IRS Instruction 3921 and 3922 – In the world of employee compensation, stock options and purchase plans are popular benefits that can significantly impact tax obligations. IRS Forms 3921 and 3922 play a crucial role in reporting these transactions, ensuring compliance with tax codes under Sections 422(b) and 423(c). This comprehensive guide breaks down the instructions for these forms, including who must file, key deadlines, penalties, and recent updates. Whether you’re a corporation handling incentive stock options (ISOs) or employee stock purchase plans (ESPPs), understanding these requirements is essential for avoiding costly mistakes.
What Are IRS Forms 3921 and 3922?
Form 3921, titled “Exercise of an Incentive Stock Option Under Section 422(b),” is used by corporations to report the transfer of stock to an employee upon exercising an ISO. This form helps employees calculate potential alternative minimum tax (AMT) implications, as the spread between the exercise price and fair market value (FMV) may be taxable under AMT rules.
Form 3922, “Transfer of Stock Acquired Through an Employee Stock Purchase Plan Under Section 423(c),” reports the first transfer of legal title of shares acquired through a qualified ESPP where the exercise price was less than 100% of the FMV on the grant date or not fixed/determinable. This form assists employees in determining the basis for capital gains tax upon selling the shares.
These forms are information returns, meaning they’re filed with the IRS and provided to employees (or transferees/transferors) but don’t require payment of taxes at filing. They ensure accurate reporting of stock-based compensation events.
Who Must File Form 3921 and When?
Every corporation that transfers stock to a person pursuant to their exercise of an ISO under Section 422(b) must file Form 3921 for each such transfer in the calendar year. This includes the corporation issuing the stock or any agent handling the transaction. Exceptions apply for exercises by nonresident aliens if no Form W-2 was required from the grant date through exercise.
Filing is triggered by the exercise date, regardless of whether it’s a same-day sale or hold. For 2025 transactions, statements must be furnished to employees by February 2, 2026, with IRS filings due by March 2, 2026 (paper) or March 31, 2026 (electronic).
Step-by-Step Instructions for Completing Form 3921
Follow these specific instructions to accurately complete Form 3921:
- Employee’s Name, Address, and TIN: Enter the transferee’s details, including their Taxpayer Identification Number (TIN). Truncation of the TIN is allowed on employee statements but not on IRS copies.
- Account Number: Required if the employee has multiple accounts; otherwise, optional but recommended.
- Box 1: Date the option was granted.
- Box 2: Date the option was exercised.
- Box 3: Exercise price per share.
- Box 4: FMV per share on the exercise date (use sale price for same-day sales).
- Box 5: Number of shares transferred (round to the nearest whole number).
- Box 6: If the transferor is not the corporation whose stock is transferred, provide that corporation’s name, address, and TIN.
Online fillable versions of Copies B and C are available on IRS.gov for easier preparation.
Who Must File Form 3922 and When?
Corporations must file Form 3922 for each transfer of legal title of shares acquired under a Section 423 ESPP, but only if the exercise price was discounted or not fixed on the grant date. This applies to the first transfer, such as depositing shares into a brokerage account. Like Form 3921, exceptions exist for nonresident aliens without W-2 requirements.
The trigger is the date of the first title transfer, not the exercise. Deadlines mirror Form 3921: Employee statements by February 2, 2026, and IRS filings by March 2 or 31, 2026, depending on the method.
Step-by-Step Instructions for Completing Form 3922
Here’s how to fill out Form 3922 based on IRS guidelines:
- Employee’s Name, Address, and TIN: Enter the transferor’s (employee’s) details, with TIN truncation allowed on statements.
- Account Number: Same as Form 3921—required for multiple accounts.
- Box 1: Date the option was granted.
- Box 2: Date the option was exercised.
- Box 3: FMV per share on the grant date.
- Box 4: FMV per share on the exercise date.
- Box 5: Exercise price paid per share.
- Box 6: Number of shares transferred (rounded).
- Box 7: Date legal title was transferred.
- Box 8: Exercise price per share as if exercised on the grant date (only if not fixed on grant date; otherwise, leave blank).
Use online fillable Copies A and B from IRS.gov.
Filing Methods: Electronic vs. Paper
Recent changes have made electronic filing mandatory for many filers. As of January 1, 2024, if a corporation files 10 or more information returns (including W-2s, 1099s, 3921s, and 3922s) in total, all must be filed electronically. Options include the IRS’s Filing Information Returns Electronically (FIRE) system or the new Information Returns Intake System (IRIS) portal.
For fewer than 10 returns, paper filing is allowed, but electronic is encouraged for efficiency. Extensions can be requested via Form 8809 for returns (automatic 30 days) or a letter for statements (not automatic).
Penalties for Late or Incorrect Filing
Non-compliance can lead to significant penalties, adjusted annually for inflation:
- $60 per form if corrected within 30 days.
- $130 per form if corrected by August 1.
- $340 per form if corrected after August 1 or not at all.
Penalties double if both returns and statements are late, with a minimum of $680 for intentional disregard (no cap). Waivers may apply for reasonable cause, de minimis errors (under $100 or $25 per form), or inconsequential mistakes. Small businesses with gross receipts under $5 million have lower maximum penalties.
Recent Updates and Changes for 2025
Key updates include the reduced e-filing threshold to 10 returns, driven by the Taxpayer First Act of 2019, and the introduction of IRIS for streamlined e-filing. Additionally, always check for future developments on IRS.gov, as legislation could impact these forms. For ESPPs, ensure shares are properly identified for tracking first transfers.
Tips for Compliance with Incentive Stock Options and ESPPs
- Round numbers to the nearest whole share or dollar.
- Use unique account or transaction numbers to avoid duplicates.
- Report all ISO exercises, even those exceeding the $100,000 limit (only the qualified portion requires Form 3921).
- Resend undeliverable statements with updated addresses to avoid penalties.
Consult the General Instructions for Certain Information Returns for broader guidance on TIN matching, backup withholding, and corrections.
Conclusion: Stay Compliant with IRS Requirements
Navigating IRS Forms 3921 and 3922 is vital for corporations offering ISOs and ESPPs, helping employees manage their tax responsibilities while avoiding penalties. By following these instructions and leveraging electronic filing tools, you can ensure smooth compliance. For personalized advice, consult a tax professional, as this guide is for informational purposes only. Stay updated via official IRS resources to handle any changes in tax year 2025 and beyond.