
What Form 1099-CAP (2021) Is For
The IRS Form 1099-CAP 2021 reports changes in corporate control and capital structure when a domestic corporation undergoes an acquisition, merger, or other substantial change. Corporations must file this form with the Internal Revenue Service and provide it to shareholders who receive cash, stock, or other property from a qualifying corporate action. It ensures that taxpayers correctly report capital gains or gain recognition on their federal income tax return when they receive proceeds from broker and barter exchange transactions or other distributions.
This form provides detailed information, including the aggregate amount received, the date of the transaction, and the fair market value of the stock or property exchanged. It applies when shareholders receive cash or other property valued at $1,000 or more, and the total transaction involves at least $100 million. Proper filing helps the IRS verify taxable income and confirm that the federal income tax withheld matches the information reported by the corporation.
When You’d Use Form 1099-CAP
Corporations use Form 1099-CAP to report transactions that result in changes in corporate control and capital structure. Shareholders use the form when filing their income tax return to report taxable income or capital gains received through these corporate actions. Typical filers include domestic corporations, regulated investment companies, real estate investment trusts, and financial institutions.
The filing deadlines for the 2021 tax year were January 31 for providing copies to shareholders, February 28 for paper forms, and March 31 for those who file electronically. Corporations could use Form 8809 to request an extension before the due date. Filers may submit forms through a service bureau or the IRS intake system, following the general instructions for certain information returns on the IRS website.
Key Rules or Details for 2021
The instructions for Form 1099-CAP specify which entities are required to file and identify exempt shareholders, including C corporations, investment companies, commodities dealers, and foreign central banks. Foreign individuals who provide Form W-8BEN are exempt recipients, though amounts withheld may still apply under Section 1441. Corporations must report the fair market value of property distributed, the account number, and the taxpayer identification number for each shareholder.
Corporations that elected to file Form 8806 instead of Form 1099-CAP for shares held by clearing organizations were required to let brokers handle reporting through Form 1099-B proceeds. Following these reporting requirements helps ensure that the Internal Revenue Service accurately tracks substantial changes in ownership and prevents common errors that can lead to penalties or the need for corrected forms.
For complete details on reporting, withholdings, and tax filings, see our guide for Information Returns & Reporting Forms.
Step-by-Step (High Level)
Understanding the filing process helps both corporations and shareholders report accurately.
Step 1: Corporate Action Occurs
A qualifying corporate action, such as an acquisition, merger, or substantial change in capital structure, triggers the reporting requirement.
Step 2: Determine Filing Obligation
The corporation determines whether the transaction meets filing thresholds and identifies all non-exempt shareholders.
Step 3: Prepare and File the Form
The corporation reports detailed information such as:
- The date of the transaction
- The aggregate amount each shareholder received
- The number and type of shares exchanged
- The fair market value of stock or property received
Corporations may file on paper or electronically using an approved service bureau or the IRS intake system for certain information returns.
Step 4: Shareholders Report Transactions
Shareholders use the form to report taxable income, capital gains, and other property on their federal income tax return.
Step 5: IRS Verification
The IRS cross-checks the corporation’s filing with individual income tax returns. Discrepancies may result in a CP2000 notice or a request for additional documentation.
Common Mistakes and How to Avoid Them
Several common errors can cause issues with Form 1099-CAP reporting. Corporations can prevent delays and penalties by addressing the following:
- Using missing or incorrect taxpayer identification numbers: Always verify TINs before filing to avoid processing delays or IRS notices.
- Filing using the wrong method: High-volume filers must e-file instead of submitting paper forms, as required by the IRS.
- Failing to recognize gain correctly: Report taxable gain when shareholders receive cash or other property in addition to stock.
- Ignoring constructive ownership rules under Section 318(a): Apply these rules properly to determine corporate control and report ownership changes accurately.
- Delaying corrected filings: Submit corrected forms promptly once errors are identified to prevent penalties and ensure accurate records.
To avoid these issues, corporations should confirm all identification numbers, verify gross proceeds, and follow the IRS General Instructions for Certain Information Returns to ensure accurate and compliant reporting.
Learn more about how to avoid business tax problems in our guide on How to File and Avoid Penalties.
What Happens After You File
After the corporation files Form 1099-CAP, the IRS compares the data against each shareholder’s income tax return to ensure the reported gross proceeds, fair market value, and taxable income align. If differences arise, the IRS may issue a CP2000 notice or request additional information. Using tax software can help both corporations and individuals maintain accurate cost basis records and accurately recognize gains.
Corporations must retain all forms and supporting documents for at least three years from the date of filing. Electronic filers receive confirmation through the IRS e-file system, while paper filers are notified only if there are errors. Shareholders who receive a corrected form or discover discrepancies should file an amended tax return promptly to update their federal income tax withheld and ensure compliance with Internal Revenue Service reporting standards.
FAQs
What is IRS Form 1099-CAP 2021 used for?
IRS Form 1099-CAP 2021 is used to report changes in corporate control and capital structure when a domestic corporation undergoes an acquisition or substantial change. It helps the Internal Revenue Service track taxable income, capital gains, and fair market value distributions.
Who must file Form 1099-CAP, and when are the filing deadlines?
A corporation must file Form 1099-CAP when shareholders receive cash, stock, or other property after significant corporate actions. Filing deadlines include January 31 for shareholders, February 28 for paper forms, and March 31 for those who file electronically.
Are all shareholders required to receive Form 1099-CAP?
No, exempt shareholders such as investment companies, real estate investment trusts, financial institutions, and foreign central banks may not receive the form. These entities are considered exempt recipients under the Investment Company Act and related IRS reporting requirements.
How should taxpayers report amounts shown on Form 1099-CAP?
Taxpayers use the form’s detailed information, including aggregate amount and fair market value, when completing their federal income tax return. It ensures proper gain recognition, updates to cost basis, and correct federal income tax withheld reporting.
What happens if errors occur or a corrected form is issued?
If a corporation discovers errors after submission, it must issue a corrected form promptly to both the shareholder and the Internal Revenue Service. Taxpayers who receive a corrected form should amend their tax return using the update.

