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Official form guide
IRS Form 8933 is the Schedule E attachment used to elect the carbon oxide sequestration credit. The electing taxpayer completes it for each credit claimant, selecting the applicable credit rate such as $28.43 per ton for old equipment in tax year 2025.
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IRS Form 8933 is the Schedule E attachment used to elect the carbon oxide sequestration credit. The electing taxpayer completes it for each credit claimant, selecting the applicable credit rate such as $28.43 per ton for old equipment in tax year 2025.
Plain English
Schedule E (Form 8933) lets a taxpayer who installed carbon‑capture equipment claim a tax credit for carbon oxide that a credit claimant captures, stores, or uses. The form records facility details, disposal method, and the credit rate, then calculates the amount each party can claim.
Submission Date
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Electing credit for carbon capture equipment placed in service before February 9, 2018
Different credit rates apply to older equipment; selecting the correct rate is required.
✓ Verify equipment placed‑in‑service date.
Claiming credit for DAC equipment placed after 2022
DAC equipment has distinct credit amounts and eligibility criteria.
✓ Confirm DAC status and placement date.
Multiple credit claimants for the same project
Each claimant requires a separate Schedule E attachment.
✓ Ensure a separate Schedule E is prepared for each claimant.
Not stated in the official source.
Checklist
Section 1 — Electing taxpayer’s information
Name, TIN, address, facility details · Taxpayer records and equipment documentation
Section 2 — Credit claimant information
Claimant name, TIN, address, attestation response · Credit claimant records
Line 5 — Placed‑in‑service date of carbon capture equipment
Date of equipment placement · Equipment service logs
Line 12 — Credit claimant disposal statement
Selection of a, b, or c box · Instructions on disposal options
Line 17 — Credit rate selection
Choice of a–g credit rate box · Inflation‑adjusted rate tables in instructions
Field map
Entity Info
1 items
Name and taxpayer ID of the entity claiming the credit.
Credit Info
1 items
Type of credit or incentive being claimed.
Calculation
2 items
The base amount used to calculate the credit.
Calculated credit amount after applying formulas and limitations.
Certification
1 items
Detailed breakdown supporting the credit calculation.
Signatures
1 items
Sign and date the form.
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Fillable formOpen in Editor->Schedule E (Form 8933) is the Rev. December 2025 edition. The form directs users to www.irs.gov/Form8933 for the latest information; no change details are provided in the source.
Quick Facts
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Do I need to fill out Schedule E for each credit claimant?
The instructions require a separate Schedule E per claimant.
→ Verify you have one Schedule E for every credit claimant listed.
What if the credit claimant is a subcontractor?
Box 11 asks if the claimant isn’t a subcontractor; a ‘No’ blocks the election.
→ Answer ‘Yes’ only if the claimant is not a subcontractor; otherwise do not elect.
Which credit rate should I select for equipment placed in 2020?
Old equipment rates apply only for equipment placed before Feb 9 2018; otherwise new equipment rates are used.
→ Check the equipment’s placed‑in‑service date and select the appropriate rate box.
How do I report metric tons on Schedule E?
Lines 1‑4 require metric‑ton amounts that must agree with Schedule A or Schedule F of Form 8933.
→ Compare the tonnage on Schedule E with the corresponding line on Schedule A/F.
Can I claim the credit if the carbon oxide was used as a tertiary injectant in EOR?
Box 12b applies to that scenario; choosing the wrong box invalidates the election.
→ Select box 12b only when the carbon oxide was used as a tertiary injectant in EOR.
What if the DAC equipment was placed in service after 2022 but I didn’t use it in EOR?
The $26 rate applies only when DAC equipment after 2022 is used in EOR or in the manner of §45Q(f)(5).
→ Verify the equipment type and use case before selecting the $26 rate.
Workflow map
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Schedule E (Form 8933) lets a taxpayer who installed carbon‑capture equipment claim a tax credit for carbon oxide that a credit claimant captures, stores, or uses. The form records facility details, disposal method, and the credit rate, then calculates the amount each party can claim.
The electing taxpayer files Schedule E (Form 8933) for each credit claimant.
Part I gathers the electing taxpayer’s name, TIN, address, facility placement date, type, and registration numbers (lines 1‑7) and the credit claimant’s name, TIN, address, subcontractor attestation, disposal details, and registration numbers (lines 8‑15). Line 17 records the chosen credit rate. Part II (lines 1‑4) reports the metric tons of qualified carbon oxide and the amount the claimant may claim.
First, fill Part I with the electing taxpayer’s information on lines 1‑7. Next, enter each credit claimant’s details on lines 8‑15, answer the subcontractor attestation, and select the correct disposal statement. Then choose the appropriate credit rate on line 17. Finally, complete Part II by entering the metric‑ton amounts on lines 1‑4 and calculate the credit; sign the form before filing.
The instructions require a separate Schedule E per claimant. Verify you have one Schedule E for every credit claimant listed.
Box 11 asks if the claimant isn’t a subcontractor; a ‘No’ blocks the election. Answer ‘Yes’ only if the claimant is not a subcontractor; otherwise do not elect.
Old equipment rates apply only for equipment placed before Feb 9 2018; otherwise new equipment rates are used. Check the equipment’s placed‑in‑service date and select the appropriate rate box.
Lines 1‑4 require metric‑ton amounts that must agree with Schedule A or Schedule F of Form 8933. Compare the tonnage on Schedule E with the corresponding line on Schedule A/F.
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