diff --git a/permit/api/base.py b/permit/api/base.py
index f7fb517..faaabc9 100644
--- a/permit/api/base.py
+++ b/permit/api/base.py
@@ -163,8 +163,12 @@ def __init__(self, config: PermitConfig):
 
     def _build_http_client(self, endpoint_url: str = "", *, use_pdp: bool = False, **kwargs):
         optional_headers = {}
-        if self.config.proxy_facts_via_pdp and self.config.facts_sync_timeout:
-            optional_headers["X-Wait-Timeout"] = str(self.config.facts_sync_timeout)
+        if self.config.proxy_facts_via_pdp:
+            if self.config.facts_sync_timeout:
+                optional_headers["X-Wait-Timeout"] = str(self.config.facts_sync_timeout)
+            if self.config.facts_sync_timeout_policy:
+                optional_headers["X-Timeout-Policy"] = str(self.config.facts_sync_timeout_policy)
+
         client_config = ClientConfig(
             base_url=self.config.pdp if use_pdp else self.config.api_url,
             headers={
diff --git a/permit/config.py b/permit/config.py
index cc65923..f1d4fe7 100644
--- a/permit/config.py
+++ b/permit/config.py
@@ -1,4 +1,4 @@
-from typing import Optional
+from typing import Literal, Optional
 
 from .api.context import ApiContext
 from .utils.pydantic_version import PYDANTIC_VERSION
@@ -68,6 +68,10 @@ class PermitConfig(BaseModel):
         description="The amount of time in seconds to wait for facts to be available "
         "in the PDP cache before returning the response.",
     )
+    facts_sync_timeout_policy: Optional[Literal["ignore", "fail"]] = Field(
+        default=None,
+        description="The policy to apply when the facts sync timeout is reached.",
+    )
 
     class Config:
         arbitrary_types_allowed = True
diff --git a/permit/permit.py b/permit/permit.py
index b5025c8..56b1b29 100644
--- a/permit/permit.py
+++ b/permit/permit.py
@@ -1,6 +1,6 @@
 import json
 from contextlib import contextmanager
-from typing import Any, Dict, Generator, List, Optional
+from typing import Any, Dict, Generator, List, Literal, Optional
 
 from loguru import logger
 from typing_extensions import Self
@@ -49,7 +49,9 @@ def config(self):
         return self._config.copy()
 
     @contextmanager
-    def wait_for_sync(self, timeout: float = 10.0) -> Generator[Self, None, None]:
+    def wait_for_sync(
+        self, timeout: float = 10.0, policy: Optional[Literal["ignore", "fail"]] = None
+    ) -> Generator[Self, None, None]:
         """
         Context manager that returns a client that is configured
         to wait for facts to be synced before proceeding.
@@ -58,6 +60,9 @@ def wait_for_sync(self, timeout: float = 10.0) -> Generator[Self, None, None]:
         Args:
             timeout: The amount of time in seconds to wait for facts to be available in the PDP
             cache before returning the response.
+            policy: Weather to fail the request when the timeout is reached or ignore.
+
+            Set None to keep the default policy set in the instance config or the default value of PDP.
 
         Yields:
             Permit: A Permit instance that is configured to wait for facts to be synced.
@@ -71,6 +76,8 @@ def wait_for_sync(self, timeout: float = 10.0) -> Generator[Self, None, None]:
             return
         contextualized_config = self.config  # this copies the config
         contextualized_config.facts_sync_timeout = timeout
+        if policy is not None:
+            contextualized_config.facts_sync_timeout_policy = policy
         yield self.__class__(contextualized_config)
 
     @property