diff --git a/bt5/erp5_invoicing/PortalTypeWorkflowChainTemplateItem/workflow_chain_type.xml b/bt5/erp5_invoicing/PortalTypeWorkflowChainTemplateItem/workflow_chain_type.xml
index c215b597a7719472f7ba45817e0b850356a4d451..a89b72355835288d61e7798035401bc97cfa61c7 100644
--- a/bt5/erp5_invoicing/PortalTypeWorkflowChainTemplateItem/workflow_chain_type.xml
+++ b/bt5/erp5_invoicing/PortalTypeWorkflowChainTemplateItem/workflow_chain_type.xml
@@ -31,10 +31,6 @@
   <type>Sale Order Line</type>
   <workflow>delivery_movement_account_interaction_workflow</workflow>
  </chain>
- <chain>
-  <type>Tax Rule</type>
-  <workflow>edit_workflow, rule_validation_workflow</workflow>
- </chain>
  <chain>
   <type>Trade Model Rule</type>
   <workflow>edit_workflow, rule_validation_workflow</workflow>
diff --git a/bt5/erp5_invoicing/bt/revision b/bt5/erp5_invoicing/bt/revision
index fefb598af8c98e1a2953068d56df3a81f968074b..9e6181a6edf278d8fe3d626196e7a67223fae140 100644
--- a/bt5/erp5_invoicing/bt/revision
+++ b/bt5/erp5_invoicing/bt/revision
@@ -1 +1 @@
-284
\ No newline at end of file
+285
\ No newline at end of file
diff --git a/bt5/erp5_invoicing/bt/template_portal_type_workflow_chain_list b/bt5/erp5_invoicing/bt/template_portal_type_workflow_chain_list
index 1556728c776e27f5f8d9e8cf3f1cc2afb96f40c5..a26373d4607e4724b23e2980b5e8c60f1fabddcc 100644
--- a/bt5/erp5_invoicing/bt/template_portal_type_workflow_chain_list
+++ b/bt5/erp5_invoicing/bt/template_portal_type_workflow_chain_list
@@ -18,7 +18,5 @@ Purchase Order Cell | delivery_movement_account_interaction_workflow
 Purchase Order Line | delivery_movement_account_interaction_workflow
 Sale Order Cell | delivery_movement_account_interaction_workflow
 Sale Order Line | delivery_movement_account_interaction_workflow
-Tax Rule | edit_workflow
-Tax Rule | rule_validation_workflow
 Trade Model Rule | edit_workflow
 Trade Model Rule | rule_validation_workflow
\ No newline at end of file