The threshold for mandatory electronic filing of Forms 1099-R to the Mississippi Department of Revenue has been lowered from 50 forms to 25 forms. The Mississippi due date for electronically filed Forms 1099-R is March 31. Electronic filing, via upload, is through the state’s new TAP online electronic filing system.
The Form 1099-R electronic file must be prepared using the format specified by the IRS in Publication 1220 for electronic filing of federal Forms 1099-R. Mississippi requires the filing of all federally filed Forms 1099-R that report Mississippi withholding, and Forms 1099-R without withholding where the reported amounts equal $600 or more of Mississippi taxable income.
In Mississippi, retirement plan distributions other than early or excess distributions are not taxable and are not subject to Mississippi state income tax withholding. However, federally defined early or excess retirement distributions (such as are reported on IRS Form 5329) are expressly treated in the Mississippi employer tax guide as wages subject to withholding.