diff --git a/erpnext/buying/doctype/purchase_order/purchase_order.js b/erpnext/buying/doctype/purchase_order/purchase_order.js
index b85555ee9f7..aaab5390e91 100644
--- a/erpnext/buying/doctype/purchase_order/purchase_order.js
+++ b/erpnext/buying/doctype/purchase_order/purchase_order.js
@@ -84,8 +84,6 @@ frappe.ui.form.on("Purchase Order", {
 				fetch_payment_terms_template: cint(!frm.doc.ignore_default_payment_terms_template),
 			},
 			function () {
-				frm.doc.apply_tds = frm.supplier_tds ? 1 : 0;
-				frm.doc.tax_withholding_category = frm.supplier_tds;
 				frm.set_df_property("apply_tds", "read_only", frm.supplier_tds ? 0 : 1);
 				frm.set_df_property("tax_withholding_category", "hidden", frm.supplier_tds ? 0 : 1);
 			}
diff --git a/erpnext/buying/doctype/purchase_order/purchase_order.py b/erpnext/buying/doctype/purchase_order/purchase_order.py
index 388fdb336ba..e3240de70a3 100644
--- a/erpnext/buying/doctype/purchase_order/purchase_order.py
+++ b/erpnext/buying/doctype/purchase_order/purchase_order.py
@@ -659,6 +659,8 @@ class PurchaseOrder(BuyingController):
 			self.tax_withholding_category = tds_category
 			self.set_onload("supplier_tds", tds_category)
 
+		super().set_missing_values(for_validate)
+
 
 @frappe.request_cache
 def item_last_purchase_rate(name, conversion_rate, item_code, conversion_factor=1.0):