This list of deadlines is not exhaustive and may not include some important dates. Where dates are missing or in conflict with IRS information, the IRS information supersedes what is listed here. See "Due Dates" in the current Publication 1220 for confirmation.
The deadline imposed by the Internal Revenue Service for printing and mailing recipient copies is 01/31/2019. This is for Forms 3921, 3922, 1099, 1098, and W2-G. (Exceptions: 1099-MISC reporting for payments in Boxes 8 or 14, 1099-B, 1098-C, and 1099-S)
01/24/2019 is the 1099 Services deadline to print and mail Forms 3921, 3922, 1099, 1098, 1095, W-2, and W-2G Recipient Copies (except for 1099-Misc reporting payments in Boxes 8 or 14, 1099-B, 1098-C, 1099-S).
01/31/2019 is the deadline for filing with the IRS,1099-MISC Non-Employee Compensation (Box 7) amounts, and print/mail Form 5498 Recipient Copies (Furnishing FMV/RMD Information).
02/08/2019 is the 1099 Services deadline to Print/Mail Recipient Copies for Form 1099-B, 1099-S, and 1099-Misc reporting payments in Boxes 8 or 14.
02/15/2019 is the deadline for printing and mailing recipient copies for Form 1099-B, 1099-S, and 1099-Misc reporting payments in Boxes 8 or 14.
02/28/2019 is the deadline for filing Form 3921, 3922, 1099, 1098, and W-2G if filing on paper with IRS via Paper (1099 Services only files electronically).
03/08/2019 is 1099 Services deadline to Print/Mail Form 1042-S Recipient Copies.
03/15/2019: Print/Mail and eFile Form 1042-S
03/27/2019 is the 1099 Services deadline to E-File Form 3921, 3922, 1099, 1098, and W-2G (except for 1099-Misc Box 7).
04/01/2019: File Form 3921, 3922, 1099 (excluding 1099-MISC Box 7 amounts), 1098, and W-2G electronically with the IRS.
04/30/2019: Print and mail recipient copies for Form 5498-ESA.
05/31/2019 print and mail Recipient Copies for Form 5498-SA and 5498 reporting Contributions, and file Form 5498, 5498-ESA, and 5498-SA with IRS via Paper or e-file through the IRS FIRE System.
08/01/2019 File corrections for Forms 3921, 3922, 1099, 1098, 5498, and W-2G with IRS via paper or e-file through the IRS FIRE System.
If 1099 Services is mailing recipient copies for your company, your Information Return data must be provided to 1099 Services in a timely fashion. “Timely fashion” means by the dates above designated as 1099 Services deadlines. If data is delivered after the cutoff date 1099 Services CANNOT GUARANTEE that your recipient copies will be mailed prior to the deadline.
Likewise the cutoff date for filing electronically with the IRS FIRE system, see above.
Upon completion of recipient copy mailing you will receive a report of all mailed recipients in PDF format. It is the customer's responsibity to review these reports to assure accuracy.