To ensure unique identification, the BZSt will gradually assign an Economic Identification Number (W-IdNr.) to every economically active person from November 2024 onwards, without the need for an application. The Tax Identification Number, the tax number and the VAT registration number will continue to be used alongside the W-IdNr. However, the tax number is set to be replaced by the W-IdNr. in the future.

This is never required by the GVL.