US-based site having tax problems

I have two tax-related issues that I can't seem to figure out. Firstly, tax is being calculated per item instead of per order. For example I have an order of three items which each say:

$4.50 +$0.23 of VAT

Instead of having three 4.50 items totaled up, then taxed. The differences this makes in the total tax is subtle, but still wrong. I am overcharging customers on state tax, which is illegal, so I need to fix that. Secondly, despite having clicked the "Apply Discounts Before Taxes" option, it still takes the tax percentage from the pre-discount amount. Again, because of this I am overcharging on state tax.

Any suggestions? I have HikaShop Essential. Thanks!

I just tried checking out with the Apply Discounts After Taxes option and nothing changes. I think this option may be broken?

I should be, I'm running 1.5.3.

I'm not terribly qualified to create my own override plugin. If it's just a matter of copying a file and changing a line or two of code, then I could handle it, but from the description you linked it seems like quite a bit of work. Do you know of anyone who has already done this that can provide a file for me to download?

Thanks so much! I dropped these files into plugins/hikashop, then navigated on the Joomla back end to Hikashop > System > Configuration > Plugins and it wasn't there. I also tried checking out and it doesn't seem to be implemented. Did I install incorrectly?

Thanks again.

I tried that as well, but I figured it was the wrong thing to do because I got this error:

JInstaller::install: File '/home/parsonage/parsonagesoap.com/tmp/install_4e824fc86ef49/custom_quantity_weight.php' does not exist.

Great! That installed correctly, but now no taxes are being charged. Can I move this issue to email? I believe I still have the address.

An error on install:

JInstaller::install: There is already a folder called '/xxx/xxx/xxx.com/plugins/system/custom_quantity_tax.php'. Please initially check whether:
• the Extension is already installed
• the file names in the XML file are spelled correctly
• there are no XML files listed inside the extension.xml file
• all of the files (not including XML files) are correctly listed in the extension.xml file and there are no duplicate entries
• there is an empty folder listed from a previous installation attempt


So I unzipped your zip file and replaced the two files in the plugins/system folder, but that didn't work. Is there something else I need to delete before I install this updated version?

It said the plugin was already installed, even after I deleted the files. The exact error is:

Plugin Install: Plugin "custom_quantity_tax" Already Exists!

I emailed you with some more details about the situation. Sorry for the trouble, thanks for the help.

Hi Nicolas,
Is this plugin for all versions - I currently have Hikashop Business and having the same issues of the taxes being slightly off.

many thanks

I have a same problem. I dont want that the webshop round the unit tax. I'd like to round only the sum tax.

Thanks

(Sorry, I wanted to write this here: www.hikashop.com/en/forum/3-bug-report/3...lculation-error.html )