduced substantial enhancements, including increased credit amounts and expanded eligibility criteria, making the credit more attractive for a wider range of projects.

Who Qualifies for the Carbon Capture & Sequestration Credit?

Eligibility for the Section 45Q credit depends on several factors related to the facility, the carbon capture equipment, and the method of carbon oxide disposal or utilization. Key qualifications include:

Qualified Facility: A facility that captures carbon oxide from an industrial source or directly from the ambient air. The OBBBA expanded the definition and lowered annual capture thresholds, making more projects eligible.
Carbon Capture Equipment: Equipment must be originally placed in service on or after February 9, 2018, to qualify for the enhanced credit rates. Equipment placed in service before this date may qualify for lower rates.
Qualified Carbon Oxide: Carbon oxide that is captured and then either securely stored, used for enhanced oil/natural gas recovery (EOR/EGR) with secure storage, or utilized. It must not escape into the atmosphere.
Secure Geological Storage: This generally means injection into a well that complies with applicable Underground Injection Control (UIC) regulations and is not used as a tertiary injectant in a qualified EOR project, or is used as a tertiary injectant in a qualified EOR project and stored in compliance with Subpart RR of 40 CFR Part 98 or CSA/ANSI ISO 27916:2019 standards.
Prevailing Wage and Apprenticeship Requirements: To qualify for the increased credit amounts, projects must satisfy prevailing wage and apprenticeship requirements during construction and alteration/repair of the facility and carbon capture equipment.
Foreign Entities: The OBBBA introduced restrictions, disallowing the credit for specified foreign entities or foreign-influenced entities for taxable years beginning after July 4, 2025.

How to Claim the Carbon Capture & Sequestration Credit

Claiming the Section 45Q credit involves specific reporting and certification procedures:

Form 8933: Taxpayers must file Form 8933, "Carbon Oxide Sequestration Credit," with their timely filed federal income tax return or Form 1065.
Monitoring, Reporting, and Verification (MRV): For secure geological storage, compliance with EPA's Subpart RR of 40 CFR Part 98 is generally required. This involves developing and implementing an EPA-approved site-specific MRV Plan and reporting the amount of carbon dioxide geologically sequestered.
Safe Harbor (Notice 2026-1): For Calendar Year 2025 Secure Geological Storage, if the EPA does not launch its electronic Greenhouse Gas Reporting Tool (e-GGRT) by June 10, 2026, taxpayers may rely on Notice 2026-1. This safe harbor allows taxpayers to satisfy Subpart RR requirements by preparing and submitting the Annual Report to an independent engineer or geologist for certification, instead of through e-GGRT.
Certification: For projects determining volumes pursuant to CSA/ANSI ISO 27916:2019, a qualified independent engineer or geologist must certify the documentation, including mass balance calculations and monitoring/containment assurance. This certification must be annual and made under penalties of perjury.
Life Cycle Analysis (LCA) Approval: For utilization credits, taxpayers must receive approval of their LCA prior to claiming the credit.

2026 Limits, Amounts, and Rates

The OBBBA significantly increased the credit amounts for Section 45Q, particularly for facilities that meet prevailing wage and apprenticeship requirements. The base credit amounts are multiplied by five if these requirements are met. For 2026, the credit amounts are:

For Qualified Carbon Oxide Disposed of in Secure Geological Storage (not EOR/EGR) or Utilized:
- Base Credit: $17 per metric ton.
- Increased Credit (with prevailing wage & apprenticeship): $85 per metric ton.
For Qualified Carbon Oxide Used as a Tertiary Injectant in EOR/EGR and Disposed of in Secure Geological Storage:
- Base Credit: $12 per metric ton.
- Increased Credit (with prevailing wage & apprenticeship): $60 per metric ton.
For Direct Air Capture (DAC) Facilities:
- Base Credit: $36 per metric ton.
- Increased Credit (with prevailing wage & apprenticeship): $180 per metric ton.

These amounts are subject to an annual inflation adjustment for taxable years beginning after 2026. For 2026, the applicable dollar amount for Part III of Form 8933 is $17 per metric ton, as per the instructions for Form 8933 (12/2025).

Common Mistakes That Cost Taxpayers Money

Taxpayers often make several mistakes when claiming the Section 45Q credit, leading to disallowances or reduced credit amounts:

Failure to Meet Prevailing Wage and Apprenticeship Requirements: Many taxpayers overlook or fail to adequately document compliance with these critical requirements, thereby missing out on the significantly higher credit amounts.
Inadequate MRV Documentation: Insufficient or improperly maintained monitoring, reporting, and verification documentation for secure geological storage is a frequent issue. This includes not having an EPA-approved MRV plan or failing to adhere to Subpart RR or ISO standards.
Incorrectly Calculating Credit Amounts: Misinterpreting the base versus increased credit amounts, or failing to apply the correct inflation adjustment (when applicable), can lead to errors.
Late or Missing Form 8933: The credit must be claimed on Form 8933, filed with a timely federal income tax return. Late filings or failure to attach the form will result in disallowance.
Lack of Independent Engineer/Geologist Certification: For certain projects, particularly those relying on ISO standards or the safe harbor in Notice 2026-1, the absence of a qualified independent engineer or geologist's certification is a critical error.

Failure to Obtain LCA Approval: For carbon oxide utilization projects, claiming the credit without prior approval of the Life Cycle Analysis is a common mistake.

Non-Compliance with Foreign Entity Restrictions: For taxable years beginning after July 4, 2025, specified foreign entities or foreign-influenced entities are ineligible, and failure to recognize this can lead to disallowance.

IRS Code Section Reference

The Carbon Capture & Sequestration Credit is governed by Section 45Q of the Internal Revenue Code.

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Navigating the complexities of the Section 45Q Carbon Capture & Sequestration Credit requires expert knowledge to maximize your benefits and ensure compliance. Don't leave money on the table or risk costly errors. Our experienced tax strategists at Uncle Kam are here to help you understand the nuances of this powerful incentive and integrate it effectively into your financial planning. Book a personalized consultation today to optimize your tax strategy and drive your sustainability goals forward. Book Your Consultation Now!

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Carbon Capture Credit

Overview: The Carbon Capture & Sequestration Credit (Section 45Q)

What is the Carbon Capture & Sequestration Credit?

Who Qualifies for the Carbon Capture & Sequestration Credit?

How to Claim the Carbon Capture & Sequestration Credit

2026 Limits, Amounts, and Rates

Common Mistakes That Cost Taxpayers Money

IRS Code Section Reference

Take Control of Your Tax Strategy

Carbon Capture Credit FAQs

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