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Credit memo item taxation rules should be the same as the ones in the product

According to




On credit memo generated from invoices, the taxes are calculated always with the tax exclusive mode, regardless of the tax configuration of the billed charges in the original invoice.


Our customer considers this incorrect, and thinks that the behaviour should be the same as in credit memos generated from product rate plan charges, on which the tax rule configured in the charge (in this case would be the billed charge on the invoice) is applied in the tax calculation of the credit memo tax item.


Or at least let it be a configurable setting on Biliing settings:


Tax calculation rule for credit memos generated from invoices:

  • Default rule (tax exclusive)
  • Same tax rule as billed charges on the invoice