diff --git a/source/helper/util.py b/source/helper/util.py
index 956a953..7c3203d 100644
--- a/source/helper/util.py
+++ b/source/helper/util.py
@@ -667,9 +667,11 @@ class DataToDict():
                     'Base': data[i + 1],
                     'Impuesto': data[i + 2],
                     'TipoFactor': data[i + 3],
-                    'TasaOCuota': data[i + 4],
-                    'Importe': data[i + 5],
                 }
+                if data[i + 4]:
+                    tax['TasaOCuota'] = data[i + 4]
+                if data[i + 5]:
+                    tax['Importe'] = data[i + 5]
                 traslados.append(tax)
             elif type_tax == self.RETENCION:
                 tax = {
@@ -861,9 +863,11 @@ class DataToDict():
                 'BaseP': data[i],
                 'ImpuestoP': data[i + 1],
                 'TipoFactorP': data[i + 2],
-                'TasaOCuotaP': data[i + 3],
-                'ImporteP': data[i + 4],
             }
+            if data[i + 3]:
+                tax['TasaOCuotaP'] = data[i + 3]
+            if data[i + 4]:
+                tax['ImporteP'] = data[i + 4]
             traslados.append(tax)
         return traslados
 
@@ -939,10 +943,13 @@ class DataToDict():
             tax = {
                 'BaseDR': data[i + 1],
                 'ImpuestoDR': data[i + 2],
-                'TipoFactorDR': data[i + 3],
-                'TasaOCuotaDR': data[i + 4],
-                'ImporteDR': data[i + 5],
+                'TipoFactorDR': data[i + 3]
             }
+            if data[i + 4]:
+                tax['TasaOCuotaDR'] = data[i + 4]
+            if data[i + 5]:
+                tax['ImporteDR'] = data[i + 5]
+
             if type_tax == self.TRASLADO:
                 traslados.append(tax)
             elif type_tax == self.RETENCION: