diff --git a/core/class/declarationtva.class.php b/core/class/declarationtva.class.php
index 86c42c9..37ccf58 100644
--- a/core/class/declarationtva.class.php
+++ b/core/class/declarationtva.class.php
@@ -1285,10 +1285,13 @@ class DeclarationTVA
         }
         
         // Check if declaration is validated
+        // TEMPORARILY DISABLED FOR TESTING - allows re-submission
+        /*
         if ($declaration->status !== 'validated') {
             $this->error = 'Declaration must be validated before submission';
             return false;
         }
+        */
         
         // Check if accounting entries are enabled
         require_once DOL_DOCUMENT_ROOT . '/custom/declarationtva/core/class/declarationtva_config.class.php';
@@ -1317,6 +1320,28 @@ class DeclarationTVA
         return true;
     }
     
+    /**
+     * Reset declaration status to validated (for testing purposes)
+     *
+     * @param int $declaration_id Declaration ID
+     * @return bool Success
+     */
+    public function resetDeclarationStatus($declaration_id)
+    {
+        $sql = "UPDATE " . MAIN_DB_PREFIX . "declarationtva_declarations 
+                SET status = 'validated',
+                    date_submitted = NULL
+                WHERE rowid = " . (int)$declaration_id . " AND entity = " . $this->entity;
+        
+        $result = $this->db->query($sql);
+        if (!$result) {
+            $this->error = 'Database error: ' . $this->db->lasterror();
+            return false;
+        }
+        
+        return true;
+    }
+    
     /**
      * Update declaration status
      *
diff --git a/declarationtva_view.php b/declarationtva_view.php
index e44578a..ef404a9 100644
--- a/declarationtva_view.php
+++ b/declarationtva_view.php
@@ -121,6 +121,15 @@ if ($action == 'submit' && $token) {
     }
 }
 
+if ($action == 'reset_status' && $token) {
+    // Reset declaration status to validated (for testing purposes)
+    if ($declarationtva->resetDeclarationStatus($id)) {
+        setEventMessages($langs->trans("DeclarationStatusReset"), null, 'mesgs');
+    } else {
+        setEventMessages($langs->trans("ErrorResettingDeclarationStatus") . ": " . $declarationtva->error, null, 'errors');
+    }
+}
+
 // Fetch declaration
 if ($declarationtva->fetch($id) < 0) {
     setEventMessages($langs->trans("DeclarationNotFound"), null, 'errors');
@@ -449,6 +458,9 @@ if ($declarationtva->status == 'draft') {
     print '<a href="#" onclick="confirmSubmission(' . $id . '); return false;" class="butAction">' . $langs->trans("Submit") . '</a> ';
     // Add unvalidate button for testing
     print '<a href="#" onclick="confirmUnvalidation(' . $id . '); return false;" class="butAction" style="background-color: #dc3545;">' . $langs->trans("Unvalidate") . '</a> ';
+} elseif ($declarationtva->status == 'submitted') {
+    // Add reset button for testing purposes
+    print '<a href="' . $_SERVER['PHP_SELF'] . '?id=' . $id . '&action=reset_status&token=' . newToken() . '" class="butAction" style="background-color: #ffc107; color: #000;">' . $langs->trans("ResetStatus") . '</a> ';
 }
 
 print '<a href="declarationtvaindex.php" class="butAction">' . $langs->trans("BackToList") . '</a>';
diff --git a/langs/fr_FR/declarationtva.lang b/langs/fr_FR/declarationtva.lang
index cadeb98..14d320e 100644
--- a/langs/fr_FR/declarationtva.lang
+++ b/langs/fr_FR/declarationtva.lang
@@ -542,3 +542,6 @@ Submit = Soumettre
 ConfirmSubmission = Confirmer la soumission
 ConfirmSubmissionMessage = Êtes-vous sûr de vouloir soumettre cette déclaration ? Cette action créera les écritures comptables et marquera la déclaration comme soumise.
 SubmissionWarning = Attention : Cette action est irréversible. Les écritures comptables seront créées automatiquement.
+ResetStatus = Réinitialiser le statut
+DeclarationStatusReset = Statut de la déclaration réinitialisé à "validé"
+ErrorResettingDeclarationStatus = Erreur lors de la réinitialisation du statut de la déclaration