Section 48C (Qualifying Advanced Energy Project Credit): Section 48C is a federal investment tax credit designed to support advanced energy projects, especially clean energy manufacturing, industrial decarbonization, and critical materials processing. Unlike many credits, §48C is not “automatic”: taxpayers generally must apply through a competitive allocation program and receive an allocation/certification before claiming the credit. This page explains what §48C is, what projects can qualify (high level), how the allocation process works, how the credit amount is generally determined, and how §48C connects to transferability under IRC §6418.

In short (60 seconds)

  • What it is: An investment tax credit for “qualifying advanced energy projects” that receive an IRS allocation/certification.
  • Not automatic: You generally must apply through the DOE/IRS allocation program; credits are limited and awarded competitively.
  • Credit rate concept: IRS guidance describes a 30% credit rate for projects meeting prevailing wage and apprenticeship (PWA) requirements, and 6% if they do not (high level).
  • What qualifies: IRS guidance highlights three main categories: (1) clean energy manufacturing/recycling, (2) greenhouse-gas reduction at industrial facilities, and (3) critical materials processing/refining/recycling.
  • Key timing rule: IRS FAQs state eligible property generally must be placed in service after receiving the allocation award (costs may be incurred earlier).
  • How to claim: Claimed on Form 3468, Part III (Section 48C) (and then applied through general business credit rules as relevant).
  • Transferability: IRS transferability guidance lists 48C as eligible for §6418 transferability (subject to rules and registration requirements).

Related pages

  • Eligible Credits — directory of credits eligible for §6418 transferability (includes §48C).
  • How It Works — transfer workflow, cash rule, timing (high level).
  • Registration Filing — IRS pre-filing registration and registration numbers for transfers (high level).
  • Risk Compliance — diligence, excessive transfer concept, and risk basics.
  • Section 45X — advanced manufacturing production credit (different credit; not an allocation program).
  • Section 48 — energy investment credit (ITC; different framework).
  • Glossary — definitions and FAQs.

1) What is the Section 48C credit?

Section 48C is an investment credit that supports advanced energy projects. The statute describes the credit as a percentage of a taxpayer’s “qualified investment” in eligible property that is part of a “qualifying advanced energy project,” subject to an overall limitation tied to the amount allocated/designated for the project. IRS guidance emphasizes that taxpayers generally apply through the Department of Energy (DOE) and that credits are allocated through a program with limited funding.

Plain-English takeaway

§48C is best thought of as a competitive “credit allocation program” for qualifying industrial and manufacturing investments. The allocation is a prerequisite for claiming the credit.

2) What projects can qualify? (high level categories)

IRS guidance for the Advanced Energy Project Credit describes qualifying project types that generally fall into three categories. Exact definitions are technical, but the categories below reflect the program framing.

Common qualifying project categories (program framing)

  1. Clean energy manufacturing and recycling: re-equip, expand, or establish an industrial/manufacturing facility to produce or recycle specified advanced energy property.
  2. Industrial greenhouse gas reduction: install or integrate technology in an industrial/manufacturing facility to reduce greenhouse gas emissions by at least 20% (high level).
  3. Critical materials: re-equip, expand, or establish an industrial facility to process, refine, or recycle critical materials (high level).

IRS guidance also notes exclusions, including projects producing property for refining or blending non-renewable transportation fuels.

Why §48C is often compared with §45X

§48C is allocation-based and tied to “qualified investment” in eligible property, while §45X is a production credit tied to eligible components produced and sold. Some businesses evaluate both credits during planning, but they operate under different legal and administrative frameworks.

3) Credit percentage: 30% vs 6% (PWA concept)

IRS guidance states that the credit equals 30% of qualified investment costs for projects that meet prevailing wage and apprenticeship requirements, and 6% for projects that do not (high level). Because the “increased credit amount” is documentation-heavy, project teams commonly treat PWA compliance as a core design and contracting requirement rather than an afterthought.

Practical note

If you claim the higher (increased) amount, keep a strong compliance file (contracts, payroll records, apprenticeship evidence, and any required forms for the tax year). Verify current-year reporting requirements in the latest official IRS instructions for Form 3468 and related guidance.

4) How the allocation program works (DOE + IRS)

IRS guidance explains that manufacturers and other entities generally apply for the §48C credit through DOE, and that a total program amount was allocated under the IRA with a set-aside for certain energy communities (high level). DOE explains that the IRA provided $10 billion in funding for the expanded 48C(e) allocation program and notes two rounds of allocations have occurred (round timing and totals are program history details).

Portal and process note

IRS program guidance describes the application process and notes that the portal system has changed over time (for example, migration to the DOE 48C Portal and identity verification tools). Applicants should use the current DOE/IRS program links for the active round’s instructions and timelines.

One application per facility (high level)

IRS FAQs indicate an applicant must submit a separate application for each “48C Facility” (the eligible property that makes up the qualified investment that is part of the project). In plain English: do not bundle multiple distinct facilities into a single application unless the program rules explicitly allow it.

5) Timing rules that matter (placed-in-service rule)

The most important timing rule for many applicants is: the eligible property generally must be placed in service after the allocation award date. IRS FAQs state that costs can be incurred before the award date as long as the eligible property is not placed in service before receiving the allocation and other program requirements are satisfied (high level).

Plain-English checklist (timing)

  • You may incur costs before allocation (project development often begins early).
  • You generally must not place eligible property in service before the allocation award.
  • Maintain clear records of dates: application milestones, allocation award date, construction timeline, and placed-in-service date.

6) How to claim §48C (Form 3468, Part III)

IRS instructions for Form 3468 identify Part III as the “Qualifying Advanced Energy Project Credit under Section 48C.” In practice, claim packages typically include: the allocation/certification evidence, eligible property/basis support, placed‑in‑service support, and any compliance support needed for the increased credit amount (high level).

Common filing workflow (high level)

  1. Allocation award: receive IRS allocation/certification under the program rules.
  2. Build and place in service: place eligible property in service after award, with basis documentation.
  3. Compute the credit: complete Form 3468, Part III (48C) and include required attachments.
  4. Apply credit rules: aggregate/apply on the appropriate return forms (often via general business credit framework, depending on taxpayer type).

7) §48C and transferability under §6418 (high level)

IRS transferability FAQs list §48C among eligible credits that an eligible taxpayer may elect to transfer under §6418. If a §48C credit is transferred, expect transaction diligence to focus on allocation/certification validity, eligible basis, placed-in-service timing, PWA compliance (if applicable), and proper registration/election mechanics (high level).

Transferability checklist for §48C (high level)

  • Allocation evidence: keep the IRS allocation/certification documentation and confirm the allocated limitation amount.
  • Placed-in-service proof: ensure eligible property is placed in service after award date (a core rule per IRS FAQs).
  • Basis support: invoices, cost substantiation, and eligible property mapping.
  • PWA support: if claiming increased rate, maintain wage/apprenticeship compliance evidence.
  • Pre-filing registration: if transferring, follow IRS pre-filing registration steps (see /p/registration-filing.htmlRegistration Filing).
  • Risk awareness: treat diligence as essential; see /p/risk-compliance.htmlRisk Compliance.

FAQs (Section 48C)

1) Is §48C automatic like some other credits?

No. §48C generally requires an application and an allocation/certification through the program process.

2) What is the basic credit rate idea?

IRS guidance describes 30% for projects meeting prevailing wage and apprenticeship requirements and 6% for those that do not (high level).

3) Can I place the property in service before I receive the allocation award?

IRS FAQs state eligible property placed in service prior to being awarded an allocation is not eligible to receive such an allocation (high level).

4) Can costs be incurred before receiving the award?

IRS FAQs indicate yes, as long as the eligible property is not placed in service before the award and other program requirements are met (high level).

5) What form is used to claim §48C?

IRS instructions identify Form 3468, Part III as the section for §48C.

6) Can §48C be transferred under §6418?

Yes. IRS transferability FAQs list §48C among eligible credits that may be transferred under §6418, subject to rules.

7) Is this page tax or legal advice?

No. This site provides general informational and educational content only. See /p/disclaimer.htmlDisclaimer.

Official sources (clickable)

This page is educational. For official definitions, year-specific program rules, and filing requirements, consult the sources below.

Last updated: February 2026

Note: Educational content only — not tax or legal advice. See Disclaimer.