I have a strange problem and I hope its me who is doing something wrong.
When I see an order in admin, I see that tax is not applied to all products. It is 0 for many. I checked each such product in catalog->products and found that they have same tax class assigned as the product on which tax is calculated.
Please tell me where I should look for this. The information regarding tax setting is this:
tax calculation based on 'shipping address'
. Is shipping address same for all items?