diff --git a/files/modify_csv.py b/files/modify_csv.py
index d9ee045..3e1d837 100755
--- a/files/modify_csv.py
+++ b/files/modify_csv.py
@@ -3,8 +3,18 @@
 import csv
 import os
 from datetime import date
+from datetime import datetime
 
-default_csv = "ausgaben_month/ausgaben.csv"
+
+def check_csv_file_create_new():
+    current_month = datetime.now().month
+    current_year = datetime.now().year
+    csv_file = str(current_year) + "-" + \
+        str(current_month) + "-" + "ausgaben.csv"
+    return str(csv_file)
+
+
+default_csv = "ausgaben_month/" + check_csv_file_create_new()
 
 
 def create_csv_file(csv_path=default_csv):
@@ -57,6 +67,7 @@ def sum_all():
 
 
 if __name__ == "__main__":
+    default_csv = "ausgaben_month/ausgaben.csv"
     print(sum_all())
     # Apply multiple filters
     # print(create_csv_file())