Twice tax in Grand Total

[idziakjakub]

After upgrade Magento from 1.9.2.2 to 1.9.2.4 I have doubled tax amount in Quote.

I have found solution for this issue: http://stackoverflow.com/questions/17590364/magento-applying-tax-vat-twice/35870460#35870460

The problem occurs when you have additional totals in project. The problem can be solved by adding correct dependencies on tax subtotal, so Magento keep the correct order.

[tmotyl]

+1

[tmotyl]

fixed in https://github.com/OpenMage/magento-lts/commit/b9726b9997e2bece26d37d91c92f32fbb18aebb4

[hannes011]

This is a major change which is causing troubles for the calculation of shipping rate! Is "shipping" really needed as prerequisite for subtotal? A: shipping is not included within subtotal B: some shipping methods calculate there rate based on subtotal

This change led to strange behavior: once the totals are already calculated and stored/cached then the subtotal doesn't include tax anymore (as expected) BUT when totals will be collected first time the "shipping" total is executed before "tax_subtotal", so the subtotal still contains tax, which leads to inconsistency...

FYI @tmotyl @sreichel @idziakjakub

[Schrank]

I saw it and maybe this is important for this: https://blog.fabian-blechschmidt.de/mage_weee-and-why-it-is-important-for-tax-calculation/ (didn't dig into it)

[Schrank]

Maybe you want to include https://github.com/ikonoshirt/TopologicalSearch into OpenMage, happy if you do! <3

[hannes011]

Simple fix would be just this I guess:

--- a/app/code/core/Mage/Tax/etc/config.xml
+++ b/app/code/core/Mage/Tax/etc/config.xml
@@ -162,7 +162,7 @@
                 <totals>
                     <tax_subtotal>
                         <class>tax/sales_total_quote_subtotal</class>
-                        <after>subtotal,nominal,shipping,freeshipping</after>
+                        <after>subtotal,nominal,freeshipping</after>
                         <before>tax,discount</before>
                     </tax_subtotal>
                     <tax_shipping>

[henrykbrzoska]

Isn't it dependent on the principles of calculating tax(country of taxation)?

[lemundo-team]

Hi @henrykbrzoska it's actually only on the base principle that subtotal does not contain shipping but shipping may be based on subtotal

[lemundo-team]

@tmotyl @sreichel @idziakjakub we have provided a pull request to solve this issue but it needs to be reviewed: #1104

[doejoe13]

Hello, got exactly same issue after upgrade from 1.7. Using owebia/magento1-module-advanced-shipping for shipping, rates calculated on weight. Fix suggested by @hannes011 is not working for me. Neither solution from https://community.magento.com/t5/Magento-1-x-Technical-Issues/After-upgrading-from-1-9-3-7-to-1-9-3-9-issue-regarding-shipping/m-p/112864#M9109

[doejoe13]

My issue was caused by connect20/flywebdesign_paypalfee extension. After removed it, everything is OK.