Mississippi

Form
Filing Requirements
Corrections
1099-B
1099-DIV
1099-INT
1099-MISC
1099-NEC
1099-OID
1099-R5498
File data through IRS Combined Federal/State Program. Direct filing required of forms that have state withholding.
Corrections of directly filed forms are completed in the 1220 format. Only the corrected statements are required.
Filing due date
Last day of February
Filing method
Electronic Upload
Electronic filing URL
Filing format
IRS 1220 for 1099 filings
CFS participant
Yes
Supporting documentation
Additional information
File a separate Mississippi Form 89-140 on paper for every type of return.