Wrong tax computation

[ninu]

Hi,

 

I'm in Malta and VAT is at 18%.

 

The tax computation is not working as should be. For example:

 

 

I have an item list on the website for €0.35 including VAT

 

I create an order for 200 of these items.

 

The working should be

 

 

200 x €0.35 = €70 with breakdown €59.32 Exc VAT and €10.68 VAT

 

 

What Prestashop is doing . . . at least mine

 

 

taking €0.35 findind the price excluding VAT and round it €0.30 and multiply by 200 = €60

 

and presenting the breakdown as €60 Exc VAT and €10.00 VAT, which is not correct.

 

 

Is this the way Prestashop works or I have something wrong in some parameter settings ?

 

Thank you

Ian

[eleazar]

Hi Ian,

 

seems to be a bug that occurs every time when there's more than one of a single item. Same issue was already discussed here

http://www.prestasho...ost__p__1167343

 

and in the German forum, too:

http://www.prestasho...45#entry1288145

 

The following solution should work for the invoice in 1.5.4.1 ( or 1.4.9):

 

Modify line 581 (1.4.9: line 417) of /classes/cart.php from

 

$row['total_wt'] = Tools::ps_round($row['price'] * (float)$row['cart_quantity'] * (1 + (float)$tax_rate / 100), 2);

 

to

 

$row['total_wt'] = Tools::ps_round($row['price'] * (1 + (float)$tax_rate / 100), 2) * (float)$row['cart_quantity'];

 

And please send a report of this bug to github.

 

Regards,

eleazar

Edited July 7, 2013 by eleazar (see edit history)