De-normalize a national German tax number (Steuernummer)
$ npm install denormalize-steuernummer
const denormalizeSteuernummer = require("denormalize-steuernummer");
denormalizeSteuernummer("3201012312340")
// => { taxState: "DE-BW", taxNumber: "93815/08152" }
denormalizeSteuernummer("3201012312340")
// => { taxState: "DE-SN", taxNumber: "201/123/12340" }
Type: string
Normalized German tax number (Steuernummer).