Hi,
The report will post to Tax payable account, if you go through the description of the report, it creates the advance return for tax on sales/purchases and if required to create Batch session for automatic transfer posting to tax payables.
The batch input session uses the standard Transaction of FB41. Normally, it used to clear the VAT GL posting for Input/Output.
You can click the program documentation for more detail purpose of this report.
Thanks
Gopinath G