Since 2008 new Taxpayer Identification Numbers (German:"Steuerliche Identifikationsnummer" or "Steuer-IdNr") replace the former Tax File Number. Persons who are both employees and self-employed at the same time may receive two taxpayer identification numbers. The corresponding number for organizations, also issued by the tax administration, is named economy identification number ("Wirtschafts-Identifikationsnummer"). These numbering concepts are national systems, organized by the Federal Central Tax Office. For special purpose further value-added tax identification numbers are issued for persons and organizations that are subject to paying VAT as a deduct from their revenues. This is a Europe-wide unified concept. Additionally for all persons joining the military service, a Service Number is issued.