diff --git a/erpnext/accounts/doctype/pos_profile/pos_profile.py b/erpnext/accounts/doctype/pos_profile/pos_profile.py
index ef497bf..f648476 100644
--- a/erpnext/accounts/doctype/pos_profile/pos_profile.py
+++ b/erpnext/accounts/doctype/pos_profile/pos_profile.py
@@ -14,6 +14,7 @@
 		self.check_for_duplicate()
 		self.validate_all_link_fields()
 		self.validate_duplicate_groups()
+		self.check_default_payment()
 
 	def check_for_duplicate(self):
 		res = frappe.db.sql("""select name, user from `tabPOS Profile`
@@ -48,6 +49,15 @@
 		if len(customer_groups) != len(set(customer_groups)):
 			frappe.throw(_("Duplicate customer group found in the cutomer group table"), title = "Duplicate Customer Group")
 
+	def check_default_payment(self):
+		if self.payments:
+			default_mode_of_payment = [d.default for d in self.payments if d.default]
+			if not default_mode_of_payment:
+				frappe.throw(_("Set default mode of payment"))
+
+			if len(default_mode_of_payment) > 1:
+				frappe.throw(_("Multiple default mode of payment is not allowed"))
+
 	def before_save(self):
 		set_account_for_mode_of_payment(self)
 
diff --git a/erpnext/accounts/doctype/sales_invoice_payment/sales_invoice_payment.json b/erpnext/accounts/doctype/sales_invoice_payment/sales_invoice_payment.json
index 13d7f15..531622d 100644
--- a/erpnext/accounts/doctype/sales_invoice_payment/sales_invoice_payment.json
+++ b/erpnext/accounts/doctype/sales_invoice_payment/sales_invoice_payment.json
@@ -1,5 +1,6 @@
 {
  "allow_copy": 0, 
+ "allow_guest_to_view": 0, 
  "allow_import": 0, 
  "allow_rename": 0, 
  "beta": 0, 
@@ -11,16 +12,51 @@
  "editable_grid": 1, 
  "fields": [
   {
+   "allow_bulk_edit": 0, 
    "allow_on_submit": 0, 
    "bold": 0, 
    "collapsible": 0, 
+   "columns": 0, 
+   "depends_on": "eval:parent.doctype == 'POS Profile'", 
+   "fieldname": "default", 
+   "fieldtype": "Check", 
+   "hidden": 0, 
+   "ignore_user_permissions": 0, 
+   "ignore_xss_filter": 0, 
+   "in_filter": 0, 
+   "in_global_search": 0, 
+   "in_list_view": 1, 
+   "in_standard_filter": 0, 
+   "label": "Default", 
+   "length": 0, 
+   "no_copy": 0, 
+   "permlevel": 0, 
+   "precision": "", 
+   "print_hide": 0, 
+   "print_hide_if_no_value": 0, 
+   "read_only": 0, 
+   "remember_last_selected_value": 0, 
+   "report_hide": 0, 
+   "reqd": 0, 
+   "search_index": 0, 
+   "set_only_once": 0, 
+   "unique": 0
+  }, 
+  {
+   "allow_bulk_edit": 0, 
+   "allow_on_submit": 0, 
+   "bold": 0, 
+   "collapsible": 0, 
+   "columns": 0, 
    "fieldname": "mode_of_payment", 
    "fieldtype": "Link", 
    "hidden": 0, 
    "ignore_user_permissions": 0, 
    "ignore_xss_filter": 0, 
    "in_filter": 0, 
+   "in_global_search": 0, 
    "in_list_view": 1, 
+   "in_standard_filter": 0, 
    "label": "Mode of Payment", 
    "length": 0, 
    "no_copy": 0, 
@@ -30,6 +66,7 @@
    "print_hide": 0, 
    "print_hide_if_no_value": 0, 
    "read_only": 0, 
+   "remember_last_selected_value": 0, 
    "report_hide": 0, 
    "reqd": 1, 
    "search_index": 0, 
@@ -37,9 +74,11 @@
    "unique": 0
   }, 
   {
+   "allow_bulk_edit": 0, 
    "allow_on_submit": 0, 
    "bold": 0, 
    "collapsible": 0, 
+   "columns": 0, 
    "default": "0.0", 
    "depends_on": "eval:parent.doctype == 'Sales Invoice'", 
    "fieldname": "amount", 
@@ -48,7 +87,9 @@
    "ignore_user_permissions": 0, 
    "ignore_xss_filter": 0, 
    "in_filter": 0, 
+   "in_global_search": 0, 
    "in_list_view": 1, 
+   "in_standard_filter": 0, 
    "label": "Amount", 
    "length": 0, 
    "no_copy": 0, 
@@ -58,6 +99,7 @@
    "print_hide": 0, 
    "print_hide_if_no_value": 0, 
    "read_only": 0, 
+   "remember_last_selected_value": 0, 
    "report_hide": 0, 
    "reqd": 1, 
    "search_index": 0, 
@@ -65,16 +107,20 @@
    "unique": 0
   }, 
   {
+   "allow_bulk_edit": 0, 
    "allow_on_submit": 0, 
    "bold": 0, 
    "collapsible": 0, 
+   "columns": 0, 
    "fieldname": "column_break_3", 
    "fieldtype": "Column Break", 
    "hidden": 0, 
    "ignore_user_permissions": 0, 
    "ignore_xss_filter": 0, 
    "in_filter": 0, 
+   "in_global_search": 0, 
    "in_list_view": 0, 
+   "in_standard_filter": 0, 
    "length": 0, 
    "no_copy": 0, 
    "permlevel": 0, 
@@ -82,6 +128,7 @@
    "print_hide": 0, 
    "print_hide_if_no_value": 0, 
    "read_only": 0, 
+   "remember_last_selected_value": 0, 
    "report_hide": 0, 
    "reqd": 0, 
    "search_index": 0, 
@@ -89,16 +136,20 @@
    "unique": 0
   }, 
   {
+   "allow_bulk_edit": 0, 
    "allow_on_submit": 0, 
    "bold": 0, 
    "collapsible": 0, 
+   "columns": 0, 
    "fieldname": "account", 
    "fieldtype": "Link", 
    "hidden": 0, 
    "ignore_user_permissions": 0, 
    "ignore_xss_filter": 0, 
    "in_filter": 0, 
+   "in_global_search": 0, 
    "in_list_view": 0, 
+   "in_standard_filter": 0, 
    "label": "Account", 
    "length": 0, 
    "no_copy": 0, 
@@ -108,6 +159,7 @@
    "print_hide": 1, 
    "print_hide_if_no_value": 0, 
    "read_only": 1, 
+   "remember_last_selected_value": 0, 
    "report_hide": 0, 
    "reqd": 0, 
    "search_index": 0, 
@@ -115,16 +167,20 @@
    "unique": 0
   }, 
   {
+   "allow_bulk_edit": 0, 
    "allow_on_submit": 0, 
    "bold": 0, 
    "collapsible": 0, 
+   "columns": 0, 
    "fieldname": "type", 
    "fieldtype": "Read Only", 
    "hidden": 0, 
    "ignore_user_permissions": 0, 
    "ignore_xss_filter": 0, 
    "in_filter": 0, 
+   "in_global_search": 0, 
    "in_list_view": 0, 
+   "in_standard_filter": 0, 
    "label": "Type", 
    "length": 0, 
    "no_copy": 0, 
@@ -134,6 +190,7 @@
    "print_hide": 0, 
    "print_hide_if_no_value": 0, 
    "read_only": 0, 
+   "remember_last_selected_value": 0, 
    "report_hide": 0, 
    "reqd": 0, 
    "search_index": 0, 
@@ -141,16 +198,20 @@
    "unique": 0
   }, 
   {
+   "allow_bulk_edit": 0, 
    "allow_on_submit": 0, 
    "bold": 0, 
    "collapsible": 0, 
+   "columns": 0, 
    "fieldname": "base_amount", 
    "fieldtype": "Currency", 
    "hidden": 0, 
    "ignore_user_permissions": 0, 
    "ignore_xss_filter": 0, 
    "in_filter": 0, 
+   "in_global_search": 0, 
    "in_list_view": 0, 
+   "in_standard_filter": 0, 
    "label": "Base Amount (Company Currency)", 
    "length": 0, 
    "no_copy": 1, 
@@ -160,6 +221,7 @@
    "print_hide": 1, 
    "print_hide_if_no_value": 0, 
    "read_only": 1, 
+   "remember_last_selected_value": 0, 
    "report_hide": 0, 
    "reqd": 0, 
    "search_index": 0, 
@@ -167,17 +229,17 @@
    "unique": 0
   }
  ], 
+ "has_web_view": 0, 
  "hide_heading": 0, 
  "hide_toolbar": 0, 
  "idx": 0, 
  "image_view": 0, 
  "in_create": 0, 
- "in_dialog": 0, 
  "is_submittable": 0, 
  "issingle": 0, 
  "istable": 1, 
  "max_attachments": 0, 
- "modified": "2016-07-11 03:28:07.779228", 
+ "modified": "2017-07-24 17:25:03.765856", 
  "modified_by": "Administrator", 
  "module": "Accounts", 
  "name": "Sales Invoice Payment", 
@@ -187,7 +249,9 @@
  "quick_entry": 1, 
  "read_only": 0, 
  "read_only_onload": 0, 
+ "show_name_in_global_search": 0, 
  "sort_field": "modified", 
  "sort_order": "DESC", 
+ "track_changes": 0, 
  "track_seen": 0
 }
\ No newline at end of file
diff --git a/erpnext/patches.txt b/erpnext/patches.txt
index 2aabfc6..af4eab5 100644
--- a/erpnext/patches.txt
+++ b/erpnext/patches.txt
@@ -427,3 +427,4 @@
 erpnext.patches.v8_5.fix_tax_breakup_for_non_invoice_docs
 erpnext.patches.v8_5.remove_quotations_route_in_sidebar
 erpnext.patches.v8_5.update_existing_data_in_project_type
+erpnext.patches.v8_5.set_default_mode_of_payment
\ No newline at end of file
diff --git a/erpnext/patches/v8_5/set_default_mode_of_payment.py b/erpnext/patches/v8_5/set_default_mode_of_payment.py
new file mode 100644
index 0000000..34ecbb0
--- /dev/null
+++ b/erpnext/patches/v8_5/set_default_mode_of_payment.py
@@ -0,0 +1,17 @@
+# Copyright (c) 2017, Frappe and Contributors
+# License: GNU General Public License v3. See license.txt
+
+from __future__ import unicode_literals
+import frappe
+
+def execute():
+	frappe.reload_doctype("POS Profile")
+	frappe.reload_doctype("Sales Invoice Payment")
+
+	frappe.db.sql("""
+		update
+			`tabSales Invoice Payment`
+		set `tabSales Invoice Payment`.default = 1
+		where
+			`tabSales Invoice Payment`.parenttype = 'POS Profile'
+			and `tabSales Invoice Payment`.idx=1""")
\ No newline at end of file
diff --git a/erpnext/public/js/controllers/taxes_and_totals.js b/erpnext/public/js/controllers/taxes_and_totals.js
index a54f30d..83644db 100644
--- a/erpnext/public/js/controllers/taxes_and_totals.js
+++ b/erpnext/public/js/controllers/taxes_and_totals.js
@@ -584,7 +584,7 @@
 		var payment_status = true;
 		if(this.frm.doc.is_pos && (update_paid_amount===undefined || update_paid_amount)){
 			$.each(this.frm.doc['payments'] || [], function(index, data){
-				if(data.type == "Cash" && payment_status && total_amount_to_pay > 0) {
+				if(data.default && payment_status && total_amount_to_pay > 0) {
 					data.base_amount = flt(total_amount_to_pay, precision("base_amount"));
 					data.amount = flt(total_amount_to_pay / me.frm.doc.conversion_rate, precision("amount"));
 					payment_status = false;
diff --git a/erpnext/public/js/pos/pos_selected_item.html b/erpnext/public/js/pos/pos_selected_item.html
index 0ed6c71..6f2772b 100644
--- a/erpnext/public/js/pos/pos_selected_item.html
+++ b/erpnext/public/js/pos/pos_selected_item.html
@@ -17,6 +17,6 @@
 	</div> 
 	<div class="pos-list-row">
 		<div class="cell">{{ __("Amount") }}:</div>
-		<input type="tel" class="form-control cell pos-amount" value="{%= amount %}"/>
+		<input type="tel" class="form-control cell pos-amount" disabled value="{%= amount %}"/>
 	</div>
 </div>
\ No newline at end of file