diff --git a/l10n_br_stock_account/models/stock_picking.py b/l10n_br_stock_account/models/stock_picking.py
index 8bcf3775a753..a0170c815009 100644
--- a/l10n_br_stock_account/models/stock_picking.py
+++ b/l10n_br_stock_account/models/stock_picking.py
@@ -28,7 +28,7 @@ def _default_fiscal_operation(self):
             if hasattr(self, "purchase_id") and hasattr(
                 self.purchase_id, "fiscal_operation_id"
             ):
-                if not self.purchase_id.fiscal_operation_id:
+                if self.purchase_id and not self.purchase_id.fiscal_operation_id:
                     fiscal_operation = False
             if hasattr(self, "sale_id") and hasattr(
                 self.sale_id, "fiscal_operation_id"
@@ -40,7 +40,7 @@ def _default_fiscal_operation(self):
                 # if not self.sale_id.fiscal_operation_id:
                 # AttributeError: 'sale.order' object has no attribute
                 # 'fiscal_operation_id'
-                if not self.sale_id.fiscal_operation_id:
+                if self.sale_id and not self.sale_id.fiscal_operation_id:
                     fiscal_operation = False
 
         return fiscal_operation