diff --git a/ext/custom-addons/dp_sequence_date_range_monthly/__init__.py b/ext/custom-addons/dp_sequence_date_range_monthly/__init__.py
new file mode 100644
index 00000000..f6229e8e
--- /dev/null
+++ b/ext/custom-addons/dp_sequence_date_range_monthly/__init__.py
@@ -0,0 +1,24 @@
+# -*- coding: utf-8 -*-
+##############################################################################
+#
+#    datenpol gmbh
+#    Copyright (C) 2013-TODAY datenpol gmbh (<http://www.datenpol.at/>)
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU Affero General Public License for more details.
+#
+#    You should have received a copy of the GNU Affero General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+##############################################################################
+
+import models
+
+# vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
diff --git a/ext/custom-addons/dp_sequence_date_range_monthly/__manifest__.py b/ext/custom-addons/dp_sequence_date_range_monthly/__manifest__.py
new file mode 100644
index 00000000..7e4bfdb8
--- /dev/null
+++ b/ext/custom-addons/dp_sequence_date_range_monthly/__manifest__.py
@@ -0,0 +1,41 @@
+# -*- coding: utf-8 -*-
+##############################################################################
+#
+#    datenpol gmbh
+#    Copyright (C) 2013-TODAY datenpol gmbh (<http://www.datenpol.at/>)
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU Affero General Public License for more details.
+#
+#    You should have received a copy of the GNU Affero General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+##############################################################################
+
+
+# noinspection PyStatementEffect
+{
+    'name': 'datenpol Sequence date range monthly',
+    'category': 'Custom',
+    'version': '1.0',
+    'description': """Für jeden Monat gibt es eine eigenen Nummernkreis""",
+    'author': 'datenpol gmbh',
+    'website': 'http://www.datenpol.at/',
+    'depends': [
+        'base',
+    ],
+    'data': [
+        'views/ir_sequence_view.xml',
+    ],
+    'installable': True,
+    'auto_install': False,
+}
+
+# vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
diff --git a/ext/custom-addons/dp_sequence_date_range_monthly/models/__init__.py b/ext/custom-addons/dp_sequence_date_range_monthly/models/__init__.py
new file mode 100644
index 00000000..44d8e2ca
--- /dev/null
+++ b/ext/custom-addons/dp_sequence_date_range_monthly/models/__init__.py
@@ -0,0 +1,26 @@
+# -*- coding: utf-8 -*-
+##############################################################################
+#
+#    OpenERP, Open Source Management Solution
+#    Copyright (C) 20014-2016 datenpol gmbh (<http://www.datenpol.at/>).
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU Affero General Public License for more details.
+#
+#    You should have received a copy of the GNU Affero General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+##############################################################################
+
+import ir_sequence
+
+
+
+# vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
diff --git a/ext/custom-addons/dp_sequence_date_range_monthly/models/ir_sequence.py b/ext/custom-addons/dp_sequence_date_range_monthly/models/ir_sequence.py
new file mode 100644
index 00000000..b1fe83e6
--- /dev/null
+++ b/ext/custom-addons/dp_sequence_date_range_monthly/models/ir_sequence.py
@@ -0,0 +1,60 @@
+# -*- coding: utf-8 -*-
+##############################################################################
+#
+#    datenpol gmbh
+#    Copyright (C) 2013-TODAY datenpol gmbh (<http://www.datenpol.at/>)
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU Affero General Public License as
+#    published by the Free Software Foundation, either version 3 of the
+#    License, or (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU Affero General Public License for more details.
+#
+#    You should have received a copy of the GNU Affero General Public License
+#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+#
+##############################################################################
+
+from odoo import api, fields, models
+from datetime import datetime, timedelta
+from dateutil.relativedelta import relativedelta
+
+
+class IrSequence(models.Model):
+    _inherit = 'ir.sequence'
+
+    monthly_date_range = fields.Boolean('Monthly date_range')
+
+    def _create_date_range_seq(self, date):
+        year = fields.Date.from_string(date).strftime('%Y')
+        if self.monthly_date_range:
+            month = fields.Date.from_string(date).strftime('%m')
+            last_day = datetime(int(year), int(month), 1) + relativedelta(day=31)
+            date_from = '{}-{}-01'.format(year, month)
+            date_to = '{}-{}-{}'.format(year, month, last_day.day)
+        else:
+            date_from = '{}-01-01'.format(year)
+            date_to = '{}-12-31'.format(year)
+        date_range = self.env['ir.sequence.date_range'].search \
+            ([('sequence_id', '=', self.id), ('date_from', '>=', date), ('date_from', '<=', date_to)],
+             order='date_from desc', limit=1)
+        if date_range:
+            date_to = datetime.strptime(date_range.date_from, '%Y-%m-%d') + timedelta(days=-1)
+            date_to = date_to.strftime('%Y-%m-%d')
+        date_range = self.env['ir.sequence.date_range'].search \
+            ([('sequence_id', '=', self.id), ('date_to', '>=', date_from), ('date_to', '<=', date)],
+             order='date_to desc',
+             limit=1)
+        if date_range:
+            date_from = datetime.strptime(date_range.date_to, '%Y-%m-%d') + timedelta(days=1)
+            date_from = date_from.strftime('%Y-%m-%d')
+        seq_date_range = self.env['ir.sequence.date_range'].sudo().create({
+            'date_from': date_from,
+            'date_to': date_to,
+            'sequence_id': self.id,
+        })
+        return seq_date_range
diff --git a/ext/custom-addons/dp_sequence_date_range_monthly/static/description/icon.png b/ext/custom-addons/dp_sequence_date_range_monthly/static/description/icon.png
new file mode 100644
index 00000000..8387d765
Binary files /dev/null and b/ext/custom-addons/dp_sequence_date_range_monthly/static/description/icon.png differ
diff --git a/ext/custom-addons/dp_sequence_date_range_monthly/views/ir_sequence_view.xml b/ext/custom-addons/dp_sequence_date_range_monthly/views/ir_sequence_view.xml
new file mode 100644
index 00000000..ae36fd1f
--- /dev/null
+++ b/ext/custom-addons/dp_sequence_date_range_monthly/views/ir_sequence_view.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <data>
+
+        <!-- IR_SEQUENCE - EXTENDED FORM -->
+        <record id="dp_ir_sequence_form" model="ir.ui.view">
+            <field name="name">dp_ir_sequence_form</field>
+            <field name="model">ir.sequence</field>
+            <field name="inherit_id" ref="base.sequence_view"/>
+            <field name="arch" type="xml">
+                <field name="use_date_range" position="after">
+                    <field name="monthly_date_range"/>
+                </field>
+            </field>
+        </record>
+
+    </data>
+</odoo>
diff --git a/setup/lib/config_at.py b/setup/lib/config_at.py
index 5c5fea13..6f5c17e0 100644
--- a/setup/lib/config_at.py
+++ b/setup/lib/config_at.py
@@ -141,13 +141,15 @@ class Config():
                 # 'number_next_actual': 1,
                 'prefix': '%(y)s',
                 'padding': 4,
-                'use_date_range': True
+                'use_date_range': True,
+                'monthly_date_range': False
             },
             'account.invoice': {
                 # 'number_next_actual': 0001,
                 'prefix': '%(y)s%(month)s',
                 'padding': 4,
-                'use_date_range': True
+                'use_date_range': True,
+                'monthly_date_range': False
             },
             # Wenn 'account.invoice_refund' auskommentiert ist, dann wird
             # für die Gutschrift der selbe Nummernkreis verwendet
@@ -157,7 +159,8 @@ class Config():
                 'implementation': 'no_gap',
                 'prefix': '%(y)s',
                 'padding': 4,
-                'use_date_range': True
+                'use_date_range': True,
+                'monthly_date_range': False
             },
             #'picking.out': {
             #    # 'number_next_actual': 1,