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Sec. 4 Communicating with the IRS
Publication 4810 — Specifications for Electronic Filing of Form 8955-SSA, Annual Registration Statement Identifying Separated Participants With Deferred Vested Benefits · 2026-10-03 edition · updated 2026-10-04 · United States
The Technical Services Operation (TSO) is available to issuers, transmitters, and employers at the numbers listed below. When you call, you’ll be provided guidance on essential elements pertaining to technical aspects for the new Information Returns (IR) Application for Transmitter Control Code (TCC), filing information returns through the (FIRE) Systems, self-help resources, and referrals to tax law topics on IRS.gov. Below are some examples of essential elements:
Form identification
How to obtain a form
Related publications for a form or topic
Filing information returns electronically
FIRE file status information and guidance
Contact TSO Monday through Friday 8:30 am - 5:30 pm ET. Listen to all options before making your selection.
866-455-7438 (toll-free)
304-263-8700 (International) (Not toll-free)
Deaf or hard of hearing customers may call any of our toll-free numbers using their choice of
relay service.
Use the IRS Automated Chatbot/Live chat feature, please visit Filing Information Returns Electronically (FIRE) | Internal Revenue Service. Click the Chat bubble in the bottom right corner.
Chatbot is available 24/7.
Escalation to live chat is available Monday through Friday 8:30 a.m. – 5:30 p.m. E.T.
Get answers to your questions about transmitter control codes and filing information returns
electronically.
- For account-specific questions, you need an IRS (ID.me) account.
The IRS address for FIRE is https://fire.irs.gov/. The address to send a test file electronically is https://fire.test.irs.gov.
Questions regarding the filing of information returns and comments/suggestions regarding this publication can be emailed to fire@irs.gov. When you send emails concerning specific file information, include the company name and the electronic filename or TCC. Don’t include Tax Identification Numbers (TINs) or attachments in email correspondence because electronic mail isn’t secure.
Get a plain-English answer with a citation back to this text.
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