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Message #14923
[Bug 707923] Re: [6.0 and 5] invoice tax - rounding issue
I think this has to be splitted into 2 different bug reports.
The problem Ferdinand reported in THIS bug is about horizontal vs. vertical calculation method.
The bug you, Conrad and mrockel, are talking about is the python floating point behaviour and that decimal should be used instead of float. The problem may look similiar, but it is a very different problem.
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https://bugs.launchpad.net/bugs/707923
Title:
[6.0 and 5] invoice tax - rounding issue
Status in OpenERP Modules (addons):
Won't Fix
Bug description:
see attachment
due to rounding of the calculated tax for each position we get totals
which are wrong.
In Austria we usually group the basis per tax rate and calculate the
tax from this basis to avoid such errors.
in account/invoice.py
class account_invoice_tax -
def compute must be modified
actually only some lines of code to group the invoice lines before
calculating the tax
probably this has been discussed (but not solved) already
References