diff --git a/apps/notification/tasks.py b/apps/notification/tasks.py
index 7430e0b9..f4f42183 100644
--- a/apps/notification/tasks.py
+++ b/apps/notification/tasks.py
@@ -61,7 +61,7 @@ def send_certificates(email=None, date=None, dry_run=False):
 
     date = datetime.strptime(date, '%d-%m-%Y').date() if date else now().date()
     today = now().date()
-    users = set(list(SchoolPayment.objects.filter(date_end=date, add_days=False).values_list('user_id', flat=True)))
+    users = set(list(SchoolPayment.objects.paid().filter(date_end=date, add_days=False).values_list('user_id', flat=True)))
     user_notifications_qs = UserNotification.objects.filter(user_id__in=users)
     user_notifications = {un.user_id: un for un in user_notifications_qs}
     notified_users = user_notifications_qs.filter(certificate_last_email__date=today).values_list(
diff --git a/apps/payment/models.py b/apps/payment/models.py
index fc3c81cc..e86a590e 100644
--- a/apps/payment/models.py
+++ b/apps/payment/models.py
@@ -83,6 +83,9 @@ class PaymentManger(PolymorphicManager):
     def all(self):
         return self.filter(status__isnull=False)
 
+    def paid(self):
+        return self.filter(status__in=Payment.PW_PAID_STATUSES)
+
 
 class Payment(PolymorphicModel):
     PW_PAID_STATUSES = [