diff --git a/expenses_manager/expenses/views.py b/expenses_manager/expenses/views.py
index bbb139e..dcd384f 100644
--- a/expenses_manager/expenses/views.py
+++ b/expenses_manager/expenses/views.py
@@ -1,3 +1,4 @@
+import logging
 from operator import truediv
 from datetime import date, datetime
 from django.contrib import messages
@@ -39,6 +40,7 @@ MONTHS = {
     12: "DICIEMBRE",
 }
 
+logger = logging.getLogger(__name__)
 
 def _get_int(value):
     try:
@@ -127,8 +129,11 @@ def expense_list(request):
     category = _get_int(request.GET.get("category"))
     account_id = _get_int(request.GET.get("account"))
 
-    tag_ids = request.GET.getlist("tag")
-    tag_ids = [int(t) for t in tag_ids]
+    tag_ids = [
+        t_id
+        for t in request.GET.getlist("tag")
+        if (t_id:= _get_int(t)) is not None
+    ]
 
     if year:
         expenses = expenses.filter(date__year=year)
@@ -449,7 +454,11 @@ def dashboard(request):
         try:
             monthly_data = acc.monthly_balance(selected_year)
             m_balance = [float(row["balance"]) for row in monthly_data]
-        except:
+        except Exception:
+            logger.exception(
+                "Error calculando monthly_balance para la cuenta %s (año %s)",
+                acc.id, selected_year
+            )
             m_balance = [0] * 12
         
         if selected_year == today.year: