diff --git a/apps/web/src/components/layout/Header.tsx b/apps/web/src/components/layout/Header.tsx
index 58caf840b..b5fa669d4 100644
--- a/apps/web/src/components/layout/Header.tsx
+++ b/apps/web/src/components/layout/Header.tsx
@@ -37,6 +37,7 @@ export function Header(_props: HeaderProps) {
   const navigate = useNavigate();
 
   const handleLogout = async () => {
+    setIsUserMenuOpen(false);
     await logout();
     navigate('/login');
   };
diff --git a/apps/web/src/features/auth/pages/LoginPage.tsx b/apps/web/src/features/auth/pages/LoginPage.tsx
index 8ac6ec313..f650648d0 100644
--- a/apps/web/src/features/auth/pages/LoginPage.tsx
+++ b/apps/web/src/features/auth/pages/LoginPage.tsx
@@ -60,19 +60,9 @@ export function LoginPage() {
     }
   }, []);
 
-  // Rediriger si déjà connecté (mais attendre que le chargement soit terminé)
+  // Rediriger si déjà connecté (user data géré par React Query, pas dans persist)
   if (isAuthenticated && !isLoading && !loading) {
-    const stored = localStorage.getItem('auth-storage');
-    if (stored) {
-      try {
-        const parsed = JSON.parse(stored);
-        if (parsed.state?.user && parsed.state?.isAuthenticated) {
-          return <Navigate to="/dashboard" replace />;
-        }
-      } catch {
-        // Continue, pas encore persisté
-      }
-    }
+    return <Navigate to="/dashboard" replace />;
   }
 
   const validateField = (
diff --git a/apps/web/src/features/auth/store/authStore.ts b/apps/web/src/features/auth/store/authStore.ts
index 577a6d4f3..e09b174fe 100644
--- a/apps/web/src/features/auth/store/authStore.ts
+++ b/apps/web/src/features/auth/store/authStore.ts
@@ -12,6 +12,7 @@ import {
 } from '@/services/api/auth';
 import { TokenStorage } from '@/services/tokenStorage';
 import { csrfService } from '@/services/csrf';
+import { getQueryClient } from '@/utils/queryClientSingleton';
 import { broadcastSync } from '@/utils/broadcastSync';
 import { logger } from '@/utils/logger';
 import type { ApiError } from '@/schemas/apiSchemas';
@@ -206,6 +207,12 @@ export const useAuthStore = create<AuthStore>()(
           // Supprimer le token CSRF
           csrfService.clearToken();
 
+          // Clear React Query user cache
+          const qc = getQueryClient();
+          if (qc) {
+            qc.removeQueries({ queryKey: ['user', 'me'] });
+          }
+
           // Nettoyer l'état
           set({
             isAuthenticated: false,
diff --git a/apps/web/src/services/api/auth.ts b/apps/web/src/services/api/auth.ts
index c1e9b23f2..cc1df0357 100644
--- a/apps/web/src/services/api/auth.ts
+++ b/apps/web/src/services/api/auth.ts
@@ -7,6 +7,7 @@ import {
   initializeProactiveRefresh,
   cleanupProactiveRefresh,
 } from '../tokenRefresh';
+import { getQueryClient } from '@/utils/queryClientSingleton';
 import { logger } from '@/utils/logger';
 import type { User } from '@/types';
 
@@ -344,6 +345,11 @@ export async function logout(): Promise<void> {
     cleanupProactiveRefresh();
     // Supprimer tokens du storage
     TokenStorage.clearTokens();
+    // Clear React Query user cache to avoid stale user data after logout
+    const qc = getQueryClient();
+    if (qc) {
+      qc.removeQueries({ queryKey: ['user', 'me'] });
+    }
   }
 }