diff --git a/tests/app/main/views/test_send.py b/tests/app/main/views/test_send.py
index 2767dcf2a..0d9c896e4 100644
--- a/tests/app/main/views/test_send.py
+++ b/tests/app/main/views/test_send.py
@@ -285,10 +285,10 @@ def test_set_sender_redirects_if_one_sms_sender(
 @pytest.mark.parametrize(
     ("sender_data"),
     [
-        (create_multiple_sms_senders()),
+        (create_multiple_sms_senders(isdefault1=True)),
     ],
 )
-def test_usnotify_and_notifygov_removed_if_not_default_sender(sender_data):
+def test_usnotify_and_notifygov_sms_sender_removal_not_default(sender_data, mocker):
     from app.main.views.send import remove_notify_from_sender_options
 
     sender_details = remove_notify_from_sender_options(sender_data)
@@ -296,6 +296,21 @@ def test_usnotify_and_notifygov_removed_if_not_default_sender(sender_data):
     assert len(sender_details) == 2
 
 
+@pytest.mark.parametrize(
+    ("sender_data"),
+    [
+        (create_multiple_sms_senders(isdefault1=False, isdefault3=True)),
+        (create_multiple_sms_senders(isdefault1=False, isdefault4=True)),
+    ],
+)
+def test_usnotify_and_notifygov_sms_sender_removal_if_default(sender_data, mocker):
+    from app.main.views.send import remove_notify_from_sender_options
+
+    sender_details = remove_notify_from_sender_options(sender_data)
+
+    assert len(sender_details) == 3
+
+
 def test_that_test_files_exist():
     assert len(test_spreadsheet_files) == 8
     assert len(test_non_spreadsheet_files) == 6
diff --git a/tests/conftest.py b/tests/conftest.py
index 9691605b7..0c43770d3 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -3452,13 +3452,19 @@ def create_sms_sender(
     }
 
 
-def create_multiple_sms_senders(service_id="abcd"):
+def create_multiple_sms_senders(
+    service_id="abcd",
+    isdefault1=True,
+    isdefault2=False,
+    isdefault3=False,
+    isdefault4=False,
+):
     return [
         {
             "id": "1234",
             "service_id": service_id,
             "sms_sender": "Example",
-            "is_default": True,
+            "is_default": isdefault1,
             "created_at": datetime.utcnow(),
             "inbound_number_id": "1234",
             "updated_at": None,
@@ -3467,7 +3473,7 @@ def create_multiple_sms_senders(service_id="abcd"):
             "id": "5678",
             "service_id": service_id,
             "sms_sender": "Example 2",
-            "is_default": False,
+            "is_default": isdefault2,
             "created_at": datetime.utcnow(),
             "inbound_number_id": None,
             "updated_at": None,
@@ -3476,7 +3482,7 @@ def create_multiple_sms_senders(service_id="abcd"):
             "id": "9457",
             "service_id": service_id,
             "sms_sender": "US Notify",
-            "is_default": False,
+            "is_default": isdefault3,
             "created_at": datetime.utcnow(),
             "inbound_number_id": None,
             "updated_at": None,
@@ -3485,7 +3491,7 @@ def create_multiple_sms_senders(service_id="abcd"):
             "id": "9897",
             "service_id": service_id,
             "sms_sender": "Notify.gov",
-            "is_default": False,
+            "is_default": isdefault4,
             "created_at": datetime.utcnow(),
             "inbound_number_id": None,
             "updated_at": None,