Short description:

The VAT Reduction Act stipulates that for invoices for periods ending in the second half of 2020, the invoicing party is free to decide whether these are to be accrued on 01.07.2020 or whether the complete period is to be invoiced with the lower VAT. These two options are implemented in the central master data application for customer billing.


In the central master data application, year-end bills or monthly rolling bills for electricity and gas supply or metering point operation and other services are created for the customer. Depending on the customer's requirements, these are created according to the time slice or key date model. The former means that the higher VAT rate is charged until June 30, 2020, and the lower VAT rate is charged between July 1, 2020 and December 31, 2020. In the key date model, on the other hand, the VAT rate valid at that time is determined depending on the end of the performance period and used for billing. The programming for this is done with .NET code, the billing document creation with Reporting Services and the data processing with SQL databases.

Technical description:

The following subtasks are involved in this project for the adaptations of the central master data application: Determination of the necessary procedure for the step-by-step conversion of the posting-relevant processes, adaptation of the year-end settlement as well as the postings for noted items, settlement and credit memos for the customer's own company code as well as the receiver company codes in SAP based on the key date model and the adaptation of the documents for the mapping of different tax rates in the down payments within a settlement. Furthermore, the customer is supported during tests and the partial go-live. Finally, a handover to the customer's internal IT department takes place for further support in day-to-day business and user training.