diff --git a/auditui/configure.py b/auditui/configure.py
new file mode 100644
index 0000000..2f7cbf6
--- /dev/null
+++ b/auditui/configure.py
@@ -0,0 +1,40 @@
+"""Configuration helpers for the Auditui app."""
+
+from getpass import getpass
+from pathlib import Path
+from typing import Tuple
+
+import audible
+
+from .constants import AUTH_PATH
+
+
+def configure(
+    auth_path: Path = AUTH_PATH,
+) -> Tuple[audible.Authenticator, audible.Client]:
+    """Force re-authentication and save credentials."""
+    if auth_path.exists():
+        response = input(
+            "Configuration already exists. Are you sure you want to overwrite it? (y/N): "
+        ).strip().lower()
+        if response not in ("yes", "y"):
+            print("Configuration cancelled.")
+            raise SystemExit(0)
+
+    print("Please authenticate with your Audible account.")
+
+    email = input("\nEmail: ")
+    password = getpass("Password: ")
+    marketplace = input(
+        "Marketplace locale (default: US): ").strip().upper() or "US"
+
+    authenticator = audible.Authenticator.from_login(
+        username=email, password=password, locale=marketplace
+    )
+
+    auth_path.parent.mkdir(parents=True, exist_ok=True)
+    authenticator.to_file(str(auth_path))
+    print("Authentication successful!")
+    audible_client = audible.Client(auth=authenticator)
+    return authenticator, audible_client
+