SECTION 2. BACKGROUND
Internal Revenue Bulletin 2013-23 · 2026-10-03 edition · updated 2026-10-04 · United States
Section 45Q(a)(1) allows a credit of $20 per metric ton of qualified CO 2 that is captured by the taxpayer at a qualified facility, disposed of by the taxpayer in secure geological storage, and not used by the taxpayer as a tertiary injectant. Section 45Q(a)(2) allows a credit of $10 per metric ton of qualified CO 2 that is captured by the taxpayer at a qualified facility, used by the taxpayer as a tertiary injectant in a qualified enhanced oil or natural gas recovery project, and disposed of by the taxpayer in secure geological storage.
Section 45Q(b)(1) defines the term “qualified carbon dioxide” as CO cap2 tured from an industrial source that would otherwise be released into the atmosphere as industrial emission of greenhouse gas, and that is measured at the source of capture and verified at the point of disposal or injection. Qualified CO includes the 2 initial deposit of captured CO as a 2 used tertiary injectant but does not include CO 2 that is re-captured, recycled, or otherwise re-injected as part of the enhanced oil and natural gas recovery process.
Section 45Q(c) defines the term “qualified facility” as an industrial facility that is owned by the taxpayer, where carbon capture equipment is placed in service, and where at least 500,000 metric tons of CO 2 is captured during the taxable year.
Section 45Q(d)(2) provides that the Secretary, in consultation with the Administrator of the Environmental Protection Agency (EPA), the Secretary of Energy, and the Secretary of the Interior, shall establish regulations for determining adequate security measures for the geological storage of CO under § 45Q(a)(1)(B) or 2 (a)(2)(C) such that the CO does not es2 cape into the atmosphere. See section 5 of Notice 2009–83, 2009–44 I.R.B. 588, for procedures regarding secure geological storage.
Section 45Q(d)(5) allows the § 45Q credit to the person that captures and physically or contractually ensures the disposal of or the use as a tertiary injectant of the qualified CO . 2
Under § 45Q(d)(7), for taxable years beginning in a calendar year after 2009, the dollar amount contained in § 45Q(a) must be adjusted for inflation by multiplying such dollar amount by the inflation adjustment factor for such calendar year determined under § 43(b)(3)(B), determined by substituting “2008” for “1990.”
Section 43(b)(3)(B) defines the term “inflation adjustment factor” as, with respect to any calendar year, a fraction the numerator of which is the GNP implicit price deflator for the preceding calendar year and the denominator of which is the GNP implicit price deflator for 1990. For purposes of § 45Q(d)(7), with respect to 2013 calendar year, the inflation adjustment factor is a fraction the numerator of which is the GNP implicit price deflator for 2012 (115.387) and the denominator of which is the GNP implicit price deflator for 2008 (108.589).
Section 45Q(e) provides that the § 45Q credit will apply with respect to qualified
CO 2 before the end of the calendar year in which the Secretary, in consultation with the EPA, certifies that 75,000,000 metric tons of qualified CO 2 have been taken into account in accordance with § 45Q(a).
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