credativ team mailing list archive

[Alexey Chechel <707923@xxxxxxxxxxxxxxxxxx>]

Hello!

We have the same problem with TAX calculation.
We use anglo saxons accounting in UK.
TAX rate is 20%.

$ python -V
Python 2.7.2

$ uname -a
Linux 2.6.38-gentoo-r6 #3 SMP x86_64 Intel(R) Xeon(R) CPU E5405 @ 2.00GHz GenuineIntel GNU/Linu

Sale Order info from Magento:
Subtotal (Excl.Tax)	£498.74
Subtotal (Incl.Tax)	£598.49

$ python
Python 2.7.2 (default, Sep 24 2011, 17:01:45)
[GCC 4.5.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> round(498.74*1.2,2)
598.49

it is correct value!

When we create Sale Order in OpenERP, we get incorect value for Total  598.48  :(
Look at attachments.

What can we do for solve that error?


** Attachment added: "ERP order with tax"
   https://bugs.launchpad.net/openobject-addons/+bug/707923/+attachment/2646226/+files/openerp_6.0.3_same_order.jpg

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https://bugs.launchpad.net/bugs/707923

Title:
  [6.0 and 5] invoice tax - rounding issue

Status in OpenERP Addons (modules):
  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

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