Hello Guido, the handling of tax numbers and tax identification numbers in the SAP S/4HANA business partner model can be quite complex due to the different requirements of different countries and use cases. In Germany, there are essentially two important tax numbers for natural persons: 1. Tax number (a local tax number, usually assigned by local tax offices) 2. Tax identification number (the federal tax identification number that every citizen in Germany receives) Your question is aimed at how these two numbers can be correctly entered and differentiated in SAP in the business partner (BP) ### Standard procedure in SAP S/4HANA: 1. Tax number (local tax number): - Tax type "DE1" is usually used for the local tax number. This type can also include other provisions such as the specification according to §48 EStG (building deduction tax). 2. Tax identification number (nationwide, 11-digit): - In many implementations a separate tax type is created for this, for example "DE2", as the tax identification number is a separate and uniquely assignable number. ### Recommended procedure: - DE0: VAT ID (if it is a person or company subject to VAT) - DE1: Local tax number (as assigned by the tax office) - DE2: Tax identification number (11-digit, nationwide, for natural persons) ### To create a new tax type: - Go to the SPRO (Customizing) - Navigate to "Credit management -> Basic data -> Business partner" - Add a new tax type under "Identification types", e.g. "DE2" This procedure should ensure that the various tax numbers are managed correctly and uniquely in the system. There is no strict "standard" on the part of SAP, as business requirements and legal situations can vary. It is therefore important to coordinate your own requirements with the local legal requirements and carry out customizing accordingly. ### Tip: Also check the necessities and requirements with your tax advisor or a configuration consultant responsible for you to ensure that all requirements are met in a legally compliant and systematic manner. Best regards [your name]
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