Does California require state 1099 tax filing?
Yes, California requires all 1099 forms to be filed with the California Franchise Tax Board.
Does California participate in Combined Federal/State Filing?
Yes, California participates in Combined Federal/State Filing. If you utilize CF/SF when filing your 1099s, the IRS will forward the information to the California Franchise Tax Board and you will not have to do so yourself.
Form 1099-NEC must be filed directly with the state of California, even though they participate in the CF/SF program.