diff --git a/addons/account/models/chart_template.py b/addons/account/models/chart_template.py
index 040e3fa0845..57e0938dd38 100644
--- a/addons/account/models/chart_template.py
+++ b/addons/account/models/chart_template.py
@@ -235,7 +235,7 @@ class AccountChartTemplate(models.AbstractModel):
         unique_tax_name_keys = set(current_taxes.mapped(unique_tax_name_key))
         xmlid2tax = {
             xml_id.split('.')[1].split('_', maxsplit=1)[1]: self.env['account.tax'].browse(record)
-            for record, xml_id in current_taxes.get_external_id().items()
+            for record, xml_id in current_taxes.get_external_id().items() if xml_id
         }
         def tax_template_changed(tax, template):
             return (