In summary, we have described an air-stable and scalable redox-active pyridinium fluoroborate reagent PNSF. A crucial design aspect of this radical fluorosulfonamidation reagent lies in its cationic nature, facilitating the gradual formation of fluorosulfonamide radical (• NSO2F) through a single electron transfer (SET) reduction process under photocatalytic conditions. This reservoir of fluorosulfonamide radicals can engage with diverse (hetero)arenes and olefins, yielding a diverse array of functionalized sulfamoyl fluoride compounds. Further study of this highly reactive and bench-stable solid reagent is underway in the laboratory.