diff --git a/core/class/declarationtva.class.php b/core/class/declarationtva.class.php
index 59dca09..661d93d 100644
--- a/core/class/declarationtva.class.php
+++ b/core/class/declarationtva.class.php
@@ -276,6 +276,9 @@ class DeclarationTVA
             }
         }
 
+        // Debug totals
+        error_log("DeclarationTVA: Total VAT collected: $total_vat_collected, Total VAT deductible: $total_vat_deductible");
+        
         // Calculate D-section result lines (25, 26, 28, 29)
         $this->calculateDSectionLines($declaration_id, $total_vat_collected, $total_vat_deductible);