diff --git a/rattail_corepos/importing/corepos/db.py b/rattail_corepos/importing/corepos/db.py
index 62fc6c5..b08a1ed 100644
--- a/rattail_corepos/importing/corepos/db.py
+++ b/rattail_corepos/importing/corepos/db.py
@@ -310,10 +310,11 @@ class ProductImporter(FromCOREPOS, corepos_importing.model.ProductImporter):
             'regular_price_price': price,
             'regular_price_multiple': 1 if price is not None else None,
             'regular_price_type': self.enum.PRICE_TYPE_REGULAR if price is not None else None,
-
-            'tax_code': str(product.tax_rate.id) if product.tax_rate_id else None,
         }
 
+        if 'tax_code' in self.fields:
+            data['tax_code'] = str(product.tax_rate.id) if product.tax_rate else None
+
         if self.fields_active(self.size_fields):
             size_info = self.normalize_size_info(product)
             data.update({