Form 3921 – Exercise of an Incentive Stock Option Under Section 422(b) – Copy A Federal
Form 3921 records the exercise of an incentive stock option (ISO) under Section 422(b). Copy A is the federal copy a company files with the IRS for each ISO exercise by a current or former employee. HR and stock plan teams use these laser forms to batch and file the year’s exercises together.
Specifications
- Form: 3921, Copy A Federal
- Layout: 3-up, three forms per sheet
- Size: 8-1/2″ x 11″ with 1/2″ side perforation
- Paper: 20# laser paper
- Packed 25 forms per item ordered
How to Use
Print a Copy A for each exercise event, separate the forms along the side perforation, and mail the completed batch to the IRS. Copy A is filed with the IRS, not handed to the option holder.
Ordering
Each item ordered contains 25 forms. Order by the number of forms you need, not sheets, since three forms print on each sheet. This is a stocked item with no proof step, and it ships fast, with expedited shipping available at checkout.
Frequently Asked Questions
Who files Form 3921?
Any corporation that transfers stock to an employee who exercises an incentive stock option files Form 3921 for that exercise.
Do I send Copy A to the employee?
No. Copy A is for the IRS. Batch all of the year’s exercises and file them together.
Related links: explore our individual tax forms, W-2 and 1099 tax forms and tax form envelopes.








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