diff --git a/core/class/declarationtva.class.php b/core/class/declarationtva.class.php
index a1e8fe1..10c16d9 100644
--- a/core/class/declarationtva.class.php
+++ b/core/class/declarationtva.class.php
@@ -924,16 +924,34 @@ class DeclarationTVA
                 error_log("DEBUG: Found " . $existing_obj->count . " existing accounting entries for declaration " . $this->declaration_name);
                 error_log("DEBUG: Deleting existing entries to prevent duplicates");
                 
-                // Delete existing entries to prevent duplicates
+                // Delete existing entries to prevent duplicates (from all journals)
                 $delete_sql = "DELETE FROM " . MAIN_DB_PREFIX . "accounting_bookkeeping 
                                WHERE doc_ref = '" . $this->db->escape($this->declaration_name) . "' 
                                AND entity = " . $this->entity;
+                
+                // Also delete entries that might have been created with different doc_ref but same period
+                $delete_period_sql = "DELETE FROM " . MAIN_DB_PREFIX . "accounting_bookkeeping 
+                                      WHERE doc_date >= '" . $this->start_date . "' 
+                                      AND doc_date <= '" . $this->end_date . "' 
+                                      AND (doc_ref LIKE '%" . $this->db->escape($this->declaration_name) . "%' 
+                                           OR doc_ref LIKE '%TVA%' 
+                                           OR doc_ref LIKE '%" . date('Y', strtotime($this->start_date)) . "%')
+                                      AND entity = " . $this->entity;
                 $delete_result = $this->db->query($delete_sql);
                 if ($delete_result) {
                     $deleted_count = $this->db->affected_rows($delete_result);
-                    error_log("DEBUG: Successfully deleted " . $deleted_count . " existing entries");
+                    error_log("DEBUG: Successfully deleted " . $deleted_count . " existing entries by doc_ref");
                 } else {
-                    error_log("DEBUG: Failed to delete existing entries: " . $this->db->lasterror());
+                    error_log("DEBUG: Failed to delete existing entries by doc_ref: " . $this->db->lasterror());
+                }
+                
+                // Execute period-based deletion
+                $delete_period_result = $this->db->query($delete_period_sql);
+                if ($delete_period_result) {
+                    $deleted_period_count = $this->db->affected_rows($delete_period_result);
+                    error_log("DEBUG: Successfully deleted " . $deleted_period_count . " existing entries by period");
+                } else {
+                    error_log("DEBUG: Failed to delete existing entries by period: " . $this->db->lasterror());
                 }
                 
                 // Verify deletion