Hello

I have problems to implement the following functionalty: Imagin there is an invoice to a customer of net "200 Euro" with a tax of "10%". When Invoice is validated the following journal-entrys are made correctly:

Validation of Invoice with total amount of 210 Euro receivable \ income : 200 Euro receivable \ taxes due : 10 Euro

No my problem comes when customer pays the invoice with a write-off of the total amount. Imagin customer does not pay the total amount but only 50% . The other 50% will never be paid in the futuer so I do a write-off of 50% of the orinial invoice. When I do this, I have the folowing journal entry for that payment:

Payment of 50% with 50% write-off bank \ receivable : 105 Euro write-off account \ receivable : 105 Euro

My problem is now, that the tax-amount of 10 Euro from the original invoice should be also reduced about 5 Euro, because 50% of the invoice will never be paid.

How can this be solved or how is the correct workflow for this situation in OpenERP to achieve a correct "tax-declaration" ?

Thanks René