diff --git a/zerver/lib/actions.py b/zerver/lib/actions.py
index 47c2792d5c..a4c7d92d92 100644
--- a/zerver/lib/actions.py
+++ b/zerver/lib/actions.py
@@ -3305,16 +3305,19 @@ def do_change_plan_type(realm: Realm, plan_type: int) -> None:
     if plan_type == Realm.STANDARD:
         realm.max_invites = Realm.INVITES_STANDARD_REALM_DAILY_MAX
         realm.message_visibility_limit = None
+        realm.upload_quota_gb = Realm.UPLOAD_QUOTA_STANDARD
     elif plan_type == Realm.STANDARD_FREE:
         realm.max_invites = Realm.INVITES_STANDARD_REALM_DAILY_MAX
         realm.message_visibility_limit = None
+        realm.upload_quota_gb = Realm.UPLOAD_QUOTA_STANDARD
     elif plan_type == Realm.LIMITED:
         realm.max_invites = settings.INVITES_DEFAULT_REALM_DAILY_MAX
         realm.message_visibility_limit = Realm.MESSAGE_VISIBILITY_LIMITED
+        realm.upload_quota_gb = Realm.UPLOAD_QUOTA_LIMITED
 
     update_first_visible_message_id(realm)
 
-    realm.save(update_fields=['_max_invites', 'message_visibility_limit'])
+    realm.save(update_fields=['_max_invites', 'message_visibility_limit', 'upload_quota_gb'])
 
 def do_change_default_sending_stream(user_profile: UserProfile, stream: Optional[Stream],
                                      log: bool=True) -> None:
diff --git a/zerver/models.py b/zerver/models.py
index 85f9fa212e..a54a1b230a 100644
--- a/zerver/models.py
+++ b/zerver/models.py
@@ -255,6 +255,8 @@ class Realm(models.Model):
     bot_creation_policy = models.PositiveSmallIntegerField(default=BOT_CREATION_EVERYONE)  # type: int
 
     # See upload_quota_bytes; don't interpret upload_quota_gb directly.
+    UPLOAD_QUOTA_LIMITED = 5
+    UPLOAD_QUOTA_STANDARD = 50
     upload_quota_gb = models.IntegerField(null=True)  # type: Optional[int]
 
     video_chat_provider = models.CharField(default=u"Jitsi", max_length=MAX_VIDEO_CHAT_PROVIDER_LENGTH)
diff --git a/zerver/tests/test_realm.py b/zerver/tests/test_realm.py
index 158035cede..967fd00916 100644
--- a/zerver/tests/test_realm.py
+++ b/zerver/tests/test_realm.py
@@ -482,32 +482,38 @@ class RealmTest(ZulipTestCase):
             self.assertEqual(do_create_realm('hosted', 'hosted').plan_type, Realm.LIMITED)
             self.assertEqual(get_realm("hosted").max_invites, settings.INVITES_DEFAULT_REALM_DAILY_MAX)
             self.assertEqual(get_realm("hosted").message_visibility_limit, Realm.MESSAGE_VISIBILITY_LIMITED)
+            self.assertEqual(get_realm("hosted").upload_quota_gb, Realm.UPLOAD_QUOTA_LIMITED)
 
         with self.settings(BILLING_ENABLED=False):
             self.assertEqual(do_create_realm('onpremise', 'onpremise').plan_type, Realm.SELF_HOSTED)
             self.assertEqual(get_realm('onpremise').max_invites, settings.INVITES_DEFAULT_REALM_DAILY_MAX)
             self.assertEqual(get_realm('onpremise').message_visibility_limit, None)
+            self.assertEqual(get_realm("onpremise").upload_quota_gb, None)
 
     def test_change_plan_type(self) -> None:
         realm = get_realm('zulip')
         self.assertEqual(realm.plan_type, Realm.SELF_HOSTED)
         self.assertEqual(realm.max_invites, settings.INVITES_DEFAULT_REALM_DAILY_MAX)
         self.assertEqual(realm.message_visibility_limit, None)
+        self.assertEqual(realm.upload_quota_gb, None)
 
         do_change_plan_type(realm, Realm.STANDARD)
         realm = get_realm('zulip')
         self.assertEqual(realm.max_invites, Realm.INVITES_STANDARD_REALM_DAILY_MAX)
         self.assertEqual(realm.message_visibility_limit, None)
+        self.assertEqual(realm.upload_quota_gb, Realm.UPLOAD_QUOTA_STANDARD)
 
         do_change_plan_type(realm, Realm.LIMITED)
         realm = get_realm('zulip')
         self.assertEqual(realm.max_invites, settings.INVITES_DEFAULT_REALM_DAILY_MAX)
         self.assertEqual(realm.message_visibility_limit, Realm.MESSAGE_VISIBILITY_LIMITED)
+        self.assertEqual(realm.upload_quota_gb, Realm.UPLOAD_QUOTA_LIMITED)
 
         do_change_plan_type(realm, Realm.STANDARD_FREE)
         realm = get_realm('zulip')
         self.assertEqual(realm.max_invites, Realm.INVITES_STANDARD_REALM_DAILY_MAX)
         self.assertEqual(realm.message_visibility_limit, None)
+        self.assertEqual(realm.upload_quota_gb, Realm.UPLOAD_QUOTA_STANDARD)
 
 class RealmAPITest(ZulipTestCase):