Software for validity check of exemption certificate

In the future, construction customers must check whether a construction supplier still has a valid exemption certificate for construction withholding tax (FSB). If the customer transfers the construction work to the supplier despite an invalid FSB and does not retain the deduction of 15% of the construction withholding tax, he may be penalized. To check the FSB, the Federal Central Tax Office (BZSt) offers a mass query option via XML-RPC interface. The customer had decided to use a third-party solution here. An implementation of the call of the XML-RPC interface in SAP was ruled out. In the search for a third-party provider, the FSB Shake software from the company Vembex was identified as a possible solution. By preparing the relevant data from the SAP ERP system, the necessary data can be assigned to FSB Shake in the form of a CSV file. The necessary information about an FSB can then be determined here. Thus a statement can be made as to whether an FSB is valid.