diff --git a/erpnext/accounts/doctype/pos_invoice/pos_invoice.py b/erpnext/accounts/doctype/pos_invoice/pos_invoice.py
index 5bc32ff68df..f556275b2f5 100644
--- a/erpnext/accounts/doctype/pos_invoice/pos_invoice.py
+++ b/erpnext/accounts/doctype/pos_invoice/pos_invoice.py
@@ -17,6 +17,7 @@ from erpnext.accounts.doctype.sales_invoice.sales_invoice import (
 	get_mode_of_payment_info,
 	update_multi_mode_option,
 )
+from erpnext.accounts.doctype.sales_invoice.services.loyalty import LoyaltyService
 from erpnext.accounts.party import get_due_date, get_party_account
 from erpnext.controllers.queries import item_query as _item_query
 from erpnext.controllers.sales_and_purchase_return import get_sales_invoice_item_from_consolidated_invoice
@@ -241,13 +242,13 @@ class POSInvoice(SalesInvoice):
 	def on_submit(self):
 		# create the loyalty point ledger entry if the customer is enrolled in any loyalty program
 		if not self.is_return and self.loyalty_program:
-			self.make_loyalty_point_entry()
+			LoyaltyService(self).make_loyalty_point_entry()
 		elif self.is_return and self.return_against and self.loyalty_program:
 			against_psi_doc = frappe.get_doc("POS Invoice", self.return_against)
-			against_psi_doc.delete_loyalty_point_entry()
-			against_psi_doc.make_loyalty_point_entry()
+			LoyaltyService(against_psi_doc).delete_loyalty_point_entry()
+			LoyaltyService(against_psi_doc).make_loyalty_point_entry()
 		if self.redeem_loyalty_points and self.loyalty_points:
-			self.apply_loyalty_points()
+			LoyaltyService(self).apply_loyalty_points()
 		self.check_phone_payments()
 		self.set_status(update=True)
 		self.make_bundle_for_sales_purchase_return()
@@ -288,11 +289,11 @@ class POSInvoice(SalesInvoice):
 		# run on cancel method of selling controller
 		super(SalesInvoice, self).on_cancel()
 		if not self.is_return and self.loyalty_program:
-			self.delete_loyalty_point_entry()
+			LoyaltyService(self).delete_loyalty_point_entry()
 		elif self.is_return and self.return_against and self.loyalty_program:
 			against_psi_doc = frappe.get_doc("POS Invoice", self.return_against)
-			against_psi_doc.delete_loyalty_point_entry()
-			against_psi_doc.make_loyalty_point_entry()
+			LoyaltyService(against_psi_doc).delete_loyalty_point_entry()
+			LoyaltyService(against_psi_doc).make_loyalty_point_entry()
 
 		self.db_set("status", "Cancelled")
 
diff --git a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
index 5d6ec41c856..5e81cc3184a 100644
--- a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
+++ b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
@@ -469,13 +469,13 @@ class SalesInvoice(SellingController):
 			and self.loyalty_program
 			and not self.dont_create_loyalty_points
 		):
-			self.make_loyalty_point_entry()
+			LoyaltyService(self).make_loyalty_point_entry()
 		elif self.is_return and self.return_against and not self.is_consolidated and self.loyalty_program:
 			against_si_doc = frappe.get_doc("Sales Invoice", self.return_against)
 			LoyaltyService(against_si_doc).delete_loyalty_point_entry()
 			LoyaltyService(against_si_doc).make_loyalty_point_entry()
 		if self.redeem_loyalty_points and not self.is_consolidated and self.loyalty_points:
-			self.apply_loyalty_points()
+			LoyaltyService(self).apply_loyalty_points()
 
 		self.process_common_party_accounting()
 		self.update_billed_qty_in_scio()
@@ -530,7 +530,7 @@ class SalesInvoice(SellingController):
 			self.update_project()
 
 		if not self.is_return and not self.is_consolidated and self.loyalty_program:
-			self.delete_loyalty_point_entry()
+			LoyaltyService(self).delete_loyalty_point_entry()
 		elif self.is_return and self.return_against and not self.is_consolidated and self.loyalty_program:
 			against_si_doc = frappe.get_doc("Sales Invoice", self.return_against)
 			LoyaltyService(against_si_doc).delete_loyalty_point_entry()
@@ -1108,18 +1108,6 @@ class SalesInvoice(SellingController):
 			self.validate_for_repost()
 			self.repost_accounting_entries()
 
-	# Called by POS Invoice
-	def make_loyalty_point_entry(self):
-		LoyaltyService(self).make_loyalty_point_entry()
-
-	# Called by POS Invoice
-	def delete_loyalty_point_entry(self):
-		LoyaltyService(self).delete_loyalty_point_entry()
-
-	# Called by POS Invoice
-	def apply_loyalty_points(self):
-		LoyaltyService(self).apply_loyalty_points()
-
 	def set_status(self, update=False, status=None, update_modified=True):
 		StatusService(self).set_status(update, status, update_modified)