Schedule E (Form 8933) Guide: Section 45Q Credit Election

Introduction – What Is Form 8933 (Schedule E)?

Schedule E (Form 8933), titled Election Certification, is a specialized tax schedule governed by the Internal Revenue Service (IRS) and the U.S. Department of the Treasury. It serves as an official attachment to Form 8933, the core tax form used to claim the Section 45Q Carbon Oxide Sequestration Credit.

Under federal tax law, the Section 45Q tax credit initially belongs to the owner of the carbon capture equipment. Schedule E is the formal legal and tax mechanism used when that owner elects to transfer some or all of their tax credit to the company that physically disposes of, injects, or commercially utilizes the captured carbon oxide.

Purpose of the Form – Why Does Schedule E (Form 8933) Exist?

Industrial carbon capture projects frequently involve commercial partnerships between separate businesses. For example, an industrial manufacturing plant may capture carbon dioxide, while an independent pipeline company transports it, and a specialized geological storage operator permanently buries it underground.

To provide commercial flexibility, Internal Revenue Code Section 45Q(f)(3)(B) allows the capture equipment owner (the “electing taxpayer”) to pass the credit through to the party responsible for permanent geological storage, enhanced oil recovery (EOR), or commercial utilization (the “credit claimant”). Schedule E provides the IRS with a transparent audit trail, documenting exactly how many metric tons of carbon and how many credit dollars were transferred between the parties.

Who Needs to File This Form?

Schedule E (Form 8933) is required for both sides of a Section 45Q credit pass-through transaction:

• The Electing Taxpayer: The owner of the carbon capture equipment who formally elects under Section 45Q(f)(3)(B) to allow another party to claim all or a portion of the tax credit. The electing taxpayer completes and files Schedule E with their annual tax return.
• The Credit Claimant: The disposal site owner, EOR operator, or utilization facility owner who receives the transferred credit. The credit claimant must obtain a signed copy of Schedule E from the electing taxpayer and attach it to their own Form 8933 and income tax return.

A separate Schedule E must be prepared and filed for each individual facility and for each credit claimant receiving transferred credits.

Who Is Exempt / Not Required to File?

You do not need to prepare or submit Schedule E (Form 8933) if your carbon capture arrangement meets any of the following criteria:

• Retaining Full Credits: You own the carbon capture equipment, arrange for disposal or utilization, and claim 100 percent of the Section 45Q credit on your own tax return without transferring any portion to off-takers.
• Section 6418 Credit Sales: You are transferring or selling clean energy tax credits for cash under Section 6418 of the Inflation Reduction Act. Section 6418 transfers follow separate pre-filing registration and transfer election statement procedures on Form 3800 rather than Schedule E.
• Subcontractor Arrangements: Treasury regulations strictly prohibit electing to allow a mere subcontractor to claim the credit. If an entity is legally classified as a subcontractor rather than a primary disposal or utilization partner, Schedule E cannot be used.

When to File Schedule E (Form 8933)

A Section 45Q(f)(3)(B) election is an annual election that must be made each tax year. It is filed alongside Form 8933 as part of your annual corporate or partnership federal income tax return.

The form must be submitted no later than the due date (including valid extensions) of your federal income tax return or Form 1065 for the tax year in which the credit arises:

• Partnerships and S Corporations (Form 1065 & Form 1120-S): Typically March 15 (or September 15 with an extension).
• C Corporations (Form 1120): Typically April 15 (or October 15 with an extension).

Crucial Rule: The IRS strictly forbids making a Section 45Q(f)(3)(B) election on an amended tax return or via an Administrative Adjustment Request (AAR). If you fail to file Schedule E with your timely filed original return (or timely extended return), you permanently forfeit the right to transfer credits for that tax year.

Where and How to File

Schedule E (Form 8933) is not a standalone document; it must be attached directly to Form 8933 and submitted with your primary federal income tax return.

Most taxpayers file Schedule E electronically through authorized tax preparation software. If filing a physical paper return, assemble Schedule E behind Form 8933 and mail the complete tax package to the IRS address as per instructions for your specific entity tax return. The electing taxpayer must also promptly provide a completed, signed copy of Schedule E to the credit claimant so they can attach it to their own timely filed return.

Step-by-Step Instructions to Fill Schedule E (Form 8933)

Schedule E is divided into two primary parts covering party identification, facility details, and tonnage allocation math.

Header Information

Enter the legal business name and Employer Identification Number (EIN) or Taxpayer Identification Number (TIN) of the entity filing the schedule, matching the primary tax return.

Part-by-Part Instructions

Part & Section	Field Description	Filing Directions
Part I, Section 1 (Lines 1–7b)	Electing Taxpayer Information	Provide the capture equipment owner’s name, TIN, business address, capture facility location, equipment placed-in-service date, facility type, IRS registration number, and EPA e-GGRT facility ID.
Part I, Section 2 (Lines 8–10)	Credit Claimant Information	Enter the legal name, TIN, and address of the credit claimant receiving the credit.
Part I, Section 2 (Line 11)	Subcontractor Attestation	Check Yes to attest that the claimant is not a subcontractor. If you cannot answer “Yes,” you cannot legally make the election.
Part I, Section 2 (Lines 12–16)	Claimant Activity & Facility Details	Check whether the carbon was disposed of in dedicated geological storage, injected in an EOR project, or utilized commercially. Provide the claimant’s site location, IRS registration number, and EPA e-GGRT ID.
Part I, Section 2 (Line 17)	Applicable Credit Rate	Check the statutory dollar amount or inflation-adjusted credit rate per metric ton that applies to the transferred volume for the current tax year.
Part II (Lines 1–3)	Gross Captured Tonnage	Report the total metric tons of qualified carbon oxide captured and transferred to the credit claimant for storage, EOR, or utilization.
Part II (Lines 4–6)	Credit Allowed to Claimant	Enter the exact metric tons allowed to the claimant. Multiply by the credit rate from Line 17 to determine the total credit dollar amount transferred. The claimant reports this on their Form 8933.
Part II (Lines 7–8)	Credit Retained by Electing Taxpayer	Subtract the transferred tonnage from total tonnage. Multiply the remaining metric tons by the credit rate to determine the dollar credit retained by the equipment owner.

Required Documents and Information Needed Before Filling

To substantiate a Section 45Q(f)(3)(B) election during an IRS audit, assemble these commercial and regulatory records:

• Binding Written Contracts: Legally binding offtake, transportation, and disposal or utilization agreements between the electing taxpayer and the credit claimant that explicitly address credit ownership and storage compliance.
• IRS Registration Numbers: Valid IRS pre-filing registration numbers for the capture facility and the recipient storage or utilization project.
• EPA Greenhouse Gas Filings: Electronic Greenhouse Gas Reporting Tool (e-GGRT) confirmation logs and Subpart RR or ISO 27916 mass-balance accounting reports.
• Custody Transfer Flow Meter Logs: Certified meter records establishing the precise metric tons of carbon transferred from the capture facility to the claimant.
• Department of Energy / IRS LCA Approvals: An approved Life Cycle Analysis letter if the credit claimant is utilizing carbon oxide commercially under Section 45Q(f)(5).

Common Mistakes to Avoid

Because the Section 45Q pass-through rules contain strict procedural hurdles, avoid these frequent errors:

• Filing on an Amended Return: The IRS does not allow late or retroactive elections. Attempting to make a Section 45Q(f)(3)(B) election on an amended return invalidates the transfer entirely.
• Transferring to Subcontractors: You cannot elect to pass credits to an operating subcontractor who lacks an ownership or direct offtake contractual position in the project.
• Combining Multiple Claimants on One Form: You must file a separate Schedule E for every individual credit claimant and for each separate facility.
• Mismatched Tonnage Reporting: The tonnage and dollar amounts reported by the electing taxpayer on Schedule E must match the numbers reported on the credit claimant’s Form 8933, Schedule A, or Schedule F down to the exact metric ton.
• Failing to Furnish Copies: If the electing taxpayer fails to provide a signed copy of Schedule E to the credit claimant, the claimant cannot claim the credit on their return.

Penalties for Non-Filing or Errors

Improperly executing Schedule E carries substantial financial risks for both project partners:

• Total Loss of Transferred Credits: If the election is deemed invalid due to late filing or missing documentation, the credit claimant will be denied the credit. If the capture owner’s filing deadline has passed, the credit may be permanently lost.
• Accuracy-Related Penalties: If the claimant claims disallowed credits, the IRS can assess a 20 percent accuracy-related penalty under Section 6662 on the underpaid tax amount.
• Recapture Liability Exposure: Under Section 45Q(f)(4), if carbon oxide stored by the credit claimant subsequently leaks into the atmosphere, the credit claimant who took the credit is legally liable for repaying the recaptured tax.
• Statutory Interest: Mandatory compound interest under Section 6601 applies to all back taxes resulting from disallowed credit claims.

Related Forms and Schedules

Schedule E operates within a larger ecosystem of carbon sequestration tax forms:

• Form 8933: Carbon Oxide Sequestration Credit (the master calculation return).
• Schedule A (Form 8933): Disposal or Enhanced Oil Recovery Owner Certification.
• Schedule B (Form 8933): Disposal Operator Certification.
• Schedule C (Form 8933): Enhanced Oil Recovery Operator Certification.
• Schedule D (Form 8933): Recapture Certification.
• Schedule F (Form 8933): Utilization Certification.
• Form 3800: General Business Credit.
• Form 1120 / Form 1065: Corporate or Partnership income tax returns.

Frequently Asked Questions

What is a Section 45Q(f)(3)(B) election?

It is a formal tax election that allows the owner of carbon capture equipment to transfer all or part of their Section 45Q carbon capture tax credits to the party who securely disposes of, injects, or utilizes the carbon oxide.

Can the capture owner transfer only a portion of the credit?

Yes. The electing taxpayer can allow the credit claimant to take any designated portion of the allowable credit and retain the remainder to offset their own tax liability, as calculated in Part II of Schedule E.

Can I make this election on an amended return?

No. Under IRS rules, the election must be made on a timely filed original federal income tax return (including extensions). It cannot be made or changed on an amended return.

How does Schedule E differ from an IRA Section 6418 credit transfer?

Section 45Q(f)(3)(B) (Schedule E) transfers credits specifically to project operational partners who store, inject, or utilize the carbon. Section 6418 allows clean energy credits to be sold to unrelated third-party buyers for cash and is reported on Form 3800.

Does the credit claimant need to submit Schedule E?

Yes. The electing taxpayer prepares Schedule E and provides a copy to the credit claimant. The credit claimant must attach that copy to their own Form 8933 when filing their tax return.

Can credits be transferred to an operating subcontractor?

No. Treasury regulations explicitly state that subcontractors are not eligible credit claimants under Section 45Q(f)(3)(B), which is affirmed on Line 11 of Schedule E.

Conclusion – Key Takeaways Summarized

IRS Form 8933 (Schedule E) is the essential certification that allows carbon capture equipment owners to transfer valuable Section 45Q tax credits to their storage, enhanced oil recovery, or utilization partners. It provides the IRS with binding documentation of the transfer while defining the exact tonnage and dollar figures for each party.

To protect your credits, file Schedule E on a timely original return, prepare a distinct schedule for each facility and claimant, ensure your contract and meter numbers reconcile perfectly, and provide executed copies to all project partners well before tax filing deadlines.