Part III. Credit Calculations

Line 1 Qualified carbon oxide captured using carbon capture equipment or DAC facility, disposed of in secure geological storage, and not used as a tertiary injectant in a qualified enhanced oil or natural gas recovery project, nor utilized as described in section 45Q(f)(5).

Line 1e. Enter the number of metric tons captured and securely stored (physically disposed of) by another person and for which you allow that person to claim the resulting carbon oxide sequestration credit. See Section 45Q(f)(3) (B) Election, earlier, and instructions for attaching Schedule E (Form 8933) for each disposal site.

Line 1g. Enter the applicable inflation adjusted credit rate or applicable dollar amount. See 2025 inflation adjusted credit rates and applicable dollar amounts , earlier.

Line 1i. See Increased Credit Amount for Facilities and Equipment , earlier.

Line 2 Qualified carbon oxide captured using carbon capture equipment or DAC facility, used as a tertiary injectant in a qualified enhanced oil or natural gas recovery project, and disposed of in secure geological storage.

Line 2e. Enter the number of metric tons captured and injected by another person and for which you allow that person to claim the resulting carbon oxide sequestration credit. See Section 45Q(f)(3)(B) Election, earlier, and instructions for attaching Schedule E (Form 8933) for each recovery project.

Line 2g. Enter the applicable inflation adjusted credit rate or applicable dollar amount. See 2025 inflation adjusted credit rates and applicable dollar amounts , earlier.

Line 2i. See Increased Credit Amount for Facilities and Equipment , earlier.

Line 3 Qualified carbon oxide captured using carbon capture equipment or DAC facility, and utilized as described in section 45Q(f)(5).

Line 3e. Enter the number of metric tons captured and physically utilized by another person and for which you allow that person to claim the resulting carbon oxide sequestration credit (expressed as carbon dioxide equivalents that were determined pursuant to an approved LCA). See Section 45Q(f)(3)(B) Election, earlier, and instructions for attaching Schedule E (Form 8933) for each utilization facility.

Line 3g. The displacement factor (DF) is limited to the range between zero (0.00) and one (1.00) rounded to the nearest one hundredth.

Line 3i. Enter the applicable inflation adjusted credit rate or applicable dollar amount. See 2025 inflation adjusted credit rates and applicable dollar amounts , earlier.

Line 3j. Multiply the DF adjusted number of metric tons of captured and utilized carbon oxide by the applicable inflation adjusted credit rate or applicable dollar amount.

Instructions for Form 8933 (Rev. 12-2025) 11

Line 3k. See Increased Credit Amount for Facilities and Equipment , earlier.

Lines 5a–5d The amounts for any tax year will be determined as of the close of the tax year. The credit reduced for tax-exempt bonds, as described earlier, reflects IRA 2022 amendments applicable to facilities, whose construction began after August 16, 2022.

Line 7e Subtract line 7d from the total credit reported to you on Schedule E (Form 8933), Part II, line 6; enter the amount on line 7e.

Attach Schedule A (Form 8933), Schedule E (Form 8933), and Schedule F (Form 8933).

TIP: Complete Schedule E (Form 8933) if you elect under section 45Q(f)(3)(B) to allow another person to claim your credit. See Schedule E, Election Certification, later.

Line 8 On a separate Form 8933 enter your distributive share of the carbon oxide sequestration credit from partnerships, S corporations, estates, and trusts, from:

• Schedule K-1 (Form 1065), Partner’s Share of Income, Deductions, Credits, etc., box 15 (code AW); and

• Schedule K-1 (Form 1120-S), Shareholder’s Share of Income, Deductions, Credits, etc., box 13 (code AW).

Enter this amount on line 8.

If your only carbon oxide sequestration credit is a credit which was allocated to you, do not report the credit on Form 8933. Instead, report the credit directly on Form 3800, Part III, line 1x. But see the Caution next.

Caution: If you receive a Schedule K-1 (Form 1065), box 15, code BC, or a Schedule K-1 (Form 1120–S), box 13, code BC, see Transferees of Eligible Credits Under Section 6418 in the Instructions for Form 3800.

Line 9 If you’re a partnership or an S corporation electing payment or transfer for the credit for a facility or equipment, you must report the total credit amount for your facility or equipment on Form 3800, Part III, line 1x. Don’t report the total credit amount on Schedule K.

Line 10 Enter the credit recaptured. Attach Schedule D (Form 8933) to Form 8933. Report the credit recapture amount in Form 4255, Part I, line 2a, column (h).