diff --git a/api/blueprints/finstitutions/payments/callback.py b/api/blueprints/finstitutions/payments/callback.py
index 439e511..600956a 100644
--- a/api/blueprints/finstitutions/payments/callback.py
+++ b/api/blueprints/finstitutions/payments/callback.py
@@ -214,6 +214,7 @@ async def safaricom_m_pesa_express_callback(
             paymentStatus = relevant_code["status"],
             message = relevant_code["message"],
             initByPG = True,
+            ipAddr = inbound_headers["Remote-IP"],
             httpCode = None,
             headers = inbound_headers,
             payload = inbound_data
diff --git a/models/core/payment.py b/models/core/payment.py
index 4610e9c..21b07a4 100644
--- a/models/core/payment.py
+++ b/models/core/payment.py
@@ -168,6 +168,12 @@ class PaymentEvent(BaseModel):
         frozen = True
     )
 
+    ipAddr: str | None = Field(
+        description = "if initiated by the payment gateway, what ip addr did this request come from",
+        frozen = True,
+        default = None
+    )
+
     httpCode: int | None = Field(
         description = "the http code generated by the event",
         frozen = True,