Sulfonimidoyl　fluorides,　the　chiral　aza-isosteres　of　sulfonyl　fluorides,　have　gained　increasing　attention　as　a　powerful　linkage　agent　in　the　sulfur(VI)-fluoride　exchange　reaction　(SuFEx).　The　hexavalent　sulfonimidoyl　fluorides　are　typically　prepared　from　organosulfur　in　high　oxidation　states.　We　report　herein　an　electrochemical　approach　using　the　readily　available,　bench-stable,　yet　underexplored　tetravalent　sulfinamidines　without　external　chemical　oxidants.　The　usefulness　of　the　obtained　sulfonimidoyl　fluorides　is　demonstrated　by　their　versatile　SuFEx　reactivity.