Search
Search Trust Tax (ONESOURCE) Support Help and Support.

Montana

Form
Filing Requirements
Corrections
1098
1099-Q
Direct filing of all forms that are reportable to the IRS where the taxable state is Montana.
Corrections of directly filed forms are completed on paper. Only the corrected statements are required.
1099-B
1099-DIV
1099-INT
1099-MISC
1099-NEC
1099-OID
1099-R
Montana participates in the IRS Combined Federal/State Filing Program but still requires direct filing of all forms that are reportable to the IRS where the taxable state is Montana.
N/A
Filing due dates
  • January 31 (1099-NEC, MW-3 and RW-3)
  • Last day of February (if withholding, January 31)
Filing method
Electronic Upload
Electronic filing URL
Filing format
IRS 1220 for 1099 filings
CFS participant
Yes
Supporting documentation
Additional information
Complete Montana reconciliation Form MW-3 online after filings are uploaded.
Send correction filings to


Montana Department of Revenue
PO Box 5835
Helena, MT 59604-5835