diff --git a/odoo/addons/base/res/res_partner.py b/odoo/addons/base/res/res_partner.py
index 16c308e7fb1..d62eddde8d2 100644
--- a/odoo/addons/base/res/res_partner.py
+++ b/odoo/addons/base/res/res_partner.py
@@ -539,7 +539,7 @@ class Partner(models.Model):
         self.ensure_one()
         if self.company_name:
             # Create parent company
-            values = dict(name=self.company_name, is_company=True)
+            values = dict(name=self.company_name, is_company=True, vat=self.vat)
             values.update(self._update_fields_values(self._address_fields()))
             new_company = self.create(values)
             # Set new company as my parent