diff --git a/cotisations/forms.py b/cotisations/forms.py
index e1dd9e28..5d432849 100644
--- a/cotisations/forms.py
+++ b/cotisations/forms.py
@@ -60,9 +60,7 @@ class FactureForm(FieldPermissionFormMixin, FormRevMixin, ModelForm):
         super(FactureForm, self).__init__(*args, prefix=prefix, **kwargs)
         self.fields['paiement'].empty_label = \
             _("Select a payment method")
-        self.fields['paiement'].queryset = Paiement.objects.filter(
-            pk__in=map(lambda x: x.pk, Paiement.find_allowed_payments(user))
-        )
+        self.fields['paiement'].queryset = Paiement.find_allowed_payments(user)
         if not creation:
             self.fields['user'].label = _("Member")
             self.fields['user'].empty_label = \
@@ -106,9 +104,7 @@ class SelectUserArticleForm(FormRevMixin, Form):
     def __init__(self, *args, **kwargs):
         user = kwargs.pop('user')
         super(SelectUserArticleForm, self).__init__(*args, **kwargs)
-        self.fields['article'].queryset = Article.objects.filter(
-            pk__in=map(lambda x: x.pk, Article.find_allowed_articles(user))
-        )
+        self.fields['article'].queryset = Article.find_allowed_articles(user)
 
 
 class SelectClubArticleForm(Form):
@@ -129,12 +125,9 @@ class SelectClubArticleForm(Form):
         required=True
     )
 
-    def __init__(self, *args, **kwargs):
-        user = kwargs.pop('user')
+    def __init__(self, user, *args, **kwargs):
         super(SelectClubArticleForm, self).__init__(*args, **kwargs)
-        self.fields['article'].queryset = Article.objects.filter(
-            pk__in=map(lambda x: x.pk, Article.find_allowed_articles(user))
-        )
+        self.fields['article'].queryset = Article.find_allowed_articles(user)
 
 
 # TODO : change Facture to Invoice
@@ -284,15 +277,12 @@ class RechargeForm(FormRevMixin, Form):
         label=_l("Payment method")
     )
 
-    def __init__(self, *args, **kwargs):
-        self.user = kwargs.pop('user')
+    def __init__(self, *args, user=None, **kwargs):
+        self.user = user
         super(RechargeForm, self).__init__(*args, **kwargs)
         self.fields['payment'].empty_label = \
             _("Select a payment method")
-        self.fields['payment'].queryset = Paiement.objects.filter(
-            pk__in=map(lambda x: x.pk,
-                       Paiement.find_allowed_payments(self.user))
-        )
+        self.fields['payment'].queryset = Paiement.find_allowed_payments(user)
 
     def clean_value(self):
         """
diff --git a/cotisations/models.py b/cotisations/models.py
index 5cd30e5d..5b20c055 100644
--- a/cotisations/models.py
+++ b/cotisations/models.py
@@ -567,7 +567,13 @@ class Article(RevMixin, AclMixin, models.Model):
 
     @classmethod
     def find_allowed_articles(cls, user):
-        return [p for p in cls.objects.all() if p.can_buy_article(user)[0]]
+        """Finds every allowed articles for an user.
+
+        :param user: The user requesting articles.
+        """
+        if user.has_perm('cotisations.buy_every_article'):
+            return cls.objects.all()
+        return cls.objects.filter(available_for_everyone=True)
 
 
 class Banque(RevMixin, AclMixin, models.Model):
@@ -726,7 +732,13 @@ class Paiement(RevMixin, AclMixin, models.Model):
 
     @classmethod
     def find_allowed_payments(cls, user):
-        return [p for p in cls.objects.all() if p.can_use_payment(user)[0]]
+        """Finds every allowed payments for an user.
+
+        :param user: The user requesting payment methods.
+        """
+        if user.has_perm('cotisations.use_every_payment'):
+            return cls.objects.all()
+        return cls.objects.filter(available_for_everyone=True)
 
 
 class Cotisation(RevMixin, AclMixin, models.Model):