Title 26, Internal Revenue CodeRelease 119-110

§179B Deduction for Capital Costs Incurred in Complying with Environmental Protection Agency Sulfur Regulations

Title 26 › Subtitle A — Income Taxes › CHAPTER 1 — NORMAL TAXES AND SURTAXES › Subchapter B — Computation of Taxable Income › PART VI — ITEMIZED DEDUCTIONS FOR INDIVIDUALS AND CORPORATIONS › § 179B

Last updated Sep 22, 2026|Official source

Summary

Small refiners can choose to deduct 75% of certain capital costs they pay or incur in a tax year, as long as those costs are recorded as capital expenses and meet the law’s definition of “qualified costs.” If a refiner’s average daily runs for the year ending December 31, 2002, were more than 155,000 barrels, the 75% figure is cut down by multiplying 75% by the amount over 155,000 divided by 50,000, but it can’t go below zero. The tax basis of the property is lowered by the part of the cost that was deducted, and that deducted amount is treated like depreciation for recapture rules. The rule in section 280B does not apply to amounts treated as expenses under this rule. If the refiner and some owners are cooperatives under the tax rules for cooperatives, the refiner may elect to pass all or part of the deduction to those owners in proportion to their ownership. That election must be made on the timely filed return for the year and cannot be changed for that year. The cooperative must give each owner written notice of any allocation before the return is due.

Full Legal Text

Title 26, §179B

Internal Revenue Code, Source: USLM XML via OLRC

(a)Allowance of deduction
In the case of a small business refiner (as defined in section 45H(c)(1)) which elects the application of this section, there shall be allowed as a deduction an amount equal to 75 percent of qualified costs (as defined in section 45H(c)(2)) which are paid or incurred by the taxpayer during the taxable year and which are properly chargeable to capital account.
(b)Reduced percentage
In the case of a small business refiner with average daily domestic refinery runs for the 1-year period ending on December 31, 2002, in excess of 155,000 barrels, the number of percentage points described in subsection (a) shall be reduced (not below zero) by the product of such number (before the application of this subsection) and the ratio of such excess to 50,000 barrels.
(c)Basis reduction
(1)In general
For purposes of this title, the basis of any property shall be reduced by the portion of the cost of such property taken into account under subsection (a).
(2)Ordinary income recapture
For purposes of section 1245, the amount of the deduction allowable under subsection (a) with respect to any property which is of a character subject to the allowance for depreciation shall be treated as a deduction allowed for depreciation under section 167.
(d)Coordination with other provisions
section 280B shall not apply to amounts which are treated as expenses under this section.
(e)Election to allocate deduction to cooperative owner
(1)In general
If—
(A)a small business refiner to which subsection (a) applies is an organization to which part I of subchapter T applies, and
(B)one or more persons directly holding an ownership interest in the refiner are organizations to which part I of subchapter T apply,
the refiner may elect to allocate all or a portion of the deduction allowable under subsection (a) to such persons. Such allocation shall be equal to the person’s ratable share of the total amount allocated, determined on the basis of the person’s ownership interest in the taxpayer. The taxable income of the refiner shall not be reduced under section 1382 by reason of any amount to which the preceding sentence applies.
(2)Form and effect of election
An election under paragraph (1) for any taxable year shall be made on a timely filed return for such year. Such election, once made, shall be irrevocable for such taxable year.
(3)Written notice to owners
If any portion of the deduction available under subsection (a) is allocated to owners under paragraph (1), the cooperative shall provide any owner receiving an allocation written notice of the amount of the allocation. Such notice shall be provided before the date on which the return described in paragraph (2) is due.

Legislative History

Notes & Related Subsidiaries

Editorial Notes

Amendments

2007—Subsec. (a). Pub. L. 110–172 substituted “qualified costs” for “qualified capital costs” and inserted “and which are properly chargeable to capital account” before period at end. 2005—Subsec. (e). Pub. L. 109–58 added subsec. (e).

Statutory Notes and Related Subsidiaries

Effective Date

of 2007 AmendmentAmendment by Pub. L. 110–172 effective as if included in the provision of the American Jobs Creation Act of 2004, Pub. L. 108–357, to which such amendment relates, see section 7(e) of Pub. L. 110–172, set out as a note under section 1092 of this title.

Effective Date

of 2005 Amendment Pub. L. 109–58, title XIII, § 1324(b), Aug. 8, 2005, 119 Stat. 1015, provided that: “The amendment made by this section [amending this section] shall take effect as if included in the amendment made by section 338(a) of the American Jobs Creation Act of 2004 [Pub. L. 108–357, enacting this section].”

Effective Date

Pub. L. 108–357, title III, § 338(c), Oct. 22, 2004, 118 Stat. 1481, provided that: “The amendment made by this section [enacting this section and amending section 263, 263A, 312, 1016, and 1245 of this title] shall apply to expenses paid or incurred after December 31, 2002, in taxable years ending after such date.”

Reference

Citations & Metadata

Citation

26 U.S.C. § 179B

Title 26, Internal Revenue Code

Last Updated

Sep 22, 2026

Release point: 119-110