diff --git a/frontend/src/components/shared/hidden-tabs.ts b/frontend/src/components/shared/hidden-tabs.ts
new file mode 100644
index 0000000..6b76673
--- /dev/null
+++ b/frontend/src/components/shared/hidden-tabs.ts
@@ -0,0 +1,44 @@
+/**
+ * Tabs hidden from navigation and staff permission UI until features ship.
+ * Routes, pages, and backend permissions stay in place — flip flags to re-enable.
+ */
+export const HIDDEN_TAB_FEATURE_FLAGS = {
+  billing: true,
+  reports: true,
+} as const;
+
+const HIDDEN_PATHS: readonly string[] = [
+  ...(HIDDEN_TAB_FEATURE_FLAGS.billing ? (['/billing'] as const) : []),
+  ...(HIDDEN_TAB_FEATURE_FLAGS.reports ? (['/reports'] as const) : []),
+];
+
+const HIDDEN_PERMISSIONS: readonly string[] = [
+  ...(HIDDEN_TAB_FEATURE_FLAGS.billing
+    ? (['TAB_BILLING_READ', 'TAB_BILLING_EDIT'] as const)
+    : []),
+  ...(HIDDEN_TAB_FEATURE_FLAGS.reports
+    ? (['TAB_REPORTS_READ', 'TAB_REPORTS_EDIT'] as const)
+    : []),
+];
+
+const HIDDEN_PATH_SET = new Set<string>(HIDDEN_PATHS);
+const HIDDEN_PERMISSION_SET = new Set<string>(HIDDEN_PERMISSIONS);
+
+export function isHiddenTabPath(path: string): boolean {
+  return HIDDEN_PATH_SET.has(path);
+}
+
+export function isHiddenTabPermission(permission: string): boolean {
+  return HIDDEN_PERMISSION_SET.has(permission);
+}
+
+/** Keep hidden-tab grants when saving staff permissions the UI no longer shows. */
+export function preserveHiddenTabPermissions(
+  fromForm: string[],
+  existing?: string[] | null,
+): string[] {
+  if (!existing?.length) return fromForm;
+  const preserved = existing.filter((p) => isHiddenTabPermission(p));
+  if (!preserved.length) return fromForm;
+  return [...new Set([...fromForm, ...preserved])];
+}
diff --git a/frontend/src/components/shared/permissions.ts b/frontend/src/components/shared/permissions.ts
index cad5b75..b7c4631 100644
--- a/frontend/src/components/shared/permissions.ts
+++ b/frontend/src/components/shared/permissions.ts
@@ -1,4 +1,5 @@
 import type { Organization } from '@/types/organization';
+import { isHiddenTabPath } from '@/components/shared/hidden-tabs';
 
 export type OrgTypeName = 'CLINIC' | 'LAB';
 
@@ -64,6 +65,10 @@ export function canAccessDashboardRoute(org: Organization | null, pathname: stri
   const route = getRouteConfigForPath(pathname);
   if (!route) return true;
 
+  if (isHiddenTabPath(route.prefix)) {
+    return false;
+  }
+
   if (!isRouteAllowedForOrgType(pathname, org.type)) {
     return false;
   }
@@ -89,6 +94,7 @@ export function firstAccessibleDashboardPath(org: Organization | null): string {
 
   for (const route of DASHBOARD_ROUTES) {
     if (!route.orgTypes.includes(org.type)) continue;
+    if (isHiddenTabPath(route.prefix)) continue;
     if (route.prefix === '/appointments') {
       if (canAccessAppointmentsSection(org)) return route.prefix;
       continue;
diff --git a/frontend/src/components/staff/staff-permission-form.ts b/frontend/src/components/staff/staff-permission-form.ts
index 5f4c04a..7e66e65 100644
--- a/frontend/src/components/staff/staff-permission-form.ts
+++ b/frontend/src/components/staff/staff-permission-form.ts
@@ -4,6 +4,7 @@
  */
 
 import type { OrgTypeName } from '@/components/shared/permissions';
+import { isHiddenTabPermission } from '@/components/shared/hidden-tabs';
 
 export const STAFF_FEATURE_GROUPS = [
   { labelKey: 'featureToday', read: 'TAB_TODAY_READ', edit: 'TAB_TODAY_EDIT', orgTypes: ['CLINIC', 'LAB'] as const },
@@ -24,8 +25,9 @@ export type OrgType = OrgTypeName | null | undefined;
 type StaffFeaturesTranslate = (key: string) => string;
 
 export function staffFeatureGroupsForOrgType(organizationType: OrgType) {
-  if (!organizationType) return [...STAFF_FEATURE_GROUPS];
-  return STAFF_FEATURE_GROUPS.filter((g) =>
+  const visible = STAFF_FEATURE_GROUPS.filter((g) => !isHiddenTabPermission(g.read));
+  if (!organizationType) return [...visible];
+  return visible.filter((g) =>
     (g.orgTypes as readonly OrgTypeName[]).includes(organizationType),
   );
 }
diff --git a/frontend/src/components/ui/shared/Sidebar.tsx b/frontend/src/components/ui/shared/Sidebar.tsx
index 4b2763f..027d3a7 100644
--- a/frontend/src/components/ui/shared/Sidebar.tsx
+++ b/frontend/src/components/ui/shared/Sidebar.tsx
@@ -27,6 +27,7 @@ import {
   canViewTasks,
   canViewTab,
 } from '@/components/shared/permissions';
+import { isHiddenTabPath } from '@/components/shared/hidden-tabs';
 import {
   counterpartOrganizationType,
   organizationTypeIcon,
@@ -82,6 +83,9 @@ function Sidebar({ mobileOpen = false, onClose }: SidebarProps) {
   const visibleMenu = useMemo(
     () =>
       menu.filter((item) => {
+        if (isHiddenTabPath(item.path)) {
+          return false;
+        }
         if (!orgType || !item.orgTypes.includes(orgType)) {
           return false;
         }
diff --git a/frontend/src/components/ui/staff/StaffPage.tsx b/frontend/src/components/ui/staff/StaffPage.tsx
index 866b049..e007f00 100644
--- a/frontend/src/components/ui/staff/StaffPage.tsx
+++ b/frontend/src/components/ui/staff/StaffPage.tsx
@@ -9,6 +9,7 @@ import {
   canEditStaff,
   canViewStaff,
 } from '@/components/shared/permissions';
+import { preserveHiddenTabPermissions } from '@/components/shared/hidden-tabs';
 import {
   permissionNamesFromFeatureState,
   emptyFeaturePermissionState,
@@ -464,7 +465,10 @@ export function StaffPage() {
 
       await staffApi.updateMember(editing.id, {
         name: editName.trim(),
-        permissionNames: permissionNamesFromFeatureState(editPerms),
+        permissionNames: preserveHiddenTabPermissions(
+          permissionNamesFromFeatureState(editPerms),
+          editing.permissions,
+        ),
       });
 
       toast.showSuccess(t('successMemberUpdated'));