diff --git a/etl/hubspot/hubspotDataTodB.py b/etl/hubspot/hubspotDataTodB.py
index 06cc3be9..4f43f1f7 100644
--- a/etl/hubspot/hubspotDataTodB.py
+++ b/etl/hubspot/hubspotDataTodB.py
@@ -2,7 +2,7 @@ from backend.app.db.connection import db_read_session
 from backend.app.db.models.organisation import Organisation, HubspotDealData
 from sqlmodel import select
 from datetime import datetime, timezone
-from typing import Dict, Optional
+from typing import Dict, Optional, Tuple
 from etl.hubspot.company_data import CompanyData
 from etl.hubspot.hubspotClient import HubspotClient
 from etl.hubspot.s3_uploader import S3Uploader
@@ -103,7 +103,7 @@ class HubspotDataToDb:
         Also handles major_condition_issue_photos file upload to S3 with integrity check.
         """
 
-        def soft_assert(condition, message="Assertion Failed"):
+        def soft_assert(condition: bool, message: str = "Assertion Failed"):
             if not condition:
                 print(f"⚠️ Soft Assert Failed: {message}")
                 return False
@@ -111,6 +111,10 @@ class HubspotDataToDb:
 
         print(f"🔍 Checking if deal needs updating (deal_id={deal_in_db.deal_id})")
 
+        hs_deal: Dict[str, str]
+        hs_company_id: Optional[str]
+        hs_listing: Optional[Dict[str, str]]
+
         hs_deal, hs_company_id, hs_listing = (
             hubspot_client.get_deal_and_company_and_listing(deal_in_db.deal_id)
         )
diff --git a/etl/hubspot/tests/test_hubspot_deal_differ.py b/etl/hubspot/tests/test_hubspot_deal_differ.py
index 12c5a288..876fcab9 100644
--- a/etl/hubspot/tests/test_hubspot_deal_differ.py
+++ b/etl/hubspot/tests/test_hubspot_deal_differ.py
@@ -31,9 +31,9 @@ def make_new_deal(deal_id: uuid.UUID, **overrides: Any) -> Dict[str, str]:
     }
 
 
-# -------------------------------------
-# Random change we aren't interested in
-# -------------------------------------
+# ====================
+# PASHUB TRIGGER TESTS
+# ====================
 
 
 @pytest.mark.parametrize(
@@ -59,11 +59,6 @@ def test_pashub_trigger__outcome_note_added__returns_false(
     )
 
 
-# -------------------------
-# Pashub link changes
-# -------------------------
-
-
 @pytest.mark.parametrize(
     "old_overrides,new_overrides,expected",
     [
@@ -92,11 +87,6 @@ def test_pashub_trigger__pashub_link_changed__returns_true(
     )
 
 
-# -------------------------
-# Coordination
-# -------------------------
-
-
 @pytest.mark.parametrize(
     "coordination_status,expected",
     [
@@ -155,11 +145,6 @@ def test_pashub_trigger__coordination_completed_and_pashub_link_not_set__returns
     )
 
 
-# -------------------------
-# Design
-# -------------------------
-
-
 def test_pashub_trigger__design_completed_and_pashub_link_set__returns_true() -> None:
     deal_id = uuid.uuid4()
 
@@ -204,11 +189,6 @@ def test_pashub_trigger__design_completed_and_pashub_link_not_set__returns_false
     )
 
 
-# -------------------------
-# Lodgement
-# -------------------------
-
-
 @pytest.mark.parametrize(
     "lodgement_status,expected",
     [
@@ -263,11 +243,6 @@ def test_pashub_trigger__lodgement_completed_and_pashub_link_not_set__returns_fa
     )
 
 
-# -------------------------
-# Negative case
-# -------------------------
-
-
 def test_pashub_trigger__coordination_design_lodgement_not_completed_and_pashub_link_set__returns_false() -> (
     None
 ):
@@ -293,3 +268,110 @@ def test_pashub_trigger__coordination_design_lodgement_not_completed_and_pashub_
         )
         is False
     )
+
+
+# =======================
+# DB UPDATE TRIGGER TESTS
+# =======================
+
+
+def test_db_update_trigger__no_changes__returns_false() -> None:
+    deal_id = uuid.uuid4()
+
+    old_deal = make_old_deal(
+        id=deal_id,
+        dealname="Test Deal",
+        dealstage="stage_1",
+        outcome="won",
+    )
+
+    new_deal = make_new_deal(
+        deal_id,
+        hs_object_id="1",
+        dealname="Test Deal",
+        dealstage="stage_1",
+        outcome="won",
+    )
+
+    result = HubspotDealDiffer.check_for_db_update_trigger(
+        new_deal=new_deal,
+        new_company=None,
+        new_listing=None,
+        old_deal=old_deal,
+    )
+
+    assert result is False
+
+
+def test_db_update_trigger__dealname_changed__returns_true() -> None:
+    deal_id = uuid.uuid4()
+
+    old_deal = make_old_deal(
+        id=deal_id,
+        dealname="Old Name",
+    )
+
+    new_deal = make_new_deal(
+        deal_id,
+        hs_object_id="1",
+        dealname="New Name",
+    )
+
+    result = HubspotDealDiffer.check_for_db_update_trigger(
+        new_deal=new_deal,
+        new_company=None,
+        new_listing=None,
+        old_deal=old_deal,
+    )
+
+    assert result is True
+
+
+def test_db_update_trigger__company_changed__returns_true() -> None:
+    deal_id = uuid.uuid4()
+
+    old_deal = make_old_deal(
+        id=deal_id,
+        company_id="old_company",
+    )
+
+    new_deal = make_new_deal(
+        deal_id,
+        hs_object_id="1",
+    )
+
+    new_company = "new_company"
+
+    result = HubspotDealDiffer.check_for_db_update_trigger(
+        new_deal=new_deal,
+        new_company=new_company,
+        new_listing=None,
+        old_deal=old_deal,
+    )
+
+    assert result is True
+
+
+def test_db_update_trigger__listing_changed__returns_true() -> None:
+    deal_id = uuid.uuid4()
+
+    old_deal = make_old_deal(
+        id=deal_id,
+        listing_id="abc",
+    )
+
+    new_deal = make_new_deal(
+        deal_id,
+        hs_object_id="1",
+    )
+
+    new_listing = {"listing_id": "xyz"}
+
+    result = HubspotDealDiffer.check_for_db_update_trigger(
+        new_deal=new_deal,
+        new_company=None,
+        new_listing=new_listing,
+        old_deal=old_deal,
+    )
+
+    assert result is True