diff --git a/etl/hubspot/tests/test_hubspot_deal_differ.py b/etl/hubspot/tests/test_hubspot_deal_differ.py
index 8c47f97c8..e57007684 100644
--- a/etl/hubspot/tests/test_hubspot_deal_differ.py
+++ b/etl/hubspot/tests/test_hubspot_deal_differ.py
@@ -720,6 +720,32 @@ def test_abri_tenant_data_fetch__commencement_date_first_set_on_abri_deal__retur
     assert result is True
 
 
+def test_abri_tenant_data_fetch__non_abri_deal__returns_false() -> None:
+    deal_id = uuid.uuid4()
+
+    # Arrange
+    old_deal = make_old_deal(
+        id=deal_id,
+        project_code="Southern Retrofit",
+        expected_commencement_date=None,
+    )
+    new_deal = make_new_deal(
+        deal_id,
+        project_code="Southern Retrofit",
+        expected_commencement_date="2026-08-01",
+    )
+
+    # Act
+    result = HubspotDealDiffer.check_for_abri_tenant_data_fetch(
+        new_deal=new_deal,
+        new_project=None,
+        old_deal=old_deal,
+    )
+
+    # Assert
+    assert result is False
+
+
 # =======================
 # DB UPDATE TRIGGER TESTS
 # =======================