diff --git a/addons/point_of_sale/i18n/point_of_sale.pot b/addons/point_of_sale/i18n/point_of_sale.pot
index 14f672223cf..68059381036 100644
--- a/addons/point_of_sale/i18n/point_of_sale.pot
+++ b/addons/point_of_sale/i18n/point_of_sale.pot
@@ -4387,6 +4387,20 @@ msgstr ""
 msgid "Slash"
 msgstr ""
 
+#. module: point_of_sale
+#: model:product.product,name:point_of_sale.small_shelf
+#: model:product.template,name:point_of_sale.small_shelf_product_template
+msgid "Small Shelf"
+msgstr ""
+
+#. module: point_of_sale
+#: code:addons/point_of_sale/models/pos_session.py:0
+#, python-format
+msgid ""
+"Some Cash Registers are already posted. Please reset them to new in order to close the session.\n"
+"Cash Registers: %r"
+msgstr ""
+
 #. module: point_of_sale
 #. openerp-web
 #: code:addons/point_of_sale/static/src/js/Chrome.js:0
diff --git a/addons/point_of_sale/models/pos_session.py b/addons/point_of_sale/models/pos_session.py
index 9c57550480f..af1b7ba1fa8 100644
--- a/addons/point_of_sale/models/pos_session.py
+++ b/addons/point_of_sale/models/pos_session.py
@@ -177,6 +177,13 @@ class PosSession(models.Model):
             if (company.period_lock_date and start_date <= company.period_lock_date) or (company.fiscalyear_lock_date and start_date <= company.fiscalyear_lock_date):
                 raise ValidationError(_("You cannot create a session before the accounting lock date."))
 
+    def _check_bank_statement_state(self):
+        for session in self:
+            closed_statement_ids = session.statement_ids.filtered(lambda x: x.state != "open")
+            if closed_statement_ids:
+                raise UserError(_("Some Cash Registers are already posted. Please reset them to new in order to close the session.\n"
+                                  "Cash Registers: %r", list(statement.name for statement in closed_statement_ids)))
+
     @api.model
     def create(self, values):
         config_id = values.get('config_id') or self.env.context.get('default_config_id')
@@ -277,6 +284,7 @@ class PosSession(models.Model):
         # Session without cash payment method will not have a cash register.
         # However, there could be other payment methods, thus, session still
         # needs to be validated.
+        self._check_bank_statement_state()
         if not self.cash_register_id:
             return self._validate_session(balancing_account, amount_to_balance)