diff --git a/cotisations/admin.py b/cotisations/admin.py
index a26ed35c..03a7efbe 100644
--- a/cotisations/admin.py
+++ b/cotisations/admin.py
@@ -1,12 +1,12 @@
 from django.contrib import admin
 
-from .models import Facture, Article, Banque, Paiement
+from .models import Facture, Article, Banque, Paiement, Cotisation
 
 class FactureAdmin(admin.ModelAdmin):
     list_display = ('user','paiement','name', 'number', 'date')
 
 class ArticleAdmin(admin.ModelAdmin):
-    list_display = ('name','prix')
+    list_display = ('name','prix','cotisation')
 
 class BanqueAdmin(admin.ModelAdmin):
     list_display = ('name',)
@@ -14,7 +14,14 @@ class BanqueAdmin(admin.ModelAdmin):
 class PaiementAdmin(admin.ModelAdmin):
     list_display = ('moyen',)
 
+class PaiementAdmin(admin.ModelAdmin):
+    list_display = ('moyen',)
+
+class CotisationAdmin(admin.ModelAdmin):
+    list_display = ('facture','date_start','date_end')
+
 admin.site.register(Facture, FactureAdmin)
 admin.site.register(Article, ArticleAdmin)
 admin.site.register(Banque, BanqueAdmin)
 admin.site.register(Paiement, PaiementAdmin)
+admin.site.register(Cotisation, CotisationAdmin)
diff --git a/cotisations/migrations/0008_auto_20160702_1614.py b/cotisations/migrations/0008_auto_20160702_1614.py
new file mode 100644
index 00000000..54d6de67
--- /dev/null
+++ b/cotisations/migrations/0008_auto_20160702_1614.py
@@ -0,0 +1,50 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('users', '0005_auto_20160702_0006'),
+        ('cotisations', '0007_auto_20160702_1543'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Cotisation',
+            fields=[
+                ('id', models.AutoField(verbose_name='ID', primary_key=True, serialize=False, auto_created=True)),
+                ('date_start', models.DateTimeField(auto_now_add=True)),
+                ('date_end', models.DateTimeField()),
+            ],
+        ),
+        migrations.AddField(
+            model_name='article',
+            name='cotisation',
+            field=models.BooleanField(default=True),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name='article',
+            name='duration',
+            field=models.DurationField(blank=True, null=True),
+        ),
+        migrations.AddField(
+            model_name='facture',
+            name='valid',
+            field=models.BooleanField(default=True),
+        ),
+        migrations.AddField(
+            model_name='cotisation',
+            name='facture',
+            field=models.ForeignKey(to='cotisations.Facture', on_delete=django.db.models.deletion.PROTECT),
+        ),
+        migrations.AddField(
+            model_name='cotisation',
+            name='user',
+            field=models.ForeignKey(to='users.User', on_delete=django.db.models.deletion.PROTECT),
+        ),
+    ]
diff --git a/cotisations/migrations/0009_remove_cotisation_user.py b/cotisations/migrations/0009_remove_cotisation_user.py
new file mode 100644
index 00000000..4dc65e9a
--- /dev/null
+++ b/cotisations/migrations/0009_remove_cotisation_user.py
@@ -0,0 +1,18 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('cotisations', '0008_auto_20160702_1614'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='cotisation',
+            name='user',
+        ),
+    ]
diff --git a/cotisations/migrations/__pycache__/0008_auto_20160702_1614.cpython-34.pyc b/cotisations/migrations/__pycache__/0008_auto_20160702_1614.cpython-34.pyc
new file mode 100644
index 00000000..eeebbd86
Binary files /dev/null and b/cotisations/migrations/__pycache__/0008_auto_20160702_1614.cpython-34.pyc differ
diff --git a/cotisations/migrations/__pycache__/0009_remove_cotisation_user.cpython-34.pyc b/cotisations/migrations/__pycache__/0009_remove_cotisation_user.cpython-34.pyc
new file mode 100644
index 00000000..5b4d4487
Binary files /dev/null and b/cotisations/migrations/__pycache__/0009_remove_cotisation_user.cpython-34.pyc differ
diff --git a/cotisations/models.py b/cotisations/models.py
index 206bdb1a..195a70c8 100644
--- a/cotisations/models.py
+++ b/cotisations/models.py
@@ -13,13 +13,16 @@ class Facture(models.Model):
     date = models.DateTimeField(auto_now_add=True)
     name = models.CharField(max_length=255)
     prix = models.DecimalField(max_digits=5, decimal_places=2)
+    valid = models.BooleanField(default=True)
 
     def __str__(self):
-        return str(self.name)
+        return str(self.name) + ' ' + str(self.date) + ' ' + str(self.user)
 
 class Article(models.Model):
     name = models.CharField(max_length=255)
     prix = models.DecimalField(max_digits=5, decimal_places=2)
+    cotisation = models.BooleanField()
+    duration = models.DurationField(blank=True, null=True)
 
     def __str__(self):
         return self.name
@@ -36,6 +39,14 @@ class Paiement(models.Model):
     def __str__(self):
         return self.moyen
 
+class Cotisation(models.Model):
+    facture = models.ForeignKey('Facture', on_delete=models.PROTECT)
+    date_start = models.DateTimeField(auto_now_add=True)
+    date_end = models.DateTimeField()
+
+    def __str__(self):
+        return str(self.facture)
+
 class NewFactureForm(ModelForm):
     article = forms.ModelMultipleChoiceField(queryset=Article.objects.all(), label="Article")