diff --git a/erpnext/accounts/doctype/pos_invoice/pos_invoice.py b/erpnext/accounts/doctype/pos_invoice/pos_invoice.py
index 80c4db50acb..51fb5730ed8 100644
--- a/erpnext/accounts/doctype/pos_invoice/pos_invoice.py
+++ b/erpnext/accounts/doctype/pos_invoice/pos_invoice.py
@@ -560,7 +560,13 @@ class POSInvoice(SalesInvoice):
 				"Account", self.debit_to, "account_currency", cache=True
 			)
 		if not self.due_date and self.customer:
-			self.due_date = get_due_date(self.posting_date, "Customer", self.customer, self.company)
+			self.due_date = get_due_date(
+				self.posting_date,
+				"Customer",
+				self.customer,
+				self.company,
+				template_name=self.payment_terms_template,
+			)
 
 		super(SalesInvoice, self).set_missing_values(for_validate)
 
diff --git a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
index b0de69ed5cd..04ee0c821a7 100644
--- a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
+++ b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
@@ -173,7 +173,12 @@ class PurchaseInvoice(BuyingController):
 			)
 		if not self.due_date:
 			self.due_date = get_due_date(
-				self.posting_date, "Supplier", self.supplier, self.company, self.bill_date
+				self.posting_date,
+				"Supplier",
+				self.supplier,
+				self.company,
+				self.bill_date,
+				template_name=self.payment_terms_template,
 			)
 
 		tds_category = frappe.db.get_value("Supplier", self.supplier, "tax_withholding_category")