diff --git a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js
index 54153b5c19f..2d5cbb9e6c3 100644
--- a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js
+++ b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js
@@ -648,8 +648,8 @@ frappe.ui.form.on("Purchase Invoice", {
 	},
 
 	onload: function (frm) {
-		if (frm.doc.__onload && frm.is_new()) {
-			if (frm.doc.supplier) {
+		if (frm.doc.__onload && frm.doc.supplier) {
+			if (frm.is_new()) {
 				frm.doc.apply_tds = frm.doc.__onload.supplier_tds ? 1 : 0;
 			}
 			if (!frm.doc.__onload.supplier_tds) {
diff --git a/erpnext/buying/doctype/purchase_order/purchase_order.js b/erpnext/buying/doctype/purchase_order/purchase_order.js
index a40ef47afcf..ac2aa43f23d 100644
--- a/erpnext/buying/doctype/purchase_order/purchase_order.js
+++ b/erpnext/buying/doctype/purchase_order/purchase_order.js
@@ -133,8 +133,8 @@ frappe.ui.form.on("Purchase Order", {
 			frm.set_value("transaction_date", frappe.datetime.get_today());
 		}
 
-		if (frm.doc.__onload && frm.is_new()) {
-			if (frm.doc.supplier) {
+		if (frm.doc.__onload && frm.doc.supplier) {
+			if (frm.is_new()) {
 				frm.doc.apply_tds = frm.doc.__onload.supplier_tds ? 1 : 0;
 			}
 			if (!frm.doc.__onload.supplier_tds) {