diff --git a/erpnext/accounts/doctype/payment_request/payment_request.py b/erpnext/accounts/doctype/payment_request/payment_request.py
index adef60e58a7..862f2dc0452 100644
--- a/erpnext/accounts/doctype/payment_request/payment_request.py
+++ b/erpnext/accounts/doctype/payment_request/payment_request.py
@@ -16,7 +16,7 @@ from erpnext.accounts.doctype.payment_entry.payment_entry import (
 )
 from erpnext.accounts.doctype.subscription_plan.subscription_plan import get_plan_rate
 from erpnext.accounts.party import get_party_account, get_party_bank_account
-from erpnext.accounts.utils import get_account_currency
+from erpnext.accounts.utils import get_account_currency, get_currency_precision
 from erpnext.utilities import payment_app_import_guard
 
 
@@ -566,7 +566,10 @@ def get_amount(ref_doc, payment_account=None):
 	elif dt == "Fees":
 		grand_total = ref_doc.outstanding_amount
 
-	return grand_total
+	if grand_total > 0:
+		return flt(grand_total, get_currency_precision())
+	else:
+		frappe.throw(_("Payment Entry is already created"))
 
 
 def get_existing_payment_request_amount(ref_dt, ref_dn):