diff --git a/geruecht/baruser/routes.py b/geruecht/baruser/routes.py
index 92ac2bb..a8c47a4 100644
--- a/geruecht/baruser/routes.py
+++ b/geruecht/baruser/routes.py
@@ -95,6 +95,37 @@ def _getUsers(**kwargs):
     retVal = ldap.getAllUser()
     return jsonify(retVal)
 
+@baruser.route("/bar/storno", methods=['POST'])
+@login_required(groups=[BAR])
+def _storno(**kwargs):
+    """ Function for Baruser to storno amount
+
+            This function added to the user with the posted userID the posted amount.
+
+            Returns:
+                JSON-File with userID and the amount
+                or ERROR 401 Permission Denied
+        """
+    data = request.get_json()
+    userID = data['userId']
+    amount = int(data['amount'])
+
+    date = datetime.now()
+    userController.addCredit(userID, amount, year=date.year, month=date.month)
+    user = userController.getUser(userID)
+    geruecht = user.getGeruecht(year=date.year)
+    month = geruecht.getMonth(month=date.month)
+    amount = abs(month[0] - month[1])
+    all = geruecht.getSchulden()
+    if all >= 0:
+        type = 'credit'
+    else:
+        type = 'amount'
+    dic = user.toJSON()
+    dic['amount'] = abs(all)
+    dic['type'] = type
+
+    return jsonify(dic)
 
 @baruser.route("/barGetUser", methods=['POST'])
 @login_required(groups=[BAR])