diff --git a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js
index 1a398ab..0af3f2c 100644
--- a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js
+++ b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js
@@ -141,7 +141,7 @@
 				})
 			}, __("Get Items From"));
 		}
-		this.frm.toggle_reqd("supplier_warehouse", this.frm.doc.is_subcontracted==="Yes");
+		this.frm.toggle_reqd("supplier_warehouse", this.frm.doc.is_subcontracted);
 
 		if (doc.docstatus == 1 && !doc.inter_company_invoice_reference) {
 			frappe.model.with_doc("Supplier", me.frm.doc.supplier, function() {
@@ -569,10 +569,10 @@
 	},
 
 	is_subcontracted: function(frm) {
-		if (frm.doc.is_subcontracted === "Yes") {
+		if (frm.doc.is_subcontracted) {
 			erpnext.buying.get_default_bom(frm);
 		}
-		frm.toggle_reqd("supplier_warehouse", frm.doc.is_subcontracted==="Yes");
+		frm.toggle_reqd("supplier_warehouse", frm.doc.is_subcontracted);
 	},
 
 	update_stock: function(frm) {
diff --git a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.json b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.json
index bd01164..e1f01d0 100644
--- a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.json
+++ b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.json
@@ -543,11 +543,10 @@
    "fieldtype": "Column Break"
   },
   {
-   "default": "No",
+   "default": "0",
    "fieldname": "is_subcontracted",
-   "fieldtype": "Select",
+   "fieldtype": "Check",
    "label": "Raw Materials Supplied",
-   "options": "No\nYes",
    "print_hide": 1
   },
   {
@@ -1366,7 +1365,7 @@
    "width": "50px"
   },
   {
-   "depends_on": "eval:doc.update_stock && doc.is_subcontracted==\"Yes\"",
+   "depends_on": "eval:doc.update_stock && doc.is_subcontracted",
    "fieldname": "supplier_warehouse",
    "fieldtype": "Link",
    "label": "Supplier Warehouse",
diff --git a/erpnext/accounts/doctype/purchase_invoice/test_purchase_invoice.py b/erpnext/accounts/doctype/purchase_invoice/test_purchase_invoice.py
index 843f66d..73390dd 100644
--- a/erpnext/accounts/doctype/purchase_invoice/test_purchase_invoice.py
+++ b/erpnext/accounts/doctype/purchase_invoice/test_purchase_invoice.py
@@ -901,7 +901,7 @@
 		)
 
 		pi = make_purchase_invoice(
-			item_code="_Test FG Item", qty=10, rate=500, update_stock=1, is_subcontracted="Yes"
+			item_code="_Test FG Item", qty=10, rate=500, update_stock=1, is_subcontracted=1
 		)
 
 		self.assertEqual(len(pi.get("supplied_items")), 2)
@@ -1611,7 +1611,7 @@
 	pi.conversion_rate = args.conversion_rate or 1
 	pi.is_return = args.is_return
 	pi.return_against = args.return_against
-	pi.is_subcontracted = args.is_subcontracted or "No"
+	pi.is_subcontracted = args.is_subcontracted or 0
 	pi.supplier_warehouse = args.supplier_warehouse or "_Test Warehouse 1 - _TC"
 	pi.cost_center = args.parent_cost_center
 
@@ -1674,7 +1674,7 @@
 	pi.is_return = args.is_return
 	pi.is_return = args.is_return
 	pi.credit_to = args.return_against or "Creditors - _TC"
-	pi.is_subcontracted = args.is_subcontracted or "No"
+	pi.is_subcontracted = args.is_subcontracted or 0
 	if args.supplier_warehouse:
 		pi.supplier_warehouse = "_Test Warehouse 1 - _TC"
 
diff --git a/erpnext/accounts/doctype/purchase_invoice_item/purchase_invoice_item.json b/erpnext/accounts/doctype/purchase_invoice_item/purchase_invoice_item.json
index f9b2efd..6651195 100644
--- a/erpnext/accounts/doctype/purchase_invoice_item/purchase_invoice_item.json
+++ b/erpnext/accounts/doctype/purchase_invoice_item/purchase_invoice_item.json
@@ -623,7 +623,7 @@
   },
   {
    "default": "0",
-   "depends_on": "eval:parent.is_subcontracted == 'Yes'",
+   "depends_on": "eval:parent.is_subcontracted",
    "fieldname": "include_exploded_items",
    "fieldtype": "Check",
    "label": "Include Exploded Items",
diff --git a/erpnext/accounts/report/tax_detail/test_tax_detail.json b/erpnext/accounts/report/tax_detail/test_tax_detail.json
index 3a4b175..e490316 100644
--- a/erpnext/accounts/report/tax_detail/test_tax_detail.json
+++ b/erpnext/accounts/report/tax_detail/test_tax_detail.json
@@ -302,7 +302,7 @@
   "is_opening": "No",
   "is_paid": 0,
   "is_return": 0,
-  "is_subcontracted": "No",
+  "is_subcontracted": 0,
   "items": [
    {
     "allow_zero_valuation_rate": 0,
diff --git a/erpnext/buying/doctype/purchase_order/purchase_order.js b/erpnext/buying/doctype/purchase_order/purchase_order.js
index 2005dac..c9e6798 100644
--- a/erpnext/buying/doctype/purchase_order/purchase_order.js
+++ b/erpnext/buying/doctype/purchase_order/purchase_order.js
@@ -179,7 +179,7 @@
 				if (doc.status != "On Hold") {
 					if(flt(doc.per_received) < 100 && allow_receipt) {
 						cur_frm.add_custom_button(__('Purchase Receipt'), this.make_purchase_receipt, __('Create'));
-						if(doc.is_subcontracted==="Yes" && me.has_unsupplied_items()) {
+						if(doc.is_subcontracted && me.has_unsupplied_items()) {
 							cur_frm.add_custom_button(__('Material to Supplier'),
 								function() { me.make_stock_entry(); }, __("Transfer"));
 						}
@@ -636,7 +636,7 @@
 frappe.provide("erpnext.buying");
 
 frappe.ui.form.on("Purchase Order", "is_subcontracted", function(frm) {
-	if (frm.doc.is_subcontracted === "Yes") {
+	if (frm.doc.is_subcontracted) {
 		erpnext.buying.get_default_bom(frm);
 	}
 });
diff --git a/erpnext/buying/doctype/purchase_order/purchase_order.json b/erpnext/buying/doctype/purchase_order/purchase_order.json
index 896208f..e4e00d1 100644
--- a/erpnext/buying/doctype/purchase_order/purchase_order.json
+++ b/erpnext/buying/doctype/purchase_order/purchase_order.json
@@ -457,16 +457,15 @@
    "fieldtype": "Column Break"
   },
   {
-   "default": "No",
+   "default": "0",
    "fieldname": "is_subcontracted",
-   "fieldtype": "Select",
+   "fieldtype": "Check",
    "in_standard_filter": 1,
    "label": "Supply Raw Materials",
-   "options": "No\nYes",
    "print_hide": 1
   },
   {
-   "depends_on": "eval:doc.is_subcontracted==\"Yes\"",
+   "depends_on": "eval:doc.is_subcontracted",
    "fieldname": "supplier_warehouse",
    "fieldtype": "Link",
    "label": "Supplier Warehouse",
diff --git a/erpnext/buying/doctype/purchase_order/purchase_order.py b/erpnext/buying/doctype/purchase_order/purchase_order.py
index 582bd8d..5860c4c 100644
--- a/erpnext/buying/doctype/purchase_order/purchase_order.py
+++ b/erpnext/buying/doctype/purchase_order/purchase_order.py
@@ -194,7 +194,7 @@
 				)
 
 	def validate_bom_for_subcontracting_items(self):
-		if self.is_subcontracted == "Yes":
+		if self.is_subcontracted:
 			for item in self.items:
 				if not item.bom:
 					frappe.throw(
@@ -294,7 +294,7 @@
 		self.set_status(update=True, status=status)
 		self.update_requested_qty()
 		self.update_ordered_qty()
-		if self.is_subcontracted == "Yes":
+		if self.is_subcontracted:
 			self.update_reserved_qty_for_subcontract()
 
 		self.notify_update()
@@ -311,7 +311,7 @@
 		self.update_ordered_qty()
 		self.validate_budget()
 
-		if self.is_subcontracted == "Yes":
+		if self.is_subcontracted:
 			self.update_reserved_qty_for_subcontract()
 
 		frappe.get_doc("Authorization Control").validate_approving_authority(
@@ -331,7 +331,7 @@
 		if self.has_drop_ship_item():
 			self.update_delivered_qty_in_sales_order()
 
-		if self.is_subcontracted == "Yes":
+		if self.is_subcontracted:
 			self.update_reserved_qty_for_subcontract()
 
 		self.check_on_hold_or_closed_status()
diff --git a/erpnext/buying/doctype/purchase_order/test_purchase_order.py b/erpnext/buying/doctype/purchase_order/test_purchase_order.py
index e4fb970..1a7f2dd 100644
--- a/erpnext/buying/doctype/purchase_order/test_purchase_order.py
+++ b/erpnext/buying/doctype/purchase_order/test_purchase_order.py
@@ -390,7 +390,7 @@
 		frappe.get_doc("Item Tax Template", "Test Update Items Template - _TC").delete()
 
 	def test_update_child_uom_conv_factor_change(self):
-		po = create_purchase_order(item_code="_Test FG Item", is_subcontracted="Yes")
+		po = create_purchase_order(item_code="_Test FG Item", is_subcontracted=1)
 		total_reqd_qty = sum([d.get("required_qty") for d in po.as_dict().get("supplied_items")])
 
 		trans_item = json.dumps(
@@ -573,7 +573,7 @@
 		automatically_fetch_payment_terms(enable=0)
 
 	def test_subcontracting(self):
-		po = create_purchase_order(item_code="_Test FG Item", is_subcontracted="Yes")
+		po = create_purchase_order(item_code="_Test FG Item", is_subcontracted=1)
 		self.assertEqual(len(po.get("supplied_items")), 2)
 
 	def test_warehouse_company_validation(self):
@@ -617,7 +617,7 @@
 				"doctype": "Purchase Order",
 				"company": "_Test Company",
 				"supplier": "_Test Supplier",
-				"is_subcontracted": "No",
+				"is_subcontracted": 0,
 				"schedule_date": add_days(nowdate(), 1),
 				"currency": frappe.get_cached_value("Company", "_Test Company", "default_currency"),
 				"conversion_factor": 1,
@@ -764,7 +764,7 @@
 		)
 
 		# Submit PO
-		po = create_purchase_order(item_code="_Test FG Item", is_subcontracted="Yes")
+		po = create_purchase_order(item_code="_Test FG Item", is_subcontracted=1)
 
 		bin2 = frappe.db.get_value(
 			"Bin",
@@ -919,7 +919,7 @@
 		po = create_purchase_order(
 			item_code=item_code,
 			qty=1,
-			is_subcontracted="Yes",
+			is_subcontracted=1,
 			supplier_warehouse="_Test Warehouse 1 - _TC",
 			include_exploded_items=1,
 		)
@@ -936,7 +936,7 @@
 		po1 = create_purchase_order(
 			item_code=item_code,
 			qty=1,
-			is_subcontracted="Yes",
+			is_subcontracted=1,
 			supplier_warehouse="_Test Warehouse 1 - _TC",
 			include_exploded_items=0,
 		)
@@ -957,7 +957,7 @@
 		po = create_purchase_order(
 			item_code=item_code,
 			qty=order_qty,
-			is_subcontracted="Yes",
+			is_subcontracted=1,
 			supplier_warehouse="_Test Warehouse 1 - _TC",
 		)
 
@@ -1050,7 +1050,7 @@
 		po = create_purchase_order(
 			item_code=item_code,
 			qty=order_qty,
-			is_subcontracted="Yes",
+			is_subcontracted=1,
 			supplier_warehouse="_Test Warehouse 1 - _TC",
 			do_not_save=True,
 		)
@@ -1283,7 +1283,7 @@
 	po.schedule_date = add_days(nowdate(), 1)
 	po.company = args.company or "_Test Company"
 	po.supplier = args.supplier or "_Test Supplier"
-	po.is_subcontracted = args.is_subcontracted or "No"
+	po.is_subcontracted = args.is_subcontracted or 0
 	po.currency = args.currency or frappe.get_cached_value("Company", po.company, "default_currency")
 	po.conversion_factor = args.conversion_factor or 1
 	po.supplier_warehouse = args.supplier_warehouse or None
@@ -1309,7 +1309,7 @@
 	if not args.do_not_save:
 		po.insert()
 		if not args.do_not_submit:
-			if po.is_subcontracted == "Yes":
+			if po.is_subcontracted:
 				supp_items = po.get("supplied_items")
 				for d in supp_items:
 					if not d.reserve_warehouse:
diff --git a/erpnext/buying/doctype/purchase_order/test_records.json b/erpnext/buying/doctype/purchase_order/test_records.json
index 74b8f1b..896050c 100644
--- a/erpnext/buying/doctype/purchase_order/test_records.json
+++ b/erpnext/buying/doctype/purchase_order/test_records.json
@@ -8,7 +8,7 @@
   "doctype": "Purchase Order", 
   "base_grand_total": 5000.0, 
   "grand_total": 5000.0, 
-  "is_subcontracted": "Yes", 
+  "is_subcontracted": 1, 
   "naming_series": "_T-Purchase Order-", 
   "base_net_total": 5000.0, 
   "items": [
@@ -42,7 +42,7 @@
   "doctype": "Purchase Order", 
   "base_grand_total": 5000.0, 
   "grand_total": 5000.0, 
-  "is_subcontracted": "No", 
+  "is_subcontracted": 0, 
   "naming_series": "_T-Purchase Order-", 
   "base_net_total": 5000.0, 
   "items": [
diff --git a/erpnext/buying/doctype/purchase_order_item/purchase_order_item.json b/erpnext/buying/doctype/purchase_order_item/purchase_order_item.json
index a18c527..f72c598 100644
--- a/erpnext/buying/doctype/purchase_order_item/purchase_order_item.json
+++ b/erpnext/buying/doctype/purchase_order_item/purchase_order_item.json
@@ -572,7 +572,7 @@
    "read_only": 1
   },
   {
-   "depends_on": "eval:parent.is_subcontracted == 'Yes'",
+   "depends_on": "eval:parent.is_subcontracted",
    "fieldname": "bom",
    "fieldtype": "Link",
    "label": "BOM",
@@ -581,7 +581,7 @@
   },
   {
    "default": "0",
-   "depends_on": "eval:parent.is_subcontracted == 'Yes'",
+   "depends_on": "eval:parent.is_subcontracted",
    "fieldname": "include_exploded_items",
    "fieldtype": "Check",
    "label": "Include Exploded Items",
diff --git a/erpnext/buying/doctype/supplier_quotation/supplier_quotation.json b/erpnext/buying/doctype/supplier_quotation/supplier_quotation.json
index 567e41f..8d1939a 100644
--- a/erpnext/buying/doctype/supplier_quotation/supplier_quotation.json
+++ b/erpnext/buying/doctype/supplier_quotation/supplier_quotation.json
@@ -773,11 +773,10 @@
    "fieldtype": "Column Break"
   },
   {
-   "default": "No",
+   "default": "0",
    "fieldname": "is_subcontracted",
-   "fieldtype": "Select",
+   "fieldtype": "Check",
    "label": "Is Subcontracted",
-   "options": "\nYes\nNo",
    "print_hide": 1
   },
   {
diff --git a/erpnext/buying/doctype/supplier_quotation/test_records.json b/erpnext/buying/doctype/supplier_quotation/test_records.json
index 0f835d2..8acac32 100644
--- a/erpnext/buying/doctype/supplier_quotation/test_records.json
+++ b/erpnext/buying/doctype/supplier_quotation/test_records.json
@@ -7,7 +7,7 @@
   "doctype": "Supplier Quotation", 
   "base_grand_total": 5000.0, 
   "grand_total": 5000.0, 
-  "is_subcontracted": "No", 
+  "is_subcontracted": 0, 
   "naming_series": "_T-Supplier Quotation-", 
   "base_net_total": 5000.0, 
   "items": [
diff --git a/erpnext/buying/report/subcontract_order_summary/subcontract_order_summary.js b/erpnext/buying/report/subcontract_order_summary/subcontract_order_summary.js
index 5ba52f1..6889322 100644
--- a/erpnext/buying/report/subcontract_order_summary/subcontract_order_summary.js
+++ b/erpnext/buying/report/subcontract_order_summary/subcontract_order_summary.js
@@ -35,7 +35,7 @@
 				return {
 					filters: {
 						docstatus: 1,
-						is_subcontracted: 'Yes',
+						is_subcontracted: 1,
 						company: frappe.query_report.get_filter_value('company')
 					}
 				}
diff --git a/erpnext/buying/report/subcontract_order_summary/subcontract_order_summary.py b/erpnext/buying/report/subcontract_order_summary/subcontract_order_summary.py
index 1b2705a..3d66637 100644
--- a/erpnext/buying/report/subcontract_order_summary/subcontract_order_summary.py
+++ b/erpnext/buying/report/subcontract_order_summary/subcontract_order_summary.py
@@ -45,7 +45,7 @@
 def get_filters(report_filters):
 	filters = [
 		["Purchase Order", "docstatus", "=", 1],
-		["Purchase Order", "is_subcontracted", "=", "Yes"],
+		["Purchase Order", "is_subcontracted", "=", 1],
 		[
 			"Purchase Order",
 			"transaction_date",
diff --git a/erpnext/buying/report/subcontracted_item_to_be_received/subcontracted_item_to_be_received.py b/erpnext/buying/report/subcontracted_item_to_be_received/subcontracted_item_to_be_received.py
index 004657b..2e90de6 100644
--- a/erpnext/buying/report/subcontracted_item_to_be_received/subcontracted_item_to_be_received.py
+++ b/erpnext/buying/report/subcontracted_item_to_be_received/subcontracted_item_to_be_received.py
@@ -78,7 +78,7 @@
 
 def get_po(filters):
 	record_filters = [
-		["is_subcontracted", "=", "Yes"],
+		["is_subcontracted", "=", 1],
 		["supplier", "=", filters.supplier],
 		["transaction_date", "<=", filters.to_date],
 		["transaction_date", ">=", filters.from_date],
diff --git a/erpnext/buying/report/subcontracted_item_to_be_received/test_subcontracted_item_to_be_received.py b/erpnext/buying/report/subcontracted_item_to_be_received/test_subcontracted_item_to_be_received.py
index 26e4243..57f8741 100644
--- a/erpnext/buying/report/subcontracted_item_to_be_received/test_subcontracted_item_to_be_received.py
+++ b/erpnext/buying/report/subcontracted_item_to_be_received/test_subcontracted_item_to_be_received.py
@@ -17,7 +17,7 @@
 
 class TestSubcontractedItemToBeReceived(FrappeTestCase):
 	def test_pending_and_received_qty(self):
-		po = create_purchase_order(item_code="_Test FG Item", is_subcontracted="Yes")
+		po = create_purchase_order(item_code="_Test FG Item", is_subcontracted=1)
 		transfer_param = []
 		make_stock_entry(
 			item_code="_Test Item", target="_Test Warehouse 1 - _TC", qty=100, basic_rate=100
diff --git a/erpnext/buying/report/subcontracted_raw_materials_to_be_transferred/subcontracted_raw_materials_to_be_transferred.py b/erpnext/buying/report/subcontracted_raw_materials_to_be_transferred/subcontracted_raw_materials_to_be_transferred.py
index 98b18da..6b8a3b1 100644
--- a/erpnext/buying/report/subcontracted_raw_materials_to_be_transferred/subcontracted_raw_materials_to_be_transferred.py
+++ b/erpnext/buying/report/subcontracted_raw_materials_to_be_transferred/subcontracted_raw_materials_to_be_transferred.py
@@ -72,7 +72,7 @@
 		],
 		filters=[
 			["Purchase Order", "per_received", "<", "100"],
-			["Purchase Order", "is_subcontracted", "=", "Yes"],
+			["Purchase Order", "is_subcontracted", "=", 1],
 			["Purchase Order", "supplier", "=", filters.supplier],
 			["Purchase Order", "transaction_date", "<=", filters.to_date],
 			["Purchase Order", "transaction_date", ">=", filters.from_date],
diff --git a/erpnext/buying/report/subcontracted_raw_materials_to_be_transferred/test_subcontracted_raw_materials_to_be_transferred.py b/erpnext/buying/report/subcontracted_raw_materials_to_be_transferred/test_subcontracted_raw_materials_to_be_transferred.py
index 401176d..2791a26 100644
--- a/erpnext/buying/report/subcontracted_raw_materials_to_be_transferred/test_subcontracted_raw_materials_to_be_transferred.py
+++ b/erpnext/buying/report/subcontracted_raw_materials_to_be_transferred/test_subcontracted_raw_materials_to_be_transferred.py
@@ -19,7 +19,7 @@
 class TestSubcontractedItemToBeTransferred(FrappeTestCase):
 	def test_pending_and_transferred_qty(self):
 		po = create_purchase_order(
-			item_code="_Test FG Item", is_subcontracted="Yes", supplier_warehouse="_Test Warehouse 1 - _TC"
+			item_code="_Test FG Item", is_subcontracted=1, supplier_warehouse="_Test Warehouse 1 - _TC"
 		)
 
 		# Material Receipt of RMs
diff --git a/erpnext/controllers/accounts_controller.py b/erpnext/controllers/accounts_controller.py
index 3a20d3f..8a9318e 100644
--- a/erpnext/controllers/accounts_controller.py
+++ b/erpnext/controllers/accounts_controller.py
@@ -2586,7 +2586,7 @@
 		parent.update_ordered_qty()
 		parent.update_ordered_and_reserved_qty()
 		parent.update_receiving_percentage()
-		if parent.is_subcontracted == "Yes":
+		if parent.is_subcontracted:
 			parent.update_reserved_qty_for_subcontract()
 			parent.create_raw_materials_supplied("supplied_items")
 			parent.save()
diff --git a/erpnext/controllers/buying_controller.py b/erpnext/controllers/buying_controller.py
index 4789207..c0fd83e 100644
--- a/erpnext/controllers/buying_controller.py
+++ b/erpnext/controllers/buying_controller.py
@@ -167,7 +167,7 @@
 					_("Row #{0}: Accepted Warehouse and Supplier Warehouse cannot be same").format(item.idx)
 				)
 
-			if item.get("from_warehouse") and self.get("is_subcontracted") == "Yes":
+			if item.get("from_warehouse") and self.get("is_subcontracted"):
 				frappe.throw(
 					_(
 						"Row #{0}: Cannot select Supplier Warehouse while suppling raw materials to subcontractor"
@@ -342,7 +342,7 @@
 		if not self.is_subcontracted and self.sub_contracted_items:
 			frappe.throw(_("Please enter 'Is Subcontracted' as Yes or No"))
 
-		if self.is_subcontracted == "Yes":
+		if self.is_subcontracted:
 			if self.doctype in ["Purchase Receipt", "Purchase Invoice"] and not self.supplier_warehouse:
 				frappe.throw(_("Supplier Warehouse mandatory for sub-contracted {0}").format(self.doctype))
 
@@ -363,14 +363,14 @@
 					item.bom = None
 
 	def create_raw_materials_supplied(self, raw_material_table):
-		if self.is_subcontracted == "Yes":
+		if self.is_subcontracted:
 			self.set_materials_for_subcontracted_items(raw_material_table)
 
 		elif self.doctype in ["Purchase Receipt", "Purchase Invoice"]:
 			for item in self.get("items"):
 				item.rm_supp_cost = 0.0
 
-		if self.is_subcontracted == "No" and self.get("supplied_items"):
+		if not self.is_subcontracted and self.get("supplied_items"):
 			self.set("supplied_items", [])
 
 	@property
@@ -803,7 +803,7 @@
 		if self.doctype == "Material Request":
 			return
 
-		if hasattr(self, "is_subcontracted") and self.is_subcontracted == "Yes":
+		if hasattr(self, "is_subcontracted") and self.is_subcontracted:
 			validate_item_type(self, "is_sub_contracted_item", "subcontracted")
 		else:
 			validate_item_type(self, "is_purchase_item", "purchase")
diff --git a/erpnext/controllers/subcontracting.py b/erpnext/controllers/subcontracting.py
index 7083088..4bce06f 100644
--- a/erpnext/controllers/subcontracting.py
+++ b/erpnext/controllers/subcontracting.py
@@ -407,7 +407,7 @@
 
 	def set_consumed_qty_in_po(self):
 		# Update consumed qty back in the purchase order
-		if self.is_subcontracted != "Yes":
+		if not self.is_subcontracted:
 			return
 
 		self.__get_purchase_orders()
diff --git a/erpnext/manufacturing/doctype/bom/test_bom.py b/erpnext/manufacturing/doctype/bom/test_bom.py
index 524f45b..62fc072 100644
--- a/erpnext/manufacturing/doctype/bom/test_bom.py
+++ b/erpnext/manufacturing/doctype/bom/test_bom.py
@@ -251,7 +251,7 @@
 		self.assertEqual(bom.items[2].rate, 0)
 		# test in Purchase Order sourced_by_supplier is not added to Supplied Item
 		po = create_purchase_order(
-			item_code=item_code, qty=1, is_subcontracted="Yes", supplier_warehouse="_Test Warehouse 1 - _TC"
+			item_code=item_code, qty=1, is_subcontracted=1, supplier_warehouse="_Test Warehouse 1 - _TC"
 		)
 		bom_items = sorted([d.item_code for d in bom.items if d.sourced_by_supplier != 1])
 		supplied_items = sorted([d.rm_item_code for d in po.supplied_items])
diff --git a/erpnext/manufacturing/doctype/production_plan/production_plan.py b/erpnext/manufacturing/doctype/production_plan/production_plan.py
index 89f9ca6..60b32b8 100644
--- a/erpnext/manufacturing/doctype/production_plan/production_plan.py
+++ b/erpnext/manufacturing/doctype/production_plan/production_plan.py
@@ -501,7 +501,7 @@
 			po = frappe.new_doc("Purchase Order")
 			po.supplier = supplier
 			po.schedule_date = getdate(po_list[0].schedule_date) if po_list[0].schedule_date else nowdate()
-			po.is_subcontracted = "Yes"
+			po.is_subcontracted = 1
 			for row in po_list:
 				po_data = {
 					"item_code": row.production_item,
diff --git a/erpnext/patches.txt b/erpnext/patches.txt
index 028834a..0b7dd02 100644
--- a/erpnext/patches.txt
+++ b/erpnext/patches.txt
@@ -334,6 +334,7 @@
 erpnext.patches.v13_0.enable_provisional_accounting
 erpnext.patches.v13_0.non_profit_deprecation_warning
 erpnext.patches.v13_0.enable_ksa_vat_docs #1
+erpnext.patches.v14_0.change_is_subcontracted_fieldtype
 
 [post_model_sync]
 erpnext.patches.v14_0.rename_ongoing_status_in_sla_documents
@@ -362,4 +363,4 @@
 erpnext.patches.v13_0.add_cost_center_in_loans
 erpnext.patches.v13_0.set_return_against_in_pos_invoice_references
 erpnext.patches.v13_0.remove_unknown_links_to_prod_plan_items # 24-03-2022
-erpnext.patches.v13_0.update_expense_claim_status_for_paid_advances
+erpnext.patches.v13_0.update_expense_claim_status_for_paid_advances
\ No newline at end of file
diff --git a/erpnext/patches/v14_0/change_is_subcontracted_fieldtype.py b/erpnext/patches/v14_0/change_is_subcontracted_fieldtype.py
new file mode 100644
index 0000000..ba919a7
--- /dev/null
+++ b/erpnext/patches/v14_0/change_is_subcontracted_fieldtype.py
@@ -0,0 +1,26 @@
+# Copyright (c) 2022, Frappe Technologies Pvt. Ltd. and contributors
+# For license information, please see license.txt
+
+import frappe
+
+
+def execute():
+	for doctype in ["Purchase Order", "Purchase Receipt", "Purchase Invoice", "Supplier Quotation"]:
+		frappe.db.sql(
+			"""
+				UPDATE `tab{doctype}`
+				SET is_subcontracted = 0
+				where is_subcontracted in ('', NULL, 'No')""".format(
+				doctype=doctype
+			)
+		)
+		frappe.db.sql(
+			"""
+				UPDATE `tab{doctype}`
+				SET is_subcontracted = 1
+				where is_subcontracted = 'Yes'""".format(
+				doctype=doctype
+			)
+		)
+
+		frappe.reload_doc(frappe.get_meta(doctype).module, "doctype", frappe.scrub(doctype))
diff --git a/erpnext/public/js/controllers/buying.js b/erpnext/public/js/controllers/buying.js
index 54e5daa..bbf1ff6 100644
--- a/erpnext/public/js/controllers/buying.js
+++ b/erpnext/public/js/controllers/buying.js
@@ -81,7 +81,7 @@
 		}
 
 		this.frm.set_query("item_code", "items", function() {
-			if (me.frm.doc.is_subcontracted == "Yes") {
+			if (me.frm.doc.is_subcontracted) {
 				return{
 					query: "erpnext.controllers.queries.item_query",
 					filters:{ 'supplier': me.frm.doc.supplier, 'is_sub_contracted_item': 1 }
diff --git a/erpnext/public/js/controllers/transaction.js b/erpnext/public/js/controllers/transaction.js
index 23c2bd4..57cbe91 100644
--- a/erpnext/public/js/controllers/transaction.js
+++ b/erpnext/public/js/controllers/transaction.js
@@ -239,7 +239,7 @@
 				() => set_value('currency', currency),
 				() => set_value('price_list_currency', currency),
 				() => set_value('status', 'Draft'),
-				() => set_value('is_subcontracted', 'No'),
+				() => set_value('is_subcontracted', 0),
 				() => {
 					if(this.frm.doc.company && !this.frm.doc.amended_from) {
 						this.frm.trigger("company");
diff --git a/erpnext/public/js/utils.js b/erpnext/public/js/utils.js
index 9339c5d..eded165 100755
--- a/erpnext/public/js/utils.js
+++ b/erpnext/public/js/utils.js
@@ -483,7 +483,7 @@
 			if (frm.doc.doctype == 'Sales Order') {
 				filters = {"is_sales_item": 1};
 			} else if (frm.doc.doctype == 'Purchase Order') {
-				if (frm.doc.is_subcontracted == "Yes") {
+				if (frm.doc.is_subcontracted) {
 					filters = {"is_sub_contracted_item": 1};
 				} else {
 					filters = {"is_purchase_item": 1};
diff --git a/erpnext/stock/doctype/bin/bin.py b/erpnext/stock/doctype/bin/bin.py
index 6cb9f7e..6ea4525 100644
--- a/erpnext/stock/doctype/bin/bin.py
+++ b/erpnext/stock/doctype/bin/bin.py
@@ -54,7 +54,7 @@
 				(supplied_item.rm_item_code == self.item_code)
 				& (po.name == supplied_item.parent)
 				& (po.docstatus == 1)
-				& (po.is_subcontracted == "Yes")
+				& (po.is_subcontracted)
 				& (po.status != "Closed")
 				& (po.per_received < 100)
 				& (supplied_item.reserve_warehouse == self.warehouse)
@@ -79,7 +79,7 @@
 				& (se.name == se_item.parent)
 				& (po.name == se.purchase_order)
 				& (po.docstatus == 1)
-				& (po.is_subcontracted == "Yes")
+				& (po.is_subcontracted == 1)
 				& (po.status != "Closed")
 				& (po.per_received < 100)
 			)
diff --git a/erpnext/stock/doctype/item_alternative/test_item_alternative.py b/erpnext/stock/doctype/item_alternative/test_item_alternative.py
index d829b2c..32c58c5 100644
--- a/erpnext/stock/doctype/item_alternative/test_item_alternative.py
+++ b/erpnext/stock/doctype/item_alternative/test_item_alternative.py
@@ -41,7 +41,7 @@
 		supplier_warehouse = "Test Supplier Warehouse - _TC"
 		po = create_purchase_order(
 			item="Test Finished Goods - A",
-			is_subcontracted="Yes",
+			is_subcontracted=1,
 			qty=5,
 			rate=3000,
 			supplier_warehouse=supplier_warehouse,
diff --git a/erpnext/stock/doctype/purchase_receipt/purchase_receipt.js b/erpnext/stock/doctype/purchase_receipt/purchase_receipt.js
index 0182ed5..51ec598 100644
--- a/erpnext/stock/doctype/purchase_receipt/purchase_receipt.js
+++ b/erpnext/stock/doctype/purchase_receipt/purchase_receipt.js
@@ -200,7 +200,7 @@
 			cur_frm.add_custom_button(__('Reopen'), this.reopen_purchase_receipt, __("Status"))
 		}
 
-		this.frm.toggle_reqd("supplier_warehouse", this.frm.doc.is_subcontracted==="Yes");
+		this.frm.toggle_reqd("supplier_warehouse", this.frm.doc.is_subcontracted);
 	}
 
 	make_purchase_invoice() {
@@ -298,10 +298,10 @@
 frappe.provide("erpnext.buying");
 
 frappe.ui.form.on("Purchase Receipt", "is_subcontracted", function(frm) {
-	if (frm.doc.is_subcontracted === "Yes") {
+	if (frm.doc.is_subcontracted) {
 		erpnext.buying.get_default_bom(frm);
 	}
-	frm.toggle_reqd("supplier_warehouse", frm.doc.is_subcontracted==="Yes");
+	frm.toggle_reqd("supplier_warehouse", frm.doc.is_subcontracted);
 });
 
 frappe.ui.form.on('Purchase Receipt Item', {
diff --git a/erpnext/stock/doctype/purchase_receipt/purchase_receipt.json b/erpnext/stock/doctype/purchase_receipt/purchase_receipt.json
index 6d4b4a1..e4e4d15 100755
--- a/erpnext/stock/doctype/purchase_receipt/purchase_receipt.json
+++ b/erpnext/stock/doctype/purchase_receipt/purchase_receipt.json
@@ -437,17 +437,16 @@
    "fieldtype": "Column Break"
   },
   {
-   "default": "No",
+   "default": "0",
    "fieldname": "is_subcontracted",
-   "fieldtype": "Select",
+   "fieldtype": "Check",
    "label": "Raw Materials Consumed",
    "oldfieldname": "is_subcontracted",
    "oldfieldtype": "Select",
-   "options": "No\nYes",
    "print_hide": 1
   },
   {
-   "depends_on": "eval:doc.is_subcontracted==\"Yes\"",
+   "depends_on": "eval:doc.is_subcontracted",
    "fieldname": "supplier_warehouse",
    "fieldtype": "Link",
    "label": "Supplier Warehouse",
diff --git a/erpnext/stock/doctype/purchase_receipt/test_purchase_receipt.py b/erpnext/stock/doctype/purchase_receipt/test_purchase_receipt.py
index a6f82b0..bfbdd56 100644
--- a/erpnext/stock/doctype/purchase_receipt/test_purchase_receipt.py
+++ b/erpnext/stock/doctype/purchase_receipt/test_purchase_receipt.py
@@ -327,7 +327,7 @@
 			target="_Test Warehouse 1 - _TC",
 			basic_rate=100,
 		)
-		pr = make_purchase_receipt(item_code="_Test FG Item", qty=10, rate=500, is_subcontracted="Yes")
+		pr = make_purchase_receipt(item_code="_Test FG Item", qty=10, rate=500, is_subcontracted=1)
 		self.assertEqual(len(pr.get("supplied_items")), 2)
 
 		rm_supp_cost = sum(d.amount for d in pr.get("supplied_items"))
@@ -362,7 +362,7 @@
 			item_code="_Test FG Item",
 			qty=10,
 			rate=0,
-			is_subcontracted="Yes",
+			is_subcontracted=1,
 			company="_Test Company with perpetual inventory",
 			warehouse="Stores - TCP1",
 			supplier_warehouse="Work In Progress - TCP1",
@@ -401,7 +401,7 @@
 			item_code=item_code,
 			qty=1,
 			include_exploded_items=0,
-			is_subcontracted="Yes",
+			is_subcontracted=1,
 			supplier_warehouse="_Test Warehouse 1 - _TC",
 		)
 
@@ -1122,7 +1122,7 @@
 		po = create_purchase_order(
 			item_code=item_code,
 			qty=order_qty,
-			is_subcontracted="Yes",
+			is_subcontracted=1,
 			supplier_warehouse="_Test Warehouse 1 - _TC",
 		)
 
@@ -1465,7 +1465,7 @@
 		pr.set_posting_time = 1
 	pr.company = args.company or "_Test Company"
 	pr.supplier = args.supplier or "_Test Supplier"
-	pr.is_subcontracted = args.is_subcontracted or "No"
+	pr.is_subcontracted = args.is_subcontracted or 0
 	pr.supplier_warehouse = args.supplier_warehouse or "_Test Warehouse 1 - _TC"
 	pr.currency = args.currency or "INR"
 	pr.is_return = args.is_return
diff --git a/erpnext/stock/doctype/purchase_receipt/test_records.json b/erpnext/stock/doctype/purchase_receipt/test_records.json
index 724e3d7..990ad12 100644
--- a/erpnext/stock/doctype/purchase_receipt/test_records.json
+++ b/erpnext/stock/doctype/purchase_receipt/test_records.json
@@ -92,7 +92,7 @@
   "currency": "INR",
   "doctype": "Purchase Receipt",
   "base_grand_total": 5000.0,
-  "is_subcontracted": "Yes",
+  "is_subcontracted": 1,
   "base_net_total": 5000.0,
   "items": [
    {
diff --git a/erpnext/stock/doctype/purchase_receipt_item/purchase_receipt_item.json b/erpnext/stock/doctype/purchase_receipt_item/purchase_receipt_item.json
index e5994b2..03a4201 100644
--- a/erpnext/stock/doctype/purchase_receipt_item/purchase_receipt_item.json
+++ b/erpnext/stock/doctype/purchase_receipt_item/purchase_receipt_item.json
@@ -648,7 +648,7 @@
   },
   {
    "default": "0",
-   "depends_on": "eval:parent.is_subcontracted == 'Yes'",
+   "depends_on": "eval:parent.is_subcontracted",
    "fieldname": "include_exploded_items",
    "fieldtype": "Check",
    "label": "Include Exploded Items",
diff --git a/erpnext/stock/doctype/stock_entry/stock_entry.js b/erpnext/stock/doctype/stock_entry/stock_entry.js
index 1aafcee..a940878 100644
--- a/erpnext/stock/doctype/stock_entry/stock_entry.js
+++ b/erpnext/stock/doctype/stock_entry/stock_entry.js
@@ -793,7 +793,7 @@
 			return {
 				"filters": {
 					"docstatus": 1,
-					"is_subcontracted": "Yes",
+					"is_subcontracted": 1,
 					"company": me.frm.doc.company
 				}
 			};
diff --git a/erpnext/stock/doctype/stock_ledger_entry/test_stock_ledger_entry.py b/erpnext/stock/doctype/stock_ledger_entry/test_stock_ledger_entry.py
index 42956a1..6561362 100644
--- a/erpnext/stock/doctype/stock_ledger_entry/test_stock_ledger_entry.py
+++ b/erpnext/stock/doctype/stock_ledger_entry/test_stock_ledger_entry.py
@@ -436,7 +436,7 @@
 			item_code=subcontracted_item,
 			qty=10,
 			rate=20,
-			is_subcontracted="Yes",
+			is_subcontracted=1,
 		)
 
 		self.assertEqual(pr1.items[0].valuation_rate, 120)
diff --git a/erpnext/stock/get_item_details.py b/erpnext/stock/get_item_details.py
index f72588e..b75bc72 100644
--- a/erpnext/stock/get_item_details.py
+++ b/erpnext/stock/get_item_details.py
@@ -50,7 +50,7 @@
 	        "transaction_date": None,
 	        "conversion_rate": 1.0,
 	        "buying_price_list": None,
-	        "is_subcontracted": "Yes" / "No",
+	        "is_subcontracted": 0/1,
 	        "ignore_pricing_rule": 0/1
 	        "project": ""
 	        "set_warehouse": ""
@@ -124,7 +124,7 @@
 	if args.transaction_date and item.lead_time_days:
 		out.schedule_date = out.lead_time_date = add_days(args.transaction_date, item.lead_time_days)
 
-	if args.get("is_subcontracted") == "Yes":
+	if args.get("is_subcontracted"):
 		out.bom = args.get("bom") or get_default_bom(args.item_code)
 
 	get_gross_profit(out)
@@ -237,7 +237,7 @@
 		throw(_("Item {0} is a template, please select one of its variants").format(item.name))
 
 	elif args.transaction_type == "buying" and args.doctype != "Material Request":
-		if args.get("is_subcontracted") == "Yes" and item.is_sub_contracted_item != 1:
+		if args.get("is_subcontracted") and item.is_sub_contracted_item != 1:
 			throw(_("Item {0} must be a Sub-contracted Item").format(item.name))
 
 
@@ -258,7 +258,7 @@
 	                "transaction_date": None,
 	                "conversion_rate": 1.0,
 	                "buying_price_list": None,
-	                "is_subcontracted": "Yes" / "No",
+	                "is_subcontracted": 0/1,
 	                "ignore_pricing_rule": 0/1
 	                "project": "",
 	                barcode: "",
diff --git a/erpnext/stock/stock_ledger.py b/erpnext/stock/stock_ledger.py
index 967b2b2..3e0ddab 100644
--- a/erpnext/stock/stock_ledger.py
+++ b/erpnext/stock/stock_ledger.py
@@ -715,7 +715,7 @@
 			)
 
 		# Recalculate subcontracted item's rate in case of subcontracted purchase receipt/invoice
-		if frappe.get_cached_value(sle.voucher_type, sle.voucher_no, "is_subcontracted") == "Yes":
+		if frappe.get_cached_value(sle.voucher_type, sle.voucher_no, "is_subcontracted"):
 			doc = frappe.get_doc(sle.voucher_type, sle.voucher_no)
 			doc.update_valuation_rate(reset_outgoing_rate=False)
 			for d in doc.items + doc.supplied_items:
diff --git a/erpnext/tests/test_subcontracting.py b/erpnext/tests/test_subcontracting.py
index 07291e8..bf12181 100644
--- a/erpnext/tests/test_subcontracting.py
+++ b/erpnext/tests/test_subcontracting.py
@@ -50,7 +50,7 @@
 
 		itemwise_details = make_stock_in_entry(rm_items=rm_items)
 		po = create_purchase_order(
-			rm_items=items, is_subcontracted="Yes", supplier_warehouse="_Test Warehouse 1 - _TC"
+			rm_items=items, is_subcontracted=1, supplier_warehouse="_Test Warehouse 1 - _TC"
 		)
 
 		for d in rm_items:
@@ -112,7 +112,7 @@
 
 		itemwise_details = make_stock_in_entry(rm_items=rm_items)
 		po = create_purchase_order(
-			rm_items=items, is_subcontracted="Yes", supplier_warehouse="_Test Warehouse 1 - _TC"
+			rm_items=items, is_subcontracted=1, supplier_warehouse="_Test Warehouse 1 - _TC"
 		)
 
 		for d in rm_items:
@@ -175,7 +175,7 @@
 
 		itemwise_details = make_stock_in_entry(rm_items=rm_items)
 		po = create_purchase_order(
-			rm_items=items, is_subcontracted="Yes", supplier_warehouse="_Test Warehouse 1 - _TC"
+			rm_items=items, is_subcontracted=1, supplier_warehouse="_Test Warehouse 1 - _TC"
 		)
 
 		for d in rm_items:
@@ -239,7 +239,7 @@
 
 		itemwise_details = make_stock_in_entry(rm_items=rm_items)
 		po = create_purchase_order(
-			rm_items=items, is_subcontracted="Yes", supplier_warehouse="_Test Warehouse 1 - _TC"
+			rm_items=items, is_subcontracted=1, supplier_warehouse="_Test Warehouse 1 - _TC"
 		)
 
 		for d in rm_items:
@@ -298,7 +298,7 @@
 
 		itemwise_details = make_stock_in_entry(rm_items=rm_items)
 		po = create_purchase_order(
-			rm_items=items, is_subcontracted="Yes", supplier_warehouse="_Test Warehouse 1 - _TC"
+			rm_items=items, is_subcontracted=1, supplier_warehouse="_Test Warehouse 1 - _TC"
 		)
 
 		for d in rm_items:
@@ -363,7 +363,7 @@
 
 		itemwise_details = make_stock_in_entry(rm_items=rm_items)
 		po = create_purchase_order(
-			rm_items=items, is_subcontracted="Yes", supplier_warehouse="_Test Warehouse 1 - _TC"
+			rm_items=items, is_subcontracted=1, supplier_warehouse="_Test Warehouse 1 - _TC"
 		)
 
 		for d in rm_items:
@@ -421,7 +421,7 @@
 
 		itemwise_details = make_stock_in_entry(rm_items=rm_items)
 		po = create_purchase_order(
-			rm_items=items, is_subcontracted="Yes", supplier_warehouse="_Test Warehouse 1 - _TC"
+			rm_items=items, is_subcontracted=1, supplier_warehouse="_Test Warehouse 1 - _TC"
 		)
 
 		for d in rm_items:
@@ -492,7 +492,7 @@
 
 		itemwise_details = make_stock_in_entry(rm_items=rm_items)
 		po = create_purchase_order(
-			rm_items=items, is_subcontracted="Yes", supplier_warehouse="_Test Warehouse 1 - _TC"
+			rm_items=items, is_subcontracted=1, supplier_warehouse="_Test Warehouse 1 - _TC"
 		)
 
 		for d in rm_items:
@@ -529,7 +529,7 @@
 
 		itemwise_details = make_stock_in_entry(rm_items=rm_items)
 		po = create_purchase_order(
-			rm_items=items, is_subcontracted="Yes", supplier_warehouse="_Test Warehouse 1 - _TC"
+			rm_items=items, is_subcontracted=1, supplier_warehouse="_Test Warehouse 1 - _TC"
 		)
 
 		for d in rm_items:
@@ -609,7 +609,7 @@
 
 		itemwise_details = make_stock_in_entry(rm_items=rm_items)
 		po = create_purchase_order(
-			rm_items=items, is_subcontracted="Yes", supplier_warehouse="_Test Warehouse 1 - _TC"
+			rm_items=items, is_subcontracted=1, supplier_warehouse="_Test Warehouse 1 - _TC"
 		)
 
 		for d in rm_items:
@@ -675,7 +675,7 @@
 
 		itemwise_details = make_stock_in_entry(rm_items=rm_items)
 		po = create_purchase_order(
-			rm_items=items, is_subcontracted="Yes", supplier_warehouse="_Test Warehouse 1 - _TC"
+			rm_items=items, is_subcontracted=1, supplier_warehouse="_Test Warehouse 1 - _TC"
 		)
 
 		for d in rm_items:
@@ -751,7 +751,7 @@
 
 		itemwise_details = make_stock_in_entry(rm_items=rm_items)
 		po = create_purchase_order(
-			rm_items=items, is_subcontracted="Yes", supplier_warehouse="_Test Warehouse 1 - _TC"
+			rm_items=items, is_subcontracted=1, supplier_warehouse="_Test Warehouse 1 - _TC"
 		)
 
 		for d in rm_items:
@@ -834,7 +834,7 @@
 
 		itemwise_details = make_stock_in_entry(rm_items=rm_items)
 		po = create_purchase_order(
-			rm_items=items, is_subcontracted="Yes", supplier_warehouse="_Test Warehouse 1 - _TC"
+			rm_items=items, is_subcontracted=1, supplier_warehouse="_Test Warehouse 1 - _TC"
 		)
 
 		for d in rm_items: