diff --git a/g2p_registry_base/models/reg_id.py b/g2p_registry_base/models/reg_id.py
index ab05f1b4..567126ac 100644
--- a/g2p_registry_base/models/reg_id.py
+++ b/g2p_registry_base/models/reg_id.py
@@ -3,6 +3,7 @@
 import re
 
 from odoo import api, fields, models
+from odoo.exceptions import ValidationError
 
 
 class G2PRegistrantID(models.Model):
@@ -67,4 +68,3 @@ class G2PIDType(models.Model):
             "Name of the ID types should be unique",
         ),
     ]
-
diff --git a/g2p_registry_rest_api/models/registrant.py b/g2p_registry_rest_api/models/registrant.py
index 1c89cfe0..2c6bfd46 100644
--- a/g2p_registry_rest_api/models/registrant.py
+++ b/g2p_registry_rest_api/models/registrant.py
@@ -80,6 +80,22 @@ def validate_id_type_no_spaces(cls, value):  # noqa: B902
             )
         return value
 
+    @validator("value")
+    def validate_id_value(cls, value, values):
+        id_type = values.get("id_type")
+        if id_type:
+            id_type_id = request.env["g2p.id.type"].search(
+                [("name", "=", id_type)], limit=1
+            )
+            if not re.match(id_type_id.id_validation, value):
+                raise G2PApiValidationError(
+                    error_message=G2PErrorCodes.G2P_REQ_005.get_error_message(),
+                    error_code=G2PErrorCodes.G2P_REQ_005.get_error_code(),
+                    error_description=f"The provided {id_type_id.name} ID '{value}' is invalid.",
+                )
+
+        return value
+
 
 class RegistrantInfoIn(NaiveOrmModel):
     name: str