diff --git a/accounting/decorators.py b/accounting/decorators.py
new file mode 100644
index 0000000000000000000000000000000000000000..6e5c1de6e8bc1d9971931872d122afb8a01b963d
--- /dev/null
+++ b/accounting/decorators.py
@@ -0,0 +1,20 @@
+from functools import wraps
+
+from flask import jsonify
+
+from accounting.exceptions import AccountingException
+
+
+def jsonify_exceptions(func):
+    '''
+    Wraps a Flask endpoint and catches any AccountingException-based
+    exceptions which are returned to the client as JSON.
+    '''
+    @wraps(func)
+    def wrapper(*args, **kw):
+        try:
+            return func(*args, **kw)
+        except AccountingException as exc:
+            return jsonify(error=exc)
+
+    return wrapper