diff --git a/kfet/forms.py b/kfet/forms.py
index 9419d9f8..79073f39 100644
--- a/kfet/forms.py
+++ b/kfet/forms.py
@@ -23,6 +23,7 @@ from kfet.models import (
     Transfer,
     TransferGroup,
 )
+from kfet.statistic import SCALE_CLASS_CHOICES
 
 from . import KFET_DELETED_TRIGRAMME
 from .auth import KFET_GENERIC_TRIGRAMME
@@ -587,3 +588,28 @@ class OrderArticleToInventoryForm(forms.Form):
             self.category = kwargs["initial"]["category"]
             self.category_name = kwargs["initial"]["category__name"]
             self.quantity_ordered = kwargs["initial"]["quantity_ordered"]
+
+
+# ----
+# Formulaires pour les statistiques K-Fêt
+# ----
+
+
+class StatScaleForm(forms.Form):
+    """Formulaire pour nettoyer les paramètres envoyés aux
+    vues de statistiques K-Fêt. Non destiné à être affiché.
+    """
+
+    name = forms.ChoiceField(choices=SCALE_CLASS_CHOICES)
+    begin = forms.DateTimeField(required=False)
+    end = forms.DateTimeField(required=False)
+    n_steps = forms.IntegerField(required=False)
+    last = forms.BooleanField(required=False)
+
+
+class AccountStatForm(forms.Form):
+    """ Idem, mais pour la balance d'un compte """
+
+    begin_date = forms.DateTimeField(required=False)
+    end_date = forms.DateTimeField(required=False)
+    last_days = forms.IntegerField(required=False)