diff --git a/bemani/common/__init__.py b/bemani/common/__init__.py
index ad4ebd5..fc6d207 100644
--- a/bemani/common/__init__.py
+++ b/bemani/common/__init__.py
@@ -9,7 +9,7 @@ from bemani.common.constants import (
     BroadcastConstants,
     RegionConstants,
 )
-from bemani.common.card import CardCipher, CardCipherException
+from bemani.common.card import CardCipher, CardCipherException, decode_user_provided
 from bemani.common.decorators import debugonly
 from bemani.common.id import ID
 from bemani.common.aes import AESCipher
@@ -41,5 +41,6 @@ __all__ = [
     "InvalidOffsetException",
     "cache",
     "debugonly",
+    "decode_user_provided",
     "format_recovery_link",
 ]
diff --git a/bemani/common/card.py b/bemani/common/card.py
index 1cbfc26..2d5e0ab 100644
--- a/bemani/common/card.py
+++ b/bemani/common/card.py
@@ -1,7 +1,10 @@
-from typing import Dict, Final, List
+from typing import Dict, Final, List, TYPE_CHECKING
 
 from Crypto.Cipher import DES3
 
+if TYPE_CHECKING:
+    from bemani.data import Config
+
 
 class CardCipherException(Exception):
     pass
@@ -174,3 +177,17 @@ class CardCipher:
             checksum = sum(divmod(checksum, 0x20))
 
         return checksum
+
+
+def decode_user_provided(config: "Config", cardid: str) -> str:
+    # First, try to decode the card ID as if it was encoded.
+    try:
+        return CardCipher.decode(cardid)
+    except CardCipherException:
+        if not config.server.allow_raw_ids:
+            raise
+
+    # Now, assume it is already raw. We round trip it because
+    # this will check for ID validity even with the raw ID.
+    enc = CardCipher.encode(cardid)
+    return CardCipher.decode(enc)
diff --git a/bemani/data/config.py b/bemani/data/config.py
index 67f4722..f2af3e0 100644
--- a/bemani/data/config.py
+++ b/bemani/data/config.py
@@ -79,6 +79,10 @@ class Server:
     def pcbid_self_grant_limit(self) -> int:
         return int(self.__config.get("server", {}).get("pcbid_self_grant_limit", 0))
 
+    @property
+    def allow_raw_ids(self) -> bool:
+        return bool(self.__config.get("server", {}).get("allow_raw_ids", False))
+
     @property
     def region(self) -> int:
         region = int(self.__config.get("server", {}).get("region", RegionConstants.USA))
diff --git a/bemani/frontend/account/account.py b/bemani/frontend/account/account.py
index ba2de03..91af600 100644
--- a/bemani/frontend/account/account.py
+++ b/bemani/frontend/account/account.py
@@ -9,7 +9,7 @@ from flask import (
     render_template,
 )
 
-from bemani.common import CardCipher, CardCipherException, AESCipher, Time
+from bemani.common import CardCipher, CardCipherException, AESCipher, Time, decode_user_provided
 from bemani.frontend.app import (
     loginrequired,
     loginprohibited,
@@ -114,7 +114,7 @@ def recover() -> Response:
     elif card_number:
         # First, try to convert the card to a valid E004 ID
         try:
-            cardid = CardCipher.decode(card_number)
+            cardid = decode_user_provided(g.config, card_number)
         except CardCipherException:
             error("Invalid card number!")
             return recover_display(username, token, card_number)
@@ -197,7 +197,7 @@ def register() -> Response:
 
     # First, try to convert the card to a valid E004 ID
     try:
-        cardid = CardCipher.decode(card_number)
+        cardid = decode_user_provided(g.config, card_number)
     except CardCipherException:
         error("Invalid card number!")
         return register_display(card_number, username, email)
@@ -335,7 +335,7 @@ def addcard() -> Dict[str, Any]:
     # Grab card, convert it
     card = request.get_json()["card"]
     try:
-        cardid = CardCipher.decode(card)
+        cardid = decode_user_provided(g.config, card)
     except CardCipherException:
         raise Exception("Invalid card number!")
 
@@ -361,7 +361,7 @@ def removecard() -> Dict[str, Any]:
     # Grab card, convert it
     card = request.get_json()["card"]
     try:
-        cardid = CardCipher.decode(card)
+        cardid = decode_user_provided(g.config, card)
     except CardCipherException:
         raise Exception("Invalid card number!")
 
diff --git a/bemani/frontend/admin/admin.py b/bemani/frontend/admin/admin.py
index be9a1ec..6d947d0 100644
--- a/bemani/frontend/admin/admin.py
+++ b/bemani/frontend/admin/admin.py
@@ -11,6 +11,7 @@ from bemani.common import (
     ValidatedDict,
     Profile,
     ID,
+    decode_user_provided,
     format_recovery_link,
 )
 from bemani.data import Arcade, Machine, User, UserID, News, Event, Server, Client
@@ -816,7 +817,7 @@ def removecard() -> Dict[str, Any]:
     # Grab card, convert it
     card = request.get_json()["card"]
     try:
-        cardid = CardCipher.decode(card)
+        cardid = decode_user_provided(g.config, card)
     except CardCipherException:
         raise Exception("Invalid card number!")
 
@@ -839,7 +840,7 @@ def addcard() -> Dict[str, Any]:
     # Grab card, convert it
     card = request.get_json()["card"]
     try:
-        cardid = CardCipher.decode(card["number"])
+        cardid = decode_user_provided(g.config, card["number"])
     except CardCipherException:
         raise Exception("Invalid card number!")
 
@@ -1098,7 +1099,7 @@ def removeusercard(userid: int) -> Dict[str, Any]:
     # Grab card, convert it
     card = request.get_json()["card"]
     try:
-        cardid = CardCipher.decode(card)
+        cardid = decode_user_provided(g.config, card)
     except CardCipherException:
         raise Exception("Invalid card number!")
     user = g.data.local.user.get_user(userid)
@@ -1153,7 +1154,7 @@ def addusercard(userid: int) -> Dict[str, Any]:
     # Grab card, convert it
     card = request.get_json()["card"]
     try:
-        cardid = CardCipher.decode(card)
+        cardid = decode_user_provided(g.config, card)
     except CardCipherException:
         raise Exception("Invalid card number!")
     user = g.data.local.user.get_user(userid)
diff --git a/bemani/frontend/arcade/arcade.py b/bemani/frontend/arcade/arcade.py
index a7249a2..ee6825b 100644
--- a/bemani/frontend/arcade/arcade.py
+++ b/bemani/frontend/arcade/arcade.py
@@ -4,11 +4,11 @@ from flask import Blueprint, request, Response, abort, url_for
 
 from bemani.backend.base import Base
 from bemani.common import (
-    CardCipher,
     CardCipherException,
     ValidatedDict,
     GameConstants,
     RegionConstants,
+    decode_user_provided,
 )
 from bemani.data import Arcade, ArcadeID, Event, Machine
 from bemani.frontend.app import loginrequired, jsonify, render_react, valid_pin
@@ -186,7 +186,7 @@ def addbalance(arcadeid: int) -> Dict[str, Any]:
         raise Exception("You don't own this arcade, refusing to update!")
 
     try:
-        cardid = CardCipher.decode(card)
+        cardid = decode_user_provided(g.config, card)
         userid = g.data.local.user.from_cardid(cardid)
     except CardCipherException:
         userid = None
diff --git a/config/server.yaml b/config/server.yaml
index 897904f..cac384e 100644
--- a/config/server.yaml
+++ b/config/server.yaml
@@ -36,6 +36,11 @@ server:
     # page. Note that this setting is irrelevant if PCBID enforcing is off.
     # Set to 0 or delete this setting to disable self-granting PCBIDs.
     pcbid_self_grant_limit: 0
+    # Whether frontend text boxes that accept a Card ID will accept a raw ID
+    # starting with E004 or 0XXX. With this enabled, while the frontend will
+    # still display Card IDs as they appear in-game and on the back of actual
+    # cards, users can type in the raw ID as a convenience.
+    allow_raw_ids: False
     # Default region for this network (set to USA by default). See RegionConstants
     # for details on acceptible values. The range of accepted values is 1-56 matching
     # the 56 normal regions found in RegionConstants, and 1000 for "Europe" and