IRC §45Q · production credit
Section 45Q: selling the Carbon Oxide Sequestration Credit
A per-ton credit for capturing carbon oxide and storing or using it, earned for 12 years and sold one facility and one year at a time.
Verified · IRS Form 8933, Carbon Oxide Sequestration Credit
At a glance · §45Q
- What it rewards
- Each metric ton of qualified carbon oxide captured with carbon capture equipment and stored in secure geological storage or used in a qualified way.
- Type
- Production credit (PTC): earned per unit produced or sold
- Rate
- $17 per ton base ($85 with prevailing wage and apprenticeship); $36 per ton ($180) for direct air capture; inflation-adjusted after 2026. For equipment placed in service after 4 July 2025, utilization earns the same amount as storage.
- Credit period
- 12 years from the date the carbon capture equipment is placed in service. A transfer election is made separately for each facility and each year.
- Claimed on
- Form 8933, carried to Form 3800
- Transferable?
- Yes, under §6418. Not to a specified foreign entity (tax years beginning after 4 July 2025).
- Status
- Open Construction must begin before 1 January 2033. No credit for tax years beginning after 4 July 2025 if the taxpayer is a specified foreign entity or a foreign-influenced entity.
- Key dates
- : No transfers of these credits to a specified foreign entity
- : §45Q: construction must begin before 1 January 2033
- Last verified
Who earns it and how it is measured
The credit is earned on each metric ton of qualified carbon oxide captured with carbon capture equipment at a qualified facility and then stored in secure geological storage or used in a qualified way[1]. It runs for 12 years from the date the carbon capture equipment is placed in service[1].
The base amount is $17 per ton, or $36 for direct air capture; five times those amounts ($85 and $180) where the prevailing wage and apprenticeship requirements are met. The amounts are adjusted for inflation for tax years beginning after 2026[1].
A facility must begin construction before 1 January 2033, together with its carbon capture equipment or with capture built into its original design[1].
What changed in 2025
- Parity for utilization. For facilities or equipment placed in service after 4 July 2025, carbon oxide that is used (including in enhanced oil or gas recovery) earns the same amount as carbon oxide in geological storage[1].
- Foreign entities. For tax years beginning after 4 July 2025, no credit if the taxpayer is a specified foreign entity or a foreign-influenced entity[1], and the credit cannot be transferred to a specified foreign entity[2].
Selling it
§45Q is sold separately for each facility and each tax year of the 12-year period[2].
- Register each facility and renew the registration for each year you sell[3], at least 120 days before the return’s due date[4].
- Claim on Form 8933[5] and report the transfer on Form 3800, Part III, column (f)[6].
- Attach the transfer election statement to an original, timely return[7].
What buyers ask for on a §45Q deal: capture and injection or utilization measurements; the storage monitoring basis; the construction-start evidence; prevailing wage and apprenticeship records if the higher amount is claimed; and the contract terms for §45Q recapture, which applies if stored carbon oxide later escapes. The regulations treat a §45Q recapture event as separate from an excessive credit transfer[8], so the purchase agreement has to say who bears it.
Frequently asked questions
Does §45Q now treat all utilization pathways the same?
For facilities or equipment placed in service after 4 July 2025, the statute sets one amount for storage and qualified utilization[1]. Earlier equipment keeps the amounts that applied when it was placed in service.
Which form is used for §45Q?
Form 8933, Carbon Oxide Sequestration Credit[5].
Market price
No credit-specific price is published for §45Q; across the market, most transferable credits sold for 80 to 96 cents per dollar in 2026; large, insured, investment-grade deals near the top and small uninsured deals near the bottom.[Cenet Capital]
Market estimate, not an offer. Prices move with buyer demand, deal size, seller credit quality, insurance and foreign-entity exposure. Run your own figures in the Credit Value Estimator, or compare every published report on the prices page.
Deadlines for §45Q
- No transfers of these credits to a specified foreign entityFor tax years beginning after 4 July 2025, credits under §§45Q, 45U, 45X, 45Y, 45Z and 48E may not be transferred to a specified foreign entity.
- §45Q: construction must begin before 1 January 2033A capture facility must begin construction (of the facility and its capture equipment, or with capture designed in) before 1 January 2033.
Sources
- 26 U.S.C. § 45Q — Credit for carbon oxide sequestration
- 26 U.S.C. § 6418 — Transfer of certain credits
- 26 CFR § 1.6418-4 — Additional information and registration
- Register for elective payment or transfer of credits (page updated 12 Aug 2026)
- About Form 8933, Carbon Oxide Sequestration Credit
- Instructions for Form 3800 (2025)
- 26 CFR § 1.6418-2 — Rules for making transfer elections
- 26 CFR § 1.6418-5 — Special rules (excessive credit transfer, recapture)
- Tax credit price calculator: what is your credit worth in cash? (7 Oct 2026)
- 26 U.S.C. § 7701(a)(51)–(52) — Prohibited foreign entity; material assistance