· Transmitter’s TIN
It is the transmitter’s nine-digit Taxpayer Identification Number (TIN). May be an EIN or SSN
It is five-character alpha/numeric Transmitter Control Code assigned by IRS/MCC. It is your unique ID to file the 1099s tax forms to IRS electronically.
How to request a transmitter control code (TCC)
If you are new user of IRS efile service, you should request a transmitter control code (TCC) by filling out IRS Form 4419, "Application for Filing Information Returns Electronically."
You need to mail or fax the form to the IRS at least 30 days before the deadline for filing 1099s. The IRS will send your 5-character transmitter control code by mail once the application is approved.
Internal Revenue Service
Information Returns Branch
230 Murall Drive, Mail Stop 4360
Kearneysville, WV 25430
Or fax your completed Form 4419 to:
304-579-4105 (not toll-free)
Upon approval, a five-character alpha/numeric Transmitter Control Code (TCC) will be assigned and mailed to you. Form 4419 should be submitted to IRS at least 30 days before the due date of the returns for current year processing.
How to efile 1099-misc forms
How to eFile 1099s forms