**Impacted versions:** 11.0

**Steps to reproduce:** 

- Configures a user with access to several companies


![administrator odoo](https://user-images.githubusercontent.com/5775695/29488651-46b4cec2-84dd-11e7-9495-e8518e93d336.png)

**Current behavior:**

- In the accounting configuration there is shared field displayed by defects for the sales tax account and purchase tax account
![configure accounting odoo 1](https://user-images.githubusercontent.com/5775695/29488677-f5b53d12-84dd-11e7-8124-831b52423719.png)


**Expected behavior:**

The value of those fields depends on the company. The users that belong to different companies may see by default different values for the field on a given record

Video/Screenshot link (optional):


addons/account/models/chart_template.py
""" This method generates a dictionnary of all the values for the tax that will be created.
        """
        
        children_ids = []
        for child_tax in self.children_tax_ids:
            if tax_template_to_tax.get(child_tax.id):
                children_ids.append(tax_template_to_tax[child_tax.id])
        self.ensure_one()
        val = {
            'name': self.name,
            'type_tax_use': self.type_tax_use,
            'amount_type': self.amount_type,
            'active': self.active,
            'company_id': company.id,
            'sequence': self.sequence,
            'amount': self.amount,
            'description': self.description,
            'price_include': self.price_include,
            'include_base_amount': self.include_base_amount,
            'analytic': self.analytic,
            'tag_ids': [(6, 0, [t.id for t in self.tag_ids])],
            'children_tax_ids': [(6, 0, children_ids)],
            'tax_adjustment': self.tax_adjustment,
            'tax_exigibility': self.tax_exigibility,
        }
        if self.tax_group_id:
            val['tax_group_id'] = self.tax_group_id.id
        return val
    @api.multi
    def _generate_tax(self, company):