diff --git a/rattail_corepos/config.py b/rattail_corepos/config.py
index 8001866..1e3e9e9 100644
--- a/rattail_corepos/config.py
+++ b/rattail_corepos/config.py
@@ -62,3 +62,14 @@ def core_office_url(config, require=False, **kwargs):
         url = config.get(*args, **kwargs)
         if url:
             return url.rstrip('/')
+
+
+def core_office_customer_account_url(config, card_number, office_url=None):
+    """
+    Returns the CORE Office URL for the customer account with the given card
+    number.
+    """
+    if not office_url:
+        office_url = core_office_url(config, require=True)
+    return '{}/mem/MemberEditor.php?memNum={}'.format(
+        office_url, card_number)