diff --git a/admin/setup_mvp.php b/admin/setup_mvp.php
index 741e6ea..6d28c1f 100644
--- a/admin/setup_mvp.php
+++ b/admin/setup_mvp.php
@@ -120,7 +120,19 @@ print '<strong>Notice 4722 - Summary Table CA3 (3310-CA3-SD)</strong><br>';
 print 'Configuration basée sur la structure officielle la plus récente du formulaire CA-3.';
 print '</div><br>';
 
-// Print configuration form
+// Tab navigation
+print '<div class="tabs">';
+print '<ul class="tabBar">';
+print '<li class="tabBar tabBarActive"><a href="#tab_mapping" class="tabBar">' . $langs->trans("PCGMapping") . '</a></li>';
+print '<li class="tabBar"><a href="#tab_templates" class="tabBar">' . $langs->trans("TemplateManagement") . '</a></li>';
+print '</ul>';
+print '</div>';
+
+// Tab content container
+print '<div class="tabContainer">';
+
+// Tab 1: PCG Mapping
+print '<div id="tab_mapping" class="tabContent">';
 print '<form method="POST" action="' . $_SERVER['PHP_SELF'] . '">';
 print '<input type="hidden" name="action" value="update_mappings">';
 print '<input type="hidden" name="token" value="' . newToken() . '">';
@@ -254,7 +266,10 @@ if (empty($mappings_by_line)) {
     }
 }
 
-// Template Management Section
+print '</div>'; // Close tab_mapping
+
+// Tab 2: Template Management
+print '<div id="tab_templates" class="tabContent" style="display: none;">';
 print '<div class="fichecenter">';
 print '<div class="fichehalfleft">';
 
@@ -372,7 +387,29 @@ print '</form>';
 print '</div>';
 print '</div>';
 
-print '</div>';
+print '</div>'; // Close tab_templates
+print '</div>'; // Close tabContainer
+
+// Add JavaScript for tab functionality
+print '<script type="text/javascript">
+jQuery(document).ready(function() {
+    // Tab switching functionality
+    jQuery(".tabBar a").click(function(e) {
+        e.preventDefault();
+        
+        // Remove active class from all tabs
+        jQuery(".tabBar li").removeClass("tabBarActive");
+        jQuery(".tabContent").hide();
+        
+        // Add active class to clicked tab
+        jQuery(this).parent().addClass("tabBarActive");
+        
+        // Show corresponding content
+        var target = jQuery(this).attr("href");
+        jQuery(target).show();
+    });
+});
+</script>';
 
 // Print footer
 llxFooter();
diff --git a/langs/en_US/declarationtva.lang b/langs/en_US/declarationtva.lang
index 84f2387..abd143e 100644
--- a/langs/en_US/declarationtva.lang
+++ b/langs/en_US/declarationtva.lang
@@ -16,6 +16,10 @@ DeclarationTVASetup = DeclarationTVA setup
 Settings = Settings
 DeclarationTVASetupPage = DeclarationTVA setup page
 NewSection=New section
+
+# Configuration tabs
+PCGMapping = PCG Mapping
+TemplateManagement = Template Management
 DECLARATIONTVA_MYPARAM1 = My param 1
 DECLARATIONTVA_MYPARAM1Tooltip = My param 1 tooltip
 DECLARATIONTVA_MYPARAM2=My param 2
diff --git a/langs/fr_FR/declarationtva.lang b/langs/fr_FR/declarationtva.lang
index 785af87..9a6e002 100644
--- a/langs/fr_FR/declarationtva.lang
+++ b/langs/fr_FR/declarationtva.lang
@@ -21,6 +21,10 @@ NewSection = Nouvelle section
 DECLARATIONTVA_PCG_CONFIG = Configuration des comptes PCG
 DECLARATIONTVA_PCG_CONFIG_TOOLTIP = Configuration des comptes du Plan Comptable Général pour chaque case de la CA3
 
+# Onglets de configuration
+PCGMapping = Mapping PCG
+TemplateManagement = Gestion des modèles
+
 # Sélection multiple de comptes
 DECLARATIONTVA_MULTIPLE_ACCOUNTS = Sélection multiple de comptes
 DECLARATIONTVA_ACCOUNT_SELECTION = Sélection de comptes