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Official IRS and Treasury Resources for Transferable Tax Credit Buyers
Quick answer
This page is a curated directory of official IRS and Treasury sources—and a few unofficial U.S. Code readers—that buyers, CPAs and counsel typically use when a transferable credit, especially a §48E credit, is purchased under §6418. Links were checked on November 13, 2026. It is a reading list, not tax advice, and it does not determine eligibility, pricing or a filing position. Confirm the current text with your advisors. For how a purchase proceeds, see the close-process walkthrough; for a circulating C-corp file, see the tax-team guide.
A short, annotated list of official Internal Revenue Service and Treasury sources that buyers, CPAs and counsel typically keep at hand when a transferable credit—especially a §48E clean electricity investment credit—is purchased under IRC §6418. This page is a directory, not a restatement of the law. Confirm the current text with your advisors before you rely on it.
On this page
For Veritas explainers that walk through these sources in plain language, start with the §6418 transferability guide, how a §48E purchase closes, the Form 3800 and transfer election statement guide, and the C corporation tax team guide (PDF).
§6418 transferability statute and regulations
| Resource | What a buyer or CPA uses it for |
|---|---|
| 26 U.S.C. §6418, Transfer of certain credits (Cornell LII) | The statute: who may transfer an eligible credit, the cash-only rule, the one-transfer limit, the election, and transferee treatment. Unofficial edition; confirm against the official Code text your counsel uses. |
| Treasury Decision 9993, final §6418 transfer regulations (Federal Register, April 30, 2024) | The official final regulations on making a transfer election. Use this (or the eCFR compilation below) for the rules as published by Treasury and the IRS. |
| 26 CFR §1.6418-1, Definitions (eCFR) | Defined terms, including that consideration must be paid in cash. |
| 26 CFR §1.6418-2, Rules for making transfer elections (eCFR) | How the election is made, what the transfer election statement must contain, and special rules that apply to transferee taxpayers—including, for individuals, the passive activity rules. |
| 26 CFR §1.6418-3, Partnerships and S corporations (eCFR) | How transfers work when the eligible taxpayer or the buyer is a pass-through. |
| 26 CFR §1.6418-4, Pre-filing registration (eCFR) | The requirement to obtain an IRS registration number before a transfer election is effective. |
| 26 CFR §1.6418-5, Special rules (eCFR) | Excessive credit transfers and recapture notification rules that affect transferee taxpayers. |
| IRS: Elective pay and transferability | The IRS overview of elective pay (§6417) and transfers (§6418), and a starting point for the FAQ sets below. |
| IRS: Elective pay and transferability FAQs, Transferability (Q4–Q15) | Plain IRS answers on who may buy, cash consideration, estimated tax (including Q12), and the application of §469 to transferees (Q15). Read this before assuming a purchased credit can offset wage or portfolio tax. |
| IRS: Elective pay and transferability FAQ index | The index of IRS FAQ pages (pre-filing registration, elective pay, transferability and related topics). |
§48E clean electricity investment credit guidance
| Resource | What a buyer or CPA uses it for |
|---|---|
| IRS: Clean Electricity Investment Credit (§48E) | The IRS summary of the credit, rates, bonuses, and high-level eligibility for facilities and energy storage technology. Start here, then confirm the statute and regulations. |
| 26 U.S.C. §48E, Clean electricity investment credit (Cornell LII) | The statute for the technology-neutral investment credit, including prevailing-wage, bonus and placed-in-service rules. Unofficial edition. |
| Federal Register: final §45Y and §48E regulations (January 15, 2025) | The official final technology-neutral credit regulations. |
| Internal Revenue Bulletin 2025-12 (T.D. 10024) | The IRS Bulletin compilation of the final §45Y/§48E regulations. |
| 26 CFR §1.48E-1 (eCFR) | Current compiled regulation text on energy property and related §48E rules. Counsel should also review the adjoining §48E regulation sections as needed. |
| Treasury press release on the final §45Y and §48E rules | A Treasury summary of the final technology-neutral credit package; not a substitute for the regulations. |
| 26 U.S.C. §38, General business credit (Cornell LII) | How a purchased credit is claimed as a general business credit, and the §38(c) annual limit. See also our §38(c) explainer. |
| 26 U.S.C. §50, Other special rules (Cornell LII) | Investment-credit recapture, including the five-year window that generally applies to a §48E credit. |
Pre-filing registration
| Resource | What a buyer or CPA uses it for |
|---|---|
| IRS: Register for elective payment or transfer of credits | How an authorized representative creates or signs in to a clean energy account and requests a registration number for each credit property. The seller generally does this; the buyer should still receive and use the number. |
| IRS: Energy Credits Online | The IRS portal page for clean energy accounts, including pre-filing registration for transfers. |
| IRS FAQs: Pre-filing registration | IRS answers on timing, what to submit, and how registration numbers are used on the return. |
| IRS Publication 5884, Pre-Filing Registration User Guide (PDF) | The IRS user guide for the registration tool (the copy we opened was revised July 2026). Useful when the seller or a reviewer needs step-by-step portal instructions. |
Forms and instructions
| Resource | What a buyer or CPA uses it for |
|---|---|
| IRS: About Form 3800, General Business Credit · Instructions for Form 3800 (and Schedule A) | How the seller and the buyer report a §6418 transfer on Form 3800, including column (f), the registration number, and the transfer election statement. Confirm you are using the instructions for the year you file. Our walkthrough: Form 3800 and the transfer election statement. |
| IRS: About Form 3468, Investment Credit · Instructions for Form 3468 | The investment-credit form a project owner generally uses to compute a §48E (and other investment) credit before a transfer. Buyers use it as support in the diligence file, not as a substitute for Form 3800 reporting of a purchased credit. |
| IRS: About Form 8582-CR · Instructions for Form 8582-CR | The form individuals, estates and trusts use to apply the passive activity credit limitation before a purchased credit flows to Form 3800. Walkthrough: Form 8582-CR and Form 8810 for credit buyers. |
| IRS: About Form 8810 · Instructions for Form 8810 | The corporate counterpart of the passive activity limitation, used by closely held and personal service C corporations. |
| IRS: About Form 2210 · Instructions for Form 2210 | Underpayment of estimated tax by individuals, estates and trusts—including how a purchased credit can figure into the calculation. See Form 2210 and estimated tax. |
| IRS: About Form 2220 · Instructions for Form 2220 | The corporate estimated-tax underpayment form. C-corp buyers also use our estimated-tax guide and IRC §6655. |
Passive activity and at-risk rules
| Resource | What a buyer or CPA uses it for |
|---|---|
| IRS Publication 925, Passive Activity and At-Risk Rules | The IRS publication that explains §469 and the at-risk rules in narrative form, including rental activities, portfolio income and material participation. Essential reading for individual and closely held buyers. |
| IRS Topic No. 425, Passive activities: losses and credits | A short IRS overview of the same rules. |
| 26 U.S.C. §469 (Cornell LII) | The statute that limits passive activity losses and credits. Unofficial edition. See §469 and transferable credits. |
Notices and recent legislation
| Resource | What a buyer or CPA uses it for |
|---|---|
| Public Law 119-21 (One Big Beautiful Bill Act), enrolled PDF on GovInfo · GovInfo details page | The 2025 legislation that kept §6418 transferability, shortened certain wind and solar runways, and added prohibited-foreign-entity rules. Our summary: OBBBA clean energy credit changes. |
| IRS Notice 2026-15 (PDF) · IR-2026-23 news release · IRS restrictions page | Interim PFE / material-assistance guidance for certain energy credits, including §48E. Buyers use it (with counsel) when reviewing a seller’s foreign-entity file. See FEOC / PFE risk for buyers. |
| IRS Notice 2025-08 (PDF) | Domestic-content safe-harbor tables that Notice 2026-15 permits taxpayers to use in specified cases until the PFE-specific tables are issued. |
| IRS Notice 2025-42 (PDF) | Beginning-of-construction guidance for §§45Y and 48E, which matters for wind and solar deadline diligence. See solar and wind deadlines for buyers. |
| IRS Notice 2023-29 (PDF) | Energy community bonus credit guidance. Use it when a seller claims that bonus; later notices and maps may also apply. |
| IRS Notice 2023-38 (PDF) | Domestic content bonus credit guidance. Use it when a seller claims that bonus, and distinguish it from the later PFE material-assistance rules. |
| 26 U.S.C. §7701 (Cornell LII) | Includes the statutory definitions and thresholds for a prohibited foreign entity and material assistance (§7701(a)(51)–(52)). Unofficial edition. |
| 26 U.S.C. §6654 (Cornell LII) and §6655 (Cornell LII) | Estimated-tax rules for individuals and for corporations. |
Educational information only, not tax, legal or investment advice, and no outcome is promised. This page lists official and unofficial primary sources; it does not replace the forms, instructions, statutes or regulations, and it does not determine eligibility, pricing or a filing position. Links and status notes were checked on November 13, 2026; they change, so confirm with your CPA and counsel before acting. Veritas does not offer or solicit investments and does not guarantee a discount, savings, close timing or eligibility. See our disclaimer.
Frequently asked questions
Are these official IRS pages, or Veritas summaries?
The linked statutes, regulations, forms, publications and notices are IRS, Treasury, Federal Register, eCFR or GovInfo documents, except where a note says a U.S. Code citation is an unofficial Cornell LII edition. The one-line annotations and the Notice 2026-15 status note are ours. Read the official text, and confirm it with your CPA and counsel, before you rely on it.
Which sources should a §48E buyer start with?
Start with the IRS Clean Electricity Investment Credit page and the IRS transferability FAQs (including Q15 on passive activity rules), then Treas. Reg. §§1.6418-2 and 1.6418-4, the Instructions for Form 3800, and, if you are an individual or a closely held corporation, Publication 925 and the Form 8582-CR or Form 8810 instructions. Notice 2026-15 matters when foreign-entity diligence applies. Our close-process walkthrough shows where those documents come up in a purchase.
Has Treasury issued the Notice 2026-15 PFE safe-harbor tables?
As of our November 13, 2026 review, Notice 2026-15 remains interim guidance, and we have not seen the PFE-specific safe-harbor tables that the Code directs the Secretary to issue no later than December 31, 2026. Until those tables are issued, and for some construction that begins shortly after they are issued, the notice describes interim safe harbors, including specified use of Notice 2025-08 tables. Recheck IRS releases before you close. This is a status note, not a project-level determination.
Why do you link to Cornell LII instead of uscode.house.gov?
On November 13, 2026, the Office of the Law Revision Counsel views we tested for §6418 and §48E at uscode.house.gov returned HTTP 404. Cornell LII is an unofficial edition. Counsel should confirm against the official Code text they use. Regulations are linked to the Federal Register and to eCFR, which are official.
Is this page tax advice, and how often is the list reviewed?
No. It is general education and a bookmark list. We record the date the links were checked and intend to review the list when we refresh related buyer guides, especially if a new PFE table or form revision is issued. URLs and rules change; always open the current official file.
Where should I go after I have the official documents?
If you want the purchase sequence, read how a §48E credit purchase closes. C corporation tax teams can download the packaged guide. Individuals with passive income should also read the Form 8582-CR walkthrough. Confirm every step with your CPA and counsel. Veritas does not guarantee eligibility, pricing or a close date.
- 26 U.S.C. §6418, Transfer of certain credits (Cornell LII)
- Treasury Decision 9993, final §6418 transfer regulations (Federal Register, April 30, 2024)
- 26 CFR §1.6418-1, Definitions (eCFR)
- 26 CFR §1.6418-2, Rules for making transfer elections (eCFR)
- 26 CFR §1.6418-4, Pre-filing registration (eCFR)
- 26 CFR §1.6418-5, Special rules (eCFR)
- IRS: Elective pay and transferability FAQs, Transferability
- IRS: Clean Electricity Investment Credit (§48E)
- 26 U.S.C. §48E, Clean electricity investment credit (Cornell LII)
- Federal Register: final §45Y and §48E regulations (January 15, 2025)
- IRS: Register for elective payment or transfer of credits
- IRS Publication 5884, Pre-Filing Registration User Guide
- IRS: Instructions for Form 3800 and Schedule A
- IRS: Instructions for Form 8582-CR
- IRS: Instructions for Form 8810
- IRS: Instructions for Form 2210
- IRS: Instructions for Form 2220
- IRS Publication 925, Passive Activity and At-Risk Rules
- Public Law 119-21 enrolled PDF (GovInfo)
- IRS Notice 2026-15 (PDF)
- IRS IR-2026-23, Notice 2026-15 news release (February 12, 2026)
- IRS Notice 2025-08 (PDF)
- IRS Notice 2025-42 (PDF)
- 26 U.S.C. §38, General business credit (Cornell LII)
- 26 U.S.C. §50, Other special rules (Cornell LII)
- 26 U.S.C. §469 (Cornell LII)
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