diff --git a/src/exceptions.py b/src/exceptions.py
new file mode 100644
index 0000000..b6f6afa
--- /dev/null
+++ b/src/exceptions.py
@@ -0,0 +1,14 @@
+class UOWSError(Exception):
+    """Problem authenticating with the user office web service"""
+
+
+class ProposalAllocationsError(Exception):
+    """Problem connecting with the proposal allocations api"""
+
+
+class BadCredentialsError(Exception):
+    """ "Bad Credentials Provided"""
+
+
+class BadJWTError(Exception):
+    """Raised when a bad jwt has been given to the service"""