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Can I change VAT sum on suppliers invoice?

Robert Klüsener
on 9/16/13, 10:44 AM 3,449 views

I have an invoice from a supplier who´s system rounds other than OpenERP. As an result the VAT sum on the invoice and the VAT sum in OpenERP differ a few cent.

Is there a possibility to change the VAT sum of an supplier invoice manually?


Andreas Brueckl

--Andreas Brueckl--

| 7 8 7
Vienna, Austria
--Andreas Brueckl--
OpenERP Consulting and Development
Andreas Brueckl
On 9/18/13, 11:37 AM

The problem is that OpenERP first rounds the tax amounts for every line and afterwards calculates the sums of the tax amounts. In Austria or German the tax is based on the total amount. Therefore if you have several lines it can be possible that the amounts are different.

The following module should resolve your problem:

Thank you for the answer. I use the SaaS version of OpenERP. Therefore I can not install the module.

Feuerwear GmbH & Co. KG, Robert Klüsener
on 9/19/13, 2:37 PM

I just ignore the rounding error and - write it off the "difference amount" when you take the payment

on 9/19/13, 7:58 PM
Nicolas Sebastiani
On 1/29/14, 10:53 AM

In Supplier --> Supplier invoice after you have entered all your product lines.

  1. Press update (under subtotal) so the software can calculate taxes.
  2. If you have rounding errors, you can manually change the tax amount in the left box.

Don't press update taxes after having manually modified the numbers as this will cause the software to reset the amounts.

Just press SAVE and your done.

Beware of this last manipulation, at least in 6.0.x : i've had problems with bad account_move_lines after doing that.

Gregoire Huet
on 1/29/14, 11:44 AM

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Asked: 9/16/13, 10:44 AM
Seen: 3449 times
Last updated: 1/18/17, 4:51 AM