diff --git a/app/services/audit_service.py b/app/services/audit_service.py
new file mode 100644
index 0000000..b9eaa1b
--- /dev/null
+++ b/app/services/audit_service.py
@@ -0,0 +1,16 @@
+from db import SessionLocal
+from models import AuditTrail
+from datetime import datetime
+
+class AuditService:
+    def log(self, user_email: str, action: str, details: dict):
+        db = SessionLocal()
+        entry = AuditTrail(
+            user_email=user_email,
+            action=action,
+            details=str(details),
+            timestamp=datetime.utcnow()
+        )
+        db.add(entry)
+        db.commit()
+        db.close()