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This article applies to:

  • Product: ONESOURCE Tax Information Reporting
  • State: Missouri

Missouri

State Annual Filings

Form
Filing Requirements
Corrections
1099-LTC
1099-SA
1099-S
W-2G
Direct filing required of forms that have state withholding.
Corrections of directly filed forms are completed in the 1220 format. Only corrected statements are required.
1099-B
1099-DIV
1099-G
1099-INT
1099-MISC
1099-NEC
1099-OID
1099-PATR
1099-R
5498
File data through the IRS Combined Federal/State Program for forms that meet the federal threshold and have $1,200 or more in the income boxes. Direct filing required of forms that have state withholding.
Corrections of directly filed forms are completed in the 1220 format. Only corrected statements are required.
1099-K
File forms through IRS Combined Federal/State Program when reporting $1200 or more and the form is reportable to IRS
N/A
W-2
Direct filing required of all W-2s that have dollars to report where the taxable state is Missouri.
Corrections of directly filed forms are completed on paper. Only corrected statements are required.
Filing Due Date
 Last day of January (W-2), Last day of February (1099)
Filing Method
 Electronic Upload
Electronic Filing URL
 https://sa.dor.mo.gov/efw2/
Filing Format
 IRS 1220 for 1099 filings, SSA EFW2 for W-2 filings
CFS Participant
 Yes
Supporting Documentation
Additional Information
File Missouri transmittal Form MO W-3 on paper with the filing submissions.
If filing CFS, payers need to alert or have alerted the state that forms are being submitted via CFS. 
From the Missouri guidance: Only NEW Participates who have never been approved as a participant in the CF/SF Program, whether through the Fire System or the Information Returns Intake System (IRIS), must submit a copy of the approval letter from the IRS to the Missouri Department of Revenue as notification of participation, via one of the following methods:
  • Fax: (573) 522-6816
  • Mail To: Missouri Department of Revenue Taxation Division P.O. Box 3375 Jefferson City, MO 651055-3375
Send Filings To
Missouri Department of Revenue
PO Box 3330
Jefferson City, MO 65105 3330