diff --git a/litellm/proxy/spend_tracking/spend_management_endpoints.py b/litellm/proxy/spend_tracking/spend_management_endpoints.py
index 0c525ee9466..7a4c1278d40 100644
--- a/litellm/proxy/spend_tracking/spend_management_endpoints.py
+++ b/litellm/proxy/spend_tracking/spend_management_endpoints.py
@@ -29,6 +29,7 @@ from litellm.proxy.auth.user_api_key_auth import user_api_key_auth
 from litellm.proxy.spend_tracking.spend_tracking_utils import (
     get_spend_by_team,
     get_spend_by_team_and_customer,
+    team_model_exclusion_clause,
 )
 from litellm.proxy.utils import handle_exception_on_proxy
 from litellm.repositories.table_repositories import SpendLogsRepository
@@ -991,6 +992,13 @@ async def get_global_spend_report(
         default=None,
         description="View spend for a specific customer_id. Example customer_id='1234. Can be used in conjunction with team_id as well.",
     ),
+    exclude_team_models: bool = fastapi.Query(
+        default=False,
+        description=(
+            "When True, exclude spend from team-owned (BYOK) model deployments. Spend from "
+            "deployments that have since been deleted cannot be classified and remains included"
+        ),
+    ),
 ):
     """
     Get Daily Spend per Team, based on specific startTime and endTime. Per team, view usage by each key, model
@@ -1041,11 +1049,14 @@ async def get_global_spend_report(
         if premium_user is not True:
             verbose_proxy_logger.debug("accessing /spend/report but not a premium user")
             raise ValueError("/spend/report endpoint " + CommonProxyErrors.not_premium_user.value)
+
+        exclusion_sql = team_model_exclusion_clause(exclude_team_models)
+
         if api_key is not None:
             verbose_proxy_logger.debug("Getting /spend for api_key: [set=%s]", api_key is not None)
             if api_key.startswith("sk-"):
                 api_key = hash_token(token=api_key)
-            sql_query = """
+            sql_query = f"""
                 WITH SpendByModelApiKey AS (
                     SELECT
                         sl.api_key,
@@ -1058,7 +1069,7 @@ async def get_global_spend_report(
                     WHERE
                         sl."startTime" >= ($1::timestamptz AT TIME ZONE 'UTC')
                         AND sl."startTime" <  (($2::timestamptz + INTERVAL '1 day') AT TIME ZONE 'UTC')
-                        AND sl.api_key = $3
+                        AND sl.api_key = $3{exclusion_sql}
                     GROUP BY
                         sl.api_key,
                         sl.model
@@ -1088,7 +1099,7 @@ async def get_global_spend_report(
             return db_response
         elif internal_user_id is not None:
             verbose_proxy_logger.debug("Getting /spend for internal_user_id: %s", internal_user_id)
-            sql_query = """
+            sql_query = f"""
                 WITH SpendByModelApiKey AS (
                     SELECT
                         sl.api_key,
@@ -1101,7 +1112,7 @@ async def get_global_spend_report(
                     WHERE
                         sl."startTime" >= ($1::timestamptz AT TIME ZONE 'UTC')
                         AND sl."startTime" <  (($2::timestamptz + INTERVAL '1 day') AT TIME ZONE 'UTC')
-                        AND sl.user = $3
+                        AND sl.user = $3{exclusion_sql}
                     GROUP BY
                         sl.api_key,
                         sl.model
@@ -1131,13 +1142,24 @@ async def get_global_spend_report(
             return db_response
         elif team_id is not None and customer_id is not None:
             return await get_spend_by_team_and_customer(
-                start_date_obj, end_date_obj, team_id, customer_id, prisma_client
+                start_date_obj,
+                end_date_obj,
+                team_id,
+                customer_id,
+                prisma_client,
+                exclude_team_models=exclude_team_models,
             )
         if group_by == "team":
-            return await get_spend_by_team(start_date_obj, end_date_obj, team_id, prisma_client)
+            return await get_spend_by_team(
+                start_date_obj,
+                end_date_obj,
+                team_id,
+                prisma_client,
+                exclude_team_models=exclude_team_models,
+            )
 
         elif group_by == "customer":
-            sql_query = """
+            sql_query = f"""
 
             WITH SpendByModelApiKey AS (
                 SELECT
@@ -1151,7 +1173,7 @@ async def get_global_spend_report(
                     "LiteLLM_SpendLogs" sl
                 WHERE
                     sl."startTime" >= ($1::timestamptz AT TIME ZONE 'UTC')
-                    AND sl."startTime" <  (($2::timestamptz + INTERVAL '1 day') AT TIME ZONE 'UTC')
+                    AND sl."startTime" <  (($2::timestamptz + INTERVAL '1 day') AT TIME ZONE 'UTC'){exclusion_sql}
                 GROUP BY
                     date_trunc('day', sl."startTime"),
                     customer,
@@ -1195,7 +1217,7 @@ async def get_global_spend_report(
 
             return db_response
         elif group_by == "api_key":
-            sql_query = """
+            sql_query = f"""
                 WITH SpendByModelApiKey AS (
                     SELECT
                         sl.api_key,
@@ -1207,7 +1229,7 @@ async def get_global_spend_report(
                         "LiteLLM_SpendLogs" sl
                     WHERE
                         sl."startTime" >= ($1::timestamptz AT TIME ZONE 'UTC')
-                        AND sl."startTime" <  (($2::timestamptz + INTERVAL '1 day') AT TIME ZONE 'UTC')
+                        AND sl."startTime" <  (($2::timestamptz + INTERVAL '1 day') AT TIME ZONE 'UTC'){exclusion_sql}
                     GROUP BY
                         sl.api_key,
                         sl.model
diff --git a/litellm/proxy/spend_tracking/spend_tracking_utils.py b/litellm/proxy/spend_tracking/spend_tracking_utils.py
index a6105b6dff9..99b80e325c0 100644
--- a/litellm/proxy/spend_tracking/spend_tracking_utils.py
+++ b/litellm/proxy/spend_tracking/spend_tracking_utils.py
@@ -510,13 +510,35 @@ def _ensure_datetime_utc(timestamp: datetime) -> datetime:
     return timestamp
 
 
+def team_model_exclusion_clause(exclude_team_models: bool) -> str:
+    """
+    SQL predicate that drops spend rows produced by team-owned (BYOK) deployments.
+
+    Ownership is `model_info.team_id` (what `Router._is_team_specific_model` reads), so the
+    exclusion survives a rename of the deployment's mangled `model_name`. `->>` yields NULL
+    on an absent key or a non-object `model_info`, which fails open to "included".
+
+    Only a literal True opts in, so every existing query stays byte-identical; in-process
+    callers that omit the argument leave FastAPI's `Query` default object in place, and that
+    object is truthy.
+    """
+    if exclude_team_models is not True:
+        return ""
+    return (
+        '\n            AND NOT EXISTS (SELECT 1 FROM "LiteLLM_ProxyModelTable" pm '
+        "WHERE pm.model_id = sl.model_id AND pm.model_info ->> 'team_id' IS NOT NULL)"
+    )
+
+
 async def get_spend_by_team(
     start_date: dt,
     end_date: dt,
     team_id: Optional[str],
     prisma_client: PrismaClient,
+    exclude_team_models: bool = False,
 ):
-    sql_query = """
+    exclusion_sql = team_model_exclusion_clause(exclude_team_models)
+    sql_query = f"""
     WITH SpendByModelApiKey AS (
         SELECT
             date_trunc('day', sl."startTime") AS group_by_day,
@@ -534,7 +556,7 @@ async def get_spend_by_team(
         WHERE
             sl."startTime" >= ($1::timestamptz AT TIME ZONE 'UTC')
             AND sl."startTime" <  (($2::timestamptz + INTERVAL '1 day') AT TIME ZONE 'UTC')
-            AND ($3::text IS NULL OR sl.team_id = $3)
+            AND ($3::text IS NULL OR sl.team_id = $3){exclusion_sql}
         GROUP BY
             date_trunc('day', sl."startTime"),
             tt.team_alias,
@@ -584,8 +606,10 @@ async def get_spend_by_team_and_customer(
     team_id: str,
     customer_id: str,
     prisma_client: PrismaClient,
+    exclude_team_models: bool = False,
 ):
-    sql_query = """
+    exclusion_sql = team_model_exclusion_clause(exclude_team_models)
+    sql_query = f"""
     WITH SpendByModelApiKey AS (
         SELECT
             date_trunc('day', sl."startTime") AS group_by_day,
@@ -605,7 +629,7 @@ async def get_spend_by_team_and_customer(
             sl."startTime" >= ($1::timestamptz AT TIME ZONE 'UTC')
             AND sl."startTime" <  (($2::timestamptz + INTERVAL '1 day') AT TIME ZONE 'UTC')
             AND sl.team_id = $3
-            AND sl.end_user = $4
+            AND sl.end_user = $4{exclusion_sql}
         GROUP BY
             date_trunc('day', sl."startTime"),
             tt.team_alias,
diff --git a/tests/test_litellm/proxy/spend_tracking/test_spend_query_optimization.py b/tests/test_litellm/proxy/spend_tracking/test_spend_query_optimization.py
index 19083486974..4b8903c973f 100644
--- a/tests/test_litellm/proxy/spend_tracking/test_spend_query_optimization.py
+++ b/tests/test_litellm/proxy/spend_tracking/test_spend_query_optimization.py
@@ -502,3 +502,163 @@ async def test_global_spend_report_team_group_forwards_team_id(monkeypatch):
     params = mock_prisma.db.query_raw.call_args[0][1:]
     assert "team_x" in params, "team_id must be forwarded into the DB query params"
     assert "sl.team_id = $3" in sql, f"team query must filter on team_id. SQL was:\n{sql}"
+
+
+_OMITTED = object()
+
+_EXCLUSION_PREDICATE = (
+    '\n            AND NOT EXISTS (SELECT 1 FROM "LiteLLM_ProxyModelTable" pm '
+    "WHERE pm.model_id = sl.model_id AND pm.model_info ->> 'team_id' IS NOT NULL)"
+)
+
+_REPORT_BRANCHES = {
+    "api_key_filter": {"api_key": "sk-1234"},
+    "internal_user_id_filter": {"internal_user_id": "user-1"},
+    "team_and_customer_filter": {"team_id": "team-1", "customer_id": "cust-1"},
+    "group_by_team": {"group_by": "team"},
+    "group_by_customer": {"group_by": "customer"},
+    "group_by_api_key": {"group_by": "api_key"},
+}
+
+
+async def _capture_report_sql(monkeypatch, branch_kwargs, exclude_team_models):
+    """
+    Run GET /global/spend/report for one branch and return the SQL it executed.
+
+    group_by is always passed explicitly because the priority chain (api_key ->
+    internal_user_id -> team+customer -> group_by) reads the raw arguments; `_OMITTED`
+    calls the endpoint the way every caller predating the flag does, with no keyword.
+    """
+    from litellm.proxy.spend_tracking.spend_management_endpoints import (
+        get_global_spend_report,
+    )
+
+    mock_prisma = MagicMock()
+    mock_prisma.db = MagicMock()
+    mock_prisma.db.query_raw = AsyncMock(return_value=[])
+
+    monkeypatch.setattr("litellm.proxy.proxy_server.prisma_client", mock_prisma)
+    monkeypatch.setattr("litellm.proxy.proxy_server.premium_user", True)
+
+    await get_global_spend_report(
+        **{
+            "start_date": "2026-07-01",
+            "end_date": "2026-07-03",
+            "group_by": "team",
+            "api_key": None,
+            "internal_user_id": None,
+            "team_id": None,
+            "customer_id": None,
+            **branch_kwargs,
+            **({} if exclude_team_models is _OMITTED else {"exclude_team_models": exclude_team_models}),
+        }
+    )
+
+    assert mock_prisma.db.query_raw.called, "query_raw should have been called"
+    return mock_prisma.db.query_raw.call_args[0][0]
+
+
+@pytest.mark.parametrize("branch", sorted(_REPORT_BRANCHES))
+@pytest.mark.asyncio
+async def test_global_spend_report_excludes_team_models_when_opted_in(monkeypatch, branch):
+    """
+    Every branch must honor the flag, not just the default group_by=team one. Non-team rows
+    survive the anti-join either with no "LiteLLM_ProxyModelTable" match (config models log a
+    router-generated hash id) or with a match carrying no model_info.team_id.
+    `_EXCLUSION_PREDICATE` pins the clause's exact leading whitespace and is spelled out
+    rather than imported, so a mutated production clause fails here.
+    """
+    sql = await _capture_report_sql(monkeypatch, _REPORT_BRANCHES[branch], exclude_team_models=True)
+
+    assert _EXCLUSION_PREDICATE in sql, f"{branch} must exclude team deployments. SQL was:\n{sql}"
+    assert sql.index(_EXCLUSION_PREDICATE) < sql.index("GROUP BY"), (
+        f"the exclusion must sit in the WHERE clause of the SpendLogs CTE, before its GROUP BY. SQL was:\n{sql}"
+    )
+    assert "NOT EXISTS" in sql and "IN (SELECT" not in sql, (
+        f"an anti-join (NOT EXISTS) keeps rows with an empty model_id; a subquery IN would drop them. SQL was:\n{sql}"
+    )
+
+
+@pytest.mark.parametrize("branch", sorted(_REPORT_BRANCHES))
+@pytest.mark.parametrize("exclude_team_models", [False, _OMITTED], ids=["explicit_false", "omitted"])
+@pytest.mark.asyncio
+async def test_global_spend_report_keeps_team_models_by_default(monkeypatch, branch, exclude_team_models):
+    """
+    Opt-in only: with the flag off (or absent) the executed SQL must be exactly what it
+    was before the flag existed, so existing /global/spend/report consumers see no change.
+    """
+    sql = await _capture_report_sql(monkeypatch, _REPORT_BRANCHES[branch], exclude_team_models=exclude_team_models)
+
+    assert "LiteLLM_ProxyModelTable" not in sql, f"{branch} must not touch the model table by default. SQL was:\n{sql}"
+    assert "NOT EXISTS" not in sql, f"{branch} must not filter deployments by default. SQL was:\n{sql}"
+
+    opted_in = await _capture_report_sql(monkeypatch, _REPORT_BRANCHES[branch], exclude_team_models=True)
+    assert opted_in.replace(_EXCLUSION_PREDICATE, "") == sql, (
+        f"the flag must only add the exclusion predicate, nothing else. SQL was:\n{sql}"
+    )
+
+
+def test_global_spend_report_binds_exclude_team_models_from_query_string(monkeypatch):
+    """
+    Calling the endpoint function directly cannot catch a binding regression, so drive the
+    real route once: `?exclude_team_models=true` has to reach the query builder as a bool.
+    """
+    import litellm.proxy.proxy_server as ps
+    from fastapi.testclient import TestClient
+
+    from litellm.proxy._types import LitellmUserRoles, UserAPIKeyAuth
+    from litellm.proxy.proxy_server import app
+
+    mock_prisma = MagicMock()
+    mock_prisma.db = MagicMock()
+    mock_prisma.db.query_raw = AsyncMock(return_value=[])
+
+    monkeypatch.setattr("litellm.proxy.proxy_server.prisma_client", mock_prisma)
+    monkeypatch.setattr("litellm.proxy.proxy_server.premium_user", True)
+
+    app.dependency_overrides[ps.user_api_key_auth] = lambda: UserAPIKeyAuth(
+        user_role=LitellmUserRoles.PROXY_ADMIN,
+        user_id="admin",
+    )
+    try:
+        client = TestClient(app)
+        params = {"start_date": "2026-07-01", "end_date": "2026-07-03", "group_by": "team"}
+
+        response = client.get("/global/spend/report", params={**params, "exclude_team_models": "true"})
+        assert response.status_code == 200, response.text
+        assert _EXCLUSION_PREDICATE in mock_prisma.db.query_raw.call_args[0][0]
+
+        response = client.get("/global/spend/report", params=params)
+        assert response.status_code == 200, response.text
+        assert _EXCLUSION_PREDICATE not in mock_prisma.db.query_raw.call_args[0][0]
+    finally:
+        app.dependency_overrides.pop(ps.user_api_key_auth, None)
+
+
+@pytest.mark.asyncio
+async def test_spend_by_team_helpers_default_to_including_team_models():
+    """
+    Both helpers are public and called positionally elsewhere; the new keyword must
+    default to off and only add the exclusion when a caller asks for it.
+    """
+    mock_prisma = MagicMock()
+    mock_prisma.db = MagicMock()
+    mock_query_raw = AsyncMock(return_value=[])
+    mock_prisma.db.query_raw = mock_query_raw
+
+    start_date = datetime.datetime(2024, 1, 1, tzinfo=timezone.utc)
+    end_date = datetime.datetime(2024, 1, 31, tzinfo=timezone.utc)
+
+    await get_spend_by_team(start_date, end_date, "team-1", mock_prisma)
+    assert "LiteLLM_ProxyModelTable" not in mock_query_raw.call_args[0][0]
+
+    await get_spend_by_team_and_customer(start_date, end_date, "team-1", "cust-1", mock_prisma)
+    assert "LiteLLM_ProxyModelTable" not in mock_query_raw.call_args[0][0]
+
+    await get_spend_by_team(start_date, end_date, "team-1", mock_prisma, exclude_team_models=True)
+    assert _EXCLUSION_PREDICATE in mock_query_raw.call_args[0][0]
+
+    await get_spend_by_team_and_customer(
+        start_date, end_date, "team-1", "cust-1", mock_prisma, exclude_team_models=True
+    )
+    assert _EXCLUSION_PREDICATE in mock_query_raw.call_args[0][0]
diff --git a/ui/litellm-dashboard/src/lib/http/schema.d.ts b/ui/litellm-dashboard/src/lib/http/schema.d.ts
index 9a33a6bd758..ccc7b678330 100644
--- a/ui/litellm-dashboard/src/lib/http/schema.d.ts
+++ b/ui/litellm-dashboard/src/lib/http/schema.d.ts
@@ -41045,6 +41045,8 @@ export interface operations {
                 team_id?: string | null;
                 /** @description View spend for a specific customer_id. Example customer_id='1234. Can be used in conjunction with team_id as well. */
                 customer_id?: string | null;
+                /** @description When True, exclude spend from team-owned (BYOK) model deployments. Spend from deployments that have since been deleted cannot be classified and remains included */
+                exclude_team_models?: boolean;
             };
             header?: never;
             path?: never;