diff --git a/__init__.py b/__init__.py
index 5ea8a19..6be4b11 100644
--- a/__init__.py
+++ b/__init__.py
@@ -28,7 +28,6 @@ def register():
         room.RoomTemplate,
         city.MigrationCity,
         location.HotelLocation,
-        channel.SaleChannel,
         policy.HotelPolicyCancellation,
         company.Company,
         configuration.ConfigurationProduct,
@@ -41,12 +40,15 @@ def register():
         housekeeping.Housekeeping,
         housekeeping.HousekeepingCleaningType,
         party.Party,
+        channel.SaleChannel,
         channel.ChannelTax,
+        channel.ChannelCommission,
         booking.SelectRoomsAsk,
         booking.BookingVoucher,
         booking.RoomsOccupancyStart,
         booking.BookingForecastStart,
         booking.UpdateHolderStart,
+        booking.BookingChannelCommision,
         folio.FolioGuest,
         folio.GuestsListStart,
         folio.StatisticsByMonthStart,
diff --git a/booking.py b/booking.py
index bc741f1..1ab707f 100644
--- a/booking.py
+++ b/booking.py
@@ -154,6 +154,10 @@ class Booking(Workflow, ModelSQL, ModelView):
     )
     invoices = fields.Function(fields.Many2Many('account.invoice',
         None, None, 'Invoices'), 'get_invoices')
+    extra_commissions = fields.Many2Many('hotel.booking-channel.commission',
+        'booking', 'commission', 'Channel Commission', domain=[
+            ('channel', '=', Eval('channel'))
+        ])
 
     @classmethod
     def __setup__(cls):
@@ -1716,6 +1720,15 @@ class ManagerReport(Report):
         report_context['guests_by_city'] = guests_by_city.values()
         report_context['company'] = Company(data['company'])
         user_id = Transaction().context.get('user')
-        print(user_id)
         report_context['user'] = User(user_id)
         return report_context
+
+
+class BookingChannelCommision(ModelSQL):
+    'Booking Channel Commision'
+    __name__ = 'hotel.booking-channel.commission'
+    _table = 'hotel_booking_channel_commission_rel'
+    commission = fields.Many2One('hotel.channel.commission', 'Channel Commission',
+        ondelete='CASCADE', select=True, required=True)
+    booking = fields.Many2One('hotel.booking', 'Booking', ondelete='RESTRICT',
+        required=True)
diff --git a/channel.py b/channel.py
index 86cb293..6b6c7a9 100644
--- a/channel.py
+++ b/channel.py
@@ -8,6 +8,15 @@ from trytond.pool import Pool
 from .constants import PAYMENT_METHOD_CHANNEL
 
 
+class ChannelCommission(ModelSQL, ModelView):
+    'Channel Commission Extra'
+    __name__ = 'hotel.channel.commission'
+    channel = fields.Many2One('hotel.channel', 'Sale Channel',
+        ondelete='CASCADE', select=True, required=True)
+    name = fields.Char('Name', required=True)
+    commission = fields.Float('Commission', required=True, digits=(4, 2))
+
+
 class SaleChannel(ModelSQL, ModelView):
     'Sale Channel'
     __name__ = 'hotel.channel'
@@ -45,15 +54,17 @@ class SaleChannel(ModelSQL, ModelView):
             ]
         )
     currency = fields.Many2One('currency.currency', 'Currency',
-            required=True)
+        required=True)
     price_list = fields.Many2One('product.price_list', 'Price List')
-    payment_method = fields.Selection(PAYMENT_METHOD_CHANNEL,
-        'Payment Method')
+    payment_method = fields.Selection(PAYMENT_METHOD_CHANNEL, 'Payment Method')
     collection_mode = fields.Selection([
         ('', ''),
         ('anticipated', 'Anticipated'),
         ('after_sale', 'After-Sale'),
-        ], 'Collection Mode', required=False, help="Commission collection mode")
+        ], 'Collection Mode', required=False,
+        help="Commission collection mode")
+    extra_commissions = fields.One2Many('hotel.channel.commission',
+        'channel', 'Extra Commissions')
 
     @staticmethod
     def default_company():
diff --git a/channel.xml b/channel.xml
index 065fcea..7c2a9e4 100644
--- a/channel.xml
+++ b/channel.xml
@@ -4,6 +4,17 @@ this repository contains the full copyright notices and license terms. -->
 <tryton>
     <data>
 
+        <record model="ir.ui.view" id="hotel_channel_commission_view_tree">
+            <field name="model">hotel.channel.commission</field>
+            <field name="type">tree</field>
+            <field name="name">channel_commission_tree</field>
+        </record>
+        <record model="ir.ui.view" id="hotel_channel_commission_view_form">
+            <field name="model">hotel.channel.commission</field>
+            <field name="type">form</field>
+            <field name="name">channel_commission_form</field>
+        </record>
+
         <record model="ir.ui.view" id="hotel_channel_view_tree">
             <field name="model">hotel.channel</field>
             <field name="type">tree</field>
diff --git a/view/booking_form.xml b/view/booking_form.xml
index be23854..98af860 100644
--- a/view/booking_form.xml
+++ b/view/booking_form.xml
@@ -75,6 +75,7 @@ this repository contains the full copyright notices and license terms. -->
             <field name="created_channel"/>
             <label name="channel_commission"/>
             <field name="channel_commission"/>
+            <field name="extra_commissions"  colspan="4"/>
         </page>
     </notebook>
     <group col="5" colspan="4" id="buttons">
diff --git a/view/channel_commission_form.xml b/view/channel_commission_form.xml
new file mode 100644
index 0000000..661f10d
--- /dev/null
+++ b/view/channel_commission_form.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0"?>
+<!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
+this repository contains the full copyright notices and license terms. -->
+<form>
+    <label name="name"/>
+    <field name="name"/>
+    <label name="commission"/>
+    <field name="commission"/>
+</form>
diff --git a/view/channel_commission_tree.xml b/view/channel_commission_tree.xml
new file mode 100644
index 0000000..ec82e50
--- /dev/null
+++ b/view/channel_commission_tree.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0"?>
+<!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
+this repository contains the full copyright notices and license terms. -->
+<tree>
+  <field name="name"/>
+  <field name="commission"/>
+</tree>
diff --git a/view/channel_form.xml b/view/channel_form.xml
index 41ae4f5..3139f72 100644
--- a/view/channel_form.xml
+++ b/view/channel_form.xml
@@ -25,4 +25,5 @@ this repository contains the full copyright notices and license terms. -->
     <label name="price_list"/>
     <field name="price_list"/>
     <field name="taxes" colspan="4"/>
+    <field name="extra_commissions" colspan="4"/>
 </form>