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https://issues.apache.org/jira/browse/OFBIZ-5163?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13629860#comment-13629860
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Saroj Khamlue edited comment on OFBIZ-5163 at 4/12/13 6:51 AM:
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Hi Paul,
I reverted the change to the tax service, the ProductStore entity and product
store screen.
I also changed the unit test to use the minPurchase in the
TaxAuthorityRateProduct for quantity is one.
Please look at a patch file and let me know what do you think.
Thanks
Saroj Khamlue
was (Author: lovereal):
Hi Paul,
I reverted the change to the tax service and the ProductStore entity and
screen.
I also changed the unit test to use the minPurchase in the
TaxAuthorityRateProduct for quantity is one.
Please look at a patch file and let me know what do you think.
Thanks
Saroj Khamlue
> Tax calculated on unit price before adjustments
> -----------------------------------------------
>
> Key: OFBIZ-5163
> URL: https://issues.apache.org/jira/browse/OFBIZ-5163
> Project: OFBiz
> Issue Type: Bug
> Components: accounting
> Affects Versions: SVN trunk
> Reporter: Paul Foxworthy
> Assignee: Paul Foxworthy
> Attachments: OFBIZ-5163.patch
>
>
> Some taxes cut in at a minimum item price. A promotional adjustment can lower
> the price the customer is paying, so they should not have to pay any tax.
> However, the tax is being calculated on the base item price, before any
> promotional adjustment.
> r1449615 was a partial fix, but only when the order quantity is one. In the
> more complex situation where the quantity is greater than one, at present the
> tax calculation does not have the information it needs. All it has is the
> base unit price for the item ("itemPrice"), and the total amount for the item
> ("itemAmount", which is itemPrice * quantity - adjustments).
> Here's what I think needs to happen.
> 1. We need to define two categories of item adjustments:
> - those which modify the price, including promotional pricing and discounts
> - adjustments for additional services such as shipping, an extended warranty
> and so on.
> The first category should be combined with the product price before tax
> calculations are done. The second category may need to be taxed separately.
> So a new attribute should be added to the OrderAdjustment entity to say which
> it is.
> 2. An additional list of data needs to be supplied to the tax calculation, a
> list of adjusted unit prices with promotional discounts and any other
> adjustments in the first category above. The tax calculation would, of
> course, use the adjusted unit price, so the change at
> https://fisheye6.atlassian.com/browse/ofbiz/trunk/applications/accounting/src/org/ofbiz/accounting/tax/TaxAuthorityServices.java?hb=true#to215
> won't be needed any more.
> If we do these, there would be no need for the calcTaxAfterPromotion
> attribute. In effect, it would always apply, for adjustments in category 1.
> If anyone didn't want that behaviour, all they would need to do is define an
> adjustment in category 2, not 1.
> This issue was found and worked on by Tom at ANTWebsystems, thanks for your
> help.
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