diff --git a/litellm/proxy/management_endpoints/team_endpoints.py b/litellm/proxy/management_endpoints/team_endpoints.py
index 249cfdae4eb..bb5d5b119ab 100644
--- a/litellm/proxy/management_endpoints/team_endpoints.py
+++ b/litellm/proxy/management_endpoints/team_endpoints.py
@@ -83,6 +83,7 @@ from litellm.proxy.management_endpoints.common_utils import (
     _update_metadata_fields,
     _upsert_budget_and_membership,
     _user_has_admin_view,
+    validate_finite_spend,
 )
 from litellm.proxy.management_endpoints.organization_endpoints import (
     add_member_to_organization,
@@ -2926,6 +2927,8 @@ async def team_member_update(
         )
 
     _validate_budget_duration(data.budget_duration)
+    # Reject NaN/±inf spend before it can reach the DB / spend counter.
+    validate_finite_spend(data.spend)
 
     _existing_team_row = await TeamRepository(prisma_client).table.find_unique(
         where={"team_id": data.team_id}
@@ -3013,6 +3016,36 @@ async def team_member_update(
             team_default_budget_id=team_default_budget_id,
         )
 
+    ### reset member spend
+    # spend lives on LiteLLM_TeamMembership, not the budget table that
+    # _upsert_budget_and_membership writes, so persist it directly. Use an
+    # upsert: a spend-only request produces an empty budget_patch, so the
+    # membership row is not guaranteed to exist after the call above. Written
+    # outside the budget tx and followed by a counter invalidation so
+    # enforcement re-reads the new value (reseed-from-DB).
+    if data.spend is not None:
+        await prisma_client.db.litellm_teammembership.upsert(
+            where={
+                "user_id_team_id": {
+                    "user_id": received_user_id,
+                    "team_id": data.team_id,
+                }
+            },
+            data={
+                "create": {
+                    "user_id": received_user_id,
+                    "team_id": data.team_id,
+                    "spend": data.spend,
+                },
+                "update": {"spend": data.spend},
+            },
+        )
+        from litellm.proxy.proxy_server import _invalidate_spend_counter
+
+        await _invalidate_spend_counter(
+            counter_key=f"spend:team_member:{received_user_id}:{data.team_id}"
+        )
+
     ### update team member role
     if data.role is not None:
         team_members: List[Member] = []
@@ -3045,6 +3078,7 @@ async def team_member_update(
         rpm_limit=data.rpm_limit,
         budget_duration=data.budget_duration,
         allowed_models=data.allowed_models,
+        spend=data.spend,
     )
 
 
diff --git a/tests/test_litellm/proxy/test_team_member_update.py b/tests/test_litellm/proxy/test_team_member_update.py
index 1a11deb6403..fb743002afb 100644
--- a/tests/test_litellm/proxy/test_team_member_update.py
+++ b/tests/test_litellm/proxy/test_team_member_update.py
@@ -157,6 +157,77 @@ async def test_team_member_update_omits_unset_fields_from_patch(happy_path_upser
     assert happy_path_upsert.await_args.kwargs["budget_patch"] == {}
 
 
+@pytest.mark.asyncio
+async def test_team_member_update_spend_writes_membership_and_invalidates(
+    happy_path_upsert, monkeypatch
+):
+    """A `spend` value resets LiteLLM_TeamMembership.spend (upsert, since the
+    row may not exist) and invalidates the cross-pod team-member counter."""
+    prisma_client = proxy_server.prisma_client
+    membership_upsert = AsyncMock()
+    prisma_client.db.litellm_teammembership.upsert = membership_upsert
+    invalidate = AsyncMock()
+    monkeypatch.setattr(proxy_server, "_invalidate_spend_counter", invalidate)
+
+    data, request, auth = _member_update_request(spend=0.0)
+
+    response = await team_member_update(data, request, auth)
+
+    membership_upsert.assert_awaited_once()
+    kwargs = membership_upsert.await_args.kwargs
+    assert kwargs["where"] == {
+        "user_id_team_id": {"user_id": "user-1", "team_id": "team-1234"}
+    }
+    assert kwargs["data"]["update"] == {"spend": 0.0}
+    assert kwargs["data"]["create"]["spend"] == 0.0
+    invalidate.assert_awaited_once_with(
+        counter_key="spend:team_member:user-1:team-1234"
+    )
+    assert response.spend == 0.0
+
+
+@pytest.mark.asyncio
+async def test_team_member_update_rejects_non_finite_spend(
+    happy_path_upsert, monkeypatch
+):
+    """NaN/inf spend is rejected with 400 before any membership write or
+    counter invalidation."""
+    prisma_client = proxy_server.prisma_client
+    membership_upsert = AsyncMock()
+    prisma_client.db.litellm_teammembership.upsert = membership_upsert
+    invalidate = AsyncMock()
+    monkeypatch.setattr(proxy_server, "_invalidate_spend_counter", invalidate)
+
+    data, request, auth = _member_update_request(spend=float("inf"))
+
+    with pytest.raises(HTTPException) as exc_info:
+        await team_member_update(data, request, auth)
+
+    assert exc_info.value.status_code == 400
+    membership_upsert.assert_not_called()
+    invalidate.assert_not_awaited()
+
+
+@pytest.mark.asyncio
+async def test_team_member_update_without_spend_skips_membership_write(
+    happy_path_upsert, monkeypatch
+):
+    """A budget-only update must not touch the membership spend row or the
+    counter."""
+    prisma_client = proxy_server.prisma_client
+    membership_upsert = AsyncMock()
+    prisma_client.db.litellm_teammembership.upsert = membership_upsert
+    invalidate = AsyncMock()
+    monkeypatch.setattr(proxy_server, "_invalidate_spend_counter", invalidate)
+
+    data, request, auth = _member_update_request(max_budget_in_team=10.0)
+
+    await team_member_update(data, request, auth)
+
+    membership_upsert.assert_not_called()
+    invalidate.assert_not_awaited()
+
+
 @pytest.mark.parametrize(
     "bad_duration",
     [