Does Wisconsin require state 1099 tax filing?
Yes, Wisconsin requires 1099-NEC, 1099-MISC, and 1099-R forms to be filed with the Wisconsin Department of Revenue.
Does Wisconsin participate in Combined Federal/State Filing?
Yes, Wisconsin participates in Combined Federal/State Filing. If you utilize CF/SF when filing your 1099s, the IRS will forward the information to the South Carolina Department of Revenue and you will not have to do so yourself.
However, if you are reporting Wisconsin income tax withholding, you are required to submit your 1099s directly with the Wisconsin Department of Revenue. You may also be required to submit state reconciliation form, Form WT-7, with your filing.