Significant Holder Reporting: 5% Shareholder Statements and Filing

If you were a significant holder in a corporation that went through a tax-free reorganization, Treasury Regulation 1.368-3(b) requires you to attach a written disclosure statement to your federal income tax return for the year of the exchange. Significant holder reporting is not done on a standard IRS form. You draft the statement yourself, give it a specific title the regulation prescribes, and include enough detail for the IRS to verify the reorganization’s tax treatment and your basis in the shares you received.

Who Counts as a Significant Holder

The threshold depends on whether the target corporation’s stock is publicly traded. For publicly traded stock, you qualify if you owned at least five percent of the target’s total outstanding stock, measured by vote or value, immediately before the exchange. For stock that is not publicly traded, the threshold drops to one percent by vote or value.¹ “Publicly traded” means listed on a national securities exchange registered under the Securities Exchange Act of 1934, or quoted on an interdealer quotation system sponsored by a registered national securities association such as Nasdaq.²

A separate trigger catches large debt positions. If you held corporate securities (bonds or notes rather than stock) with an aggregate basis of $1,000,000 or more immediately before the exchange, you are a significant holder regardless of what percentage of the company that represents.¹

Both tests look at what you held immediately before the exchange. Shares purchased during reorganization negotiations but before closing count toward your total. The regulation does not cross-reference the constructive ownership rules of Section 318, so stock held by family members, trusts, or partnerships is not automatically attributed to you for this test.³ If you are close to a threshold, confirm with a tax advisor whether other operative provisions in the deal pull attribution in through a different route.

Which Reorganizations Trigger Reporting

The obligation applies to any exchange qualifying under Section 354, or the part of Section 356 that relates to Section 354.¹ Section 354 permits shareholders to exchange stock in one corporation for stock in another without recognizing gain or loss, provided the exchange happens as part of a reorganization defined in Section 368.⁴ That covers every reorganization type Section 368 defines: statutory mergers (Type A), stock-for-stock acquisitions (Type B), stock-for-assets acquisitions (Type C), transfers to a controlled corporation followed by a Section 354, 355, or 356 distribution (Type D), recapitalizations (Type E), changes in identity, form, or place of organization (Type F), and certain bankruptcy transfers (Type G).⁵

Receiving boot alongside qualifying stock does not remove the reporting duty. You recognize gain to the extent of the boot under Section 356, and the exchange still gets reported.

What Goes in the Statement

The regulation specifies the contents. Your statement must identify every corporation that is a party to the reorganization by legal name and Employer Identification Number, state the date of the exchange, and give the fair market value of all stock or securities of the target you transferred, along with your basis in that stock or securities, each measured immediately before the exchange.²

The document must carry a prescribed title: “STATEMENT PURSUANT TO §1.368–3(b) BY [YOUR NAME AND TAXPAYER IDENTIFICATION NUMBER], A SIGNIFICANT HOLDER.” That heading is the format the regulation calls for and signals to examiners that the document is the disclosure required by the significant holder rule.²

Getting the Basis Number Right

If you acquired your shares in a single purchase, basis is what you paid plus transaction costs like commissions. For multiple lots purchased at different times and prices, you use the basis of the specific shares you can identify as surrendered. If you cannot adequately identify them, the IRS treats you as having surrendered the shares you acquired first.⁶

That figure carries forward into the shares you receive. In a fully tax-free exchange, your basis in the new stock equals your basis in the old. When boot is involved, the calculation adjusts for any gain recognized and any cash or other property received. An error here ripples into every later transaction in those shares.

Boot and Assumed Liabilities

If you received cash, other property, or had liabilities assumed by another party, capture the fair market value of each component in your records. The regulation requires permanent records covering the amount, basis, and fair market value of all transferred property and the relevant facts about any liabilities assumed or extinguished.² Boot is taxable up to your realized gain, so documenting these amounts matters for the disclosure and for the gain you report.

How to File

Attach the statement to your federal income tax return for the year the reorganization closed. Individuals attach it to Form 1040. Corporate significant holders (other than a corporation that is itself a party to the reorganization) attach it to Form 1120.² Electronic filers usually upload it as a PDF through their tax software. Paper filers staple it to the return.

The person filing the return, or an authorized agent, must sign the statement. For a corporate entity, a duly authorized officer signs.² If you discover after filing that you missed the statement or made errors, the standard fix is a corrected statement attached to an amended return, though doing so after the IRS has already opened an inquiry weakens your position.

Records to Keep

Because the exchange carries your old basis into the new shares, the IRS expects you to retain records on both the old and new property until the statute of limitations runs for the year you eventually dispose of the new shares.⁷ That means holding onto the original purchase records, the reorganization documents, corporate resolutions, and any appraisals for as long as you own the replacement stock plus the applicable limitations period after you sell.

The standard limitations period is three years from the date you file the return reporting the sale. It extends to six years if you underreport gross income by more than 25 percent, and to seven years if you claim a loss from worthless securities.⁷ If no return is filed, or a fraudulent one is filed, there is no expiration. Given how far in the future an audit can arrive, keeping these records indefinitely is the safer default.

What Happens If You Skip It

The regulation does not prescribe a specific penalty for failing to file the statement. There is no fine schedule tied to this disclosure. The exposure is indirect. Without the filing and the records behind it, you lose the ability to prove your claimed basis when the IRS eventually looks at a sale of the replacement shares. An unsupported basis lets the IRS assert a higher gain, which produces additional tax plus interest. If the misstatement is large enough, accuracy-related penalties apply: 20 percent of the underpayment for a substantial valuation misstatement, and 40 percent for a gross misstatement where the claimed basis exceeds four times the correct amount. Skipping a filing with no direct penalty can create exposure that dwarfs any penalty the regulation might have imposed.

1
eCFR. 26 CFR 1.368-3 – Records to Be Kept and Information to Be Filed with Returns
2
GovInfo. 26 CFR 1.368-3 – Records to Be Kept and Information to Be Filed with Returns
3
Office of the Law Revision Counsel. 26 US Code 318 – Constructive Ownership of Stock
4
Internal Revenue Service. Revenue Ruling 2004-78 – Section 354 Exchange of Stock and Securities
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Office of the Law Revision Counsel. 26 US Code 368 – Definitions Relating to Corporate Reorganizations
6
Internal Revenue Service. Publication 551 – Basis of Assets
7
Internal Revenue Service. How Long Should I Keep Records