Streamline Your Tax Compliance and Reporting
Expert Year-End Stock Plan Reporting, Done Right
Year-End 6039 Reporting Important Dates
Click to view key milestones to help you plan ahead for the 6039 reporting process.
Specialized Reporting Services
6039 Reporting:
- Proprietary data audits ensure accuracy before mailing or IRS submission.
- Aggregate participant forms, reducing confusion and mailing costs.
Disposition Reporting:
- Seamlessly merge equity data into survey templates for mailing.
- Track returned survey results with precision.
- Support tax compliance for disqualified dispositions, including potential tax benefits.


The Team That’s Got Your Back
Our experienced professionals are dedicated to providing timely, reliable, and secure solutions, so you can confidently meet your reporting obligations with ease.
- Dedicated Project Manager: Enjoy white-glove project guidance from start to finish.
- Data Security: Ensure secure data upload and download via our Atlassian-based system.
- Traceable, Secure Mailing: We handle participant forms with precision and care.
- Informative Participant Letters: Included with most services for added clarity.
- Electronic Filing: We handle IRS submissions, eliminating the need for complex file formatting or obtaining a TCC.
- Late Filing Assistance: Need extra time? Our experts can guide you through the extension process.
Why Companies Choose SOS
Efficient Year-End Reporting Management
We manage every step of your Form 3921 and 3922 reporting, from data validation to statement generation and IRS filing. Our process helps your team meet the January 31 deadline with accuracy, compliance, and peace of mind.
Experienced Equity Reporting Specialists
Our specialists have decades of experience across platforms such as Fidelity, Morgan Stanley ShareWorks, and Carta. We reconcile equity data, payroll, and tax records with precision to prevent mismatches and avoid costly re-filings.
Collaborative, Deadline-Driven Partnership
We work closely with your HR, Finance, and Payroll teams to anticipate data needs, identify potential issues early, and maintain clear communication throughout the process. Our structured approach keeps your year-end reporting organized and on schedule.



Expertise Across Every Equity System
We integrate seamlessly with leading equity management platforms to streamline administration, ensure accuracy, and reduce manual errors.
Supported platforms include:
- Morgan Stanley ShareWorks
- Fidelity
- E*TRADE / Morgan Stanley at Work
- Carta
- Charles Schwab
- BAML
- Certent
- Computershare
- UBS
- Global Shares
