diff --git a/accounts/doctype/purchase_invoice/purchase_invoice.py b/accounts/doctype/purchase_invoice/purchase_invoice.py
index c79bfd6..a562c67 100644
--- a/accounts/doctype/purchase_invoice/purchase_invoice.py
+++ b/accounts/doctype/purchase_invoice/purchase_invoice.py
@@ -88,14 +88,6 @@
 		super(DocType, self).get_advances(self.doc.credit_to, 
 			"Purchase Invoice Advance", "advance_allocation_details", "debit")
 		
-	def get_rate(self,arg):
-		return get_obj('Purchase Common').get_rate(arg,self)
-
-	def get_rate1(self,acc):
-		rate = webnotes.conn.sql("select tax_rate from `tabAccount` where name='%s'"%(acc))
-		ret={'add_tax_rate' :rate and flt(rate[0][0]) or 0 }
-		return ret
-
 	def check_active_purchase_items(self):
 		for d in getlist(self.doclist, 'entries'):
 			if d.item_code:		# extra condn coz item_code is not mandatory in PV
diff --git a/accounts/doctype/purchase_taxes_and_charges_master/purchase_taxes_and_charges_master.js b/accounts/doctype/purchase_taxes_and_charges_master/purchase_taxes_and_charges_master.js
index 423c4e4..3368773 100644
--- a/accounts/doctype/purchase_taxes_and_charges_master/purchase_taxes_and_charges_master.js
+++ b/accounts/doctype/purchase_taxes_and_charges_master/purchase_taxes_and_charges_master.js
@@ -4,6 +4,8 @@
 // 
 
 //--------- ONLOAD -------------
+wn.require("app/js/controllers/accounts.js");
+
 cur_frm.cscript.onload = function(doc, cdt, cdn) {
    
 }
@@ -134,20 +136,6 @@
   }
 }
 
-cur_frm.cscript.account_head = function(doc, cdt, cdn) {
-  var d = locals[cdt][cdn];
-  if(!d.charge_type && d.account_head){
-    alert("Please select Charge Type first");
-    validated = false;
-    d.account_head = '';
-  }
-  else if(d.account_head && d.charge_type) {
-    arg = "{'charge_type' : '" + d.charge_type + "', 'account_head' : '" + d.account_head + "'}";
-    return get_server_fields('get_rate', arg, 'purchase_tax_details', doc, cdt, cdn, 1);
-  }
-  refresh_field('account_head',d.name,'purchase_tax_details');
-}
-
 cur_frm.cscript.rate = function(doc, cdt, cdn) {
   var d = locals[cdt][cdn];
   if(!d.charge_type && d.rate) {
diff --git a/accounts/doctype/purchase_taxes_and_charges_master/purchase_taxes_and_charges_master.py b/accounts/doctype/purchase_taxes_and_charges_master/purchase_taxes_and_charges_master.py
index 0a32fb9..3d003f6 100644
--- a/accounts/doctype/purchase_taxes_and_charges_master/purchase_taxes_and_charges_master.py
+++ b/accounts/doctype/purchase_taxes_and_charges_master/purchase_taxes_and_charges_master.py
@@ -14,9 +14,4 @@
 class DocType:
 	def __init__(self, doc, doclist=[]):
 		self.doc = doc
-		self.doclist = doclist
-
-	# Get Tax Rate if account type is Tax
-	# ===================================================================
-	def get_rate(self, arg):
-		return get_obj('Purchase Common').get_rate(arg, self)
\ No newline at end of file
+		self.doclist = doclist
\ No newline at end of file
diff --git a/accounts/doctype/sales_invoice/sales_invoice.py b/accounts/doctype/sales_invoice/sales_invoice.py
index 5c7597c..92c1680 100644
--- a/accounts/doctype/sales_invoice/sales_invoice.py
+++ b/accounts/doctype/sales_invoice/sales_invoice.py
@@ -264,13 +264,7 @@
 
 	def get_adj_percent(self, arg=''):
 		"""Fetch ref rate from item master as per selected price list"""
-		get_obj('Sales Common').get_adj_percent(self)
-
-
-	def get_rate(self,arg):
-		"""Get tax rate if account type is tax"""
-		get_obj('Sales Common').get_rate(arg)
-		
+		get_obj('Sales Common').get_adj_percent(self)		
 		
 	def get_comm_rate(self, sales_partner):
 		"""Get Commission rate of Sales Partner"""
diff --git a/accounts/doctype/sales_taxes_and_charges_master/sales_taxes_and_charges_master.js b/accounts/doctype/sales_taxes_and_charges_master/sales_taxes_and_charges_master.js
index f1a6027..d8f55fd 100644
--- a/accounts/doctype/sales_taxes_and_charges_master/sales_taxes_and_charges_master.js
+++ b/accounts/doctype/sales_taxes_and_charges_master/sales_taxes_and_charges_master.js
@@ -2,6 +2,9 @@
 // License: GNU General Public License v3. See license.txt
 
 //--------- ONLOAD -------------
+
+wn.require("app/js/controllers/accounts.js");
+
 cur_frm.cscript.onload = function(doc, cdt, cdn) {
 	if(doc.doctype === "Sales Taxes and Charges Master")
 		erpnext.add_for_territory();
@@ -142,21 +145,6 @@
 	}	
 }
 
-
-cur_frm.cscript.account_head = function(doc, cdt, cdn) {
-	var d = locals[cdt][cdn];
-	if(!d.charge_type && d.account_head){
-		alert("Please select Charge Type first");
-		validated = false;
-		d.account_head = '';
-	}
-	else if(d.account_head && d.charge_type) {
-		arg = "{'charge_type' : '" + d.charge_type +"', 'account_head' : '" + d.account_head + "'}";
-		return get_server_fields('get_rate', arg, 'other_charges', doc, cdt, cdn, 1);
-	}
-	refresh_field('account_head',d.name,'other_charges');
-}
-
 cur_frm.cscript.rate = function(doc, cdt, cdn) {
 	var d = locals[cdt][cdn];
 	if(!d.charge_type && d.rate) {
diff --git a/accounts/doctype/sales_taxes_and_charges_master/sales_taxes_and_charges_master.py b/accounts/doctype/sales_taxes_and_charges_master/sales_taxes_and_charges_master.py
index 019edcb..67ba9cb 100644
--- a/accounts/doctype/sales_taxes_and_charges_master/sales_taxes_and_charges_master.py
+++ b/accounts/doctype/sales_taxes_and_charges_master/sales_taxes_and_charges_master.py
@@ -6,11 +6,7 @@
 from webnotes.utils import cint
 from webnotes.model.controller import DocListController
 
-class DocType(DocListController):
-	def get_rate(self, arg):
-		from webnotes.model.code import get_obj
-		return get_obj('Sales Common').get_rate(arg)
-		
+class DocType(DocListController):		
 	def validate(self):
 		if self.doc.is_default == 1:
 			webnotes.conn.sql("""update `tabSales Taxes and Charges Master` set is_default = 0 
diff --git a/buying/doctype/purchase_common/purchase_common.js b/buying/doctype/purchase_common/purchase_common.js
index 433a76f..023c7f3 100644
--- a/buying/doctype/purchase_common/purchase_common.js
+++ b/buying/doctype/purchase_common/purchase_common.js
@@ -8,6 +8,7 @@
 
 wn.provide("erpnext.buying");
 wn.require("app/js/transaction.js");
+wn.require("app/js/controllers/accounts.js");
 
 erpnext.buying.BuyingController = erpnext.TransactionController.extend({
 	onload: function() {
diff --git a/buying/doctype/purchase_common/purchase_common.py b/buying/doctype/purchase_common/purchase_common.py
index c05aba4..1d57f88 100644
--- a/buying/doctype/purchase_common/purchase_common.py
+++ b/buying/doctype/purchase_common/purchase_common.py
@@ -36,13 +36,6 @@
 			msgprint("Supplier : %s does not exists" % (name))
 			raise Exception
 	
-	# Get Available Qty at Warehouse
-	def get_bin_details( self, arg = ''):
-		arg = eval(arg)
-		bin = webnotes.conn.sql("select projected_qty from `tabBin` where item_code = %s and warehouse = %s", (arg['item_code'], arg['warehouse']), as_dict=1)
-		ret = { 'projected_qty' : bin and flt(bin[0]['projected_qty']) or 0 }
-		return ret
-
 	def update_last_purchase_rate(self, obj, is_submit):
 		"""updates last_purchase_rate in item table for each item"""
 		
@@ -197,14 +190,6 @@
 				msgprint(cstr(doctype) + ": " + cstr(submitted[0][0]) 
 					+ _(" not submitted"), raise_exception=1)
 
-	def get_rate(self, arg, obj):
-		arg = eval(arg)
-		rate = webnotes.conn.sql("select account_type, tax_rate from `tabAccount` where name = %s" 
-			, (arg['account_head']), as_dict=1)
-		
-		return {'rate':	rate and (rate[0]['account_type'] == 'Tax' \
-			and not arg['charge_type'] == 'Actual') and flt(rate[0]['tax_rate']) or 0 }
-
 	def get_prevdoc_date(self, obj):
 		for d in getlist(obj.doclist, obj.fname):
 			if d.prevdoc_doctype and d.prevdoc_docname:
diff --git a/buying/doctype/purchase_order/purchase_order.py b/buying/doctype/purchase_order/purchase_order.py
index 3389f74..dc75466 100644
--- a/buying/doctype/purchase_order/purchase_order.py
+++ b/buying/doctype/purchase_order/purchase_order.py
@@ -65,10 +65,6 @@
 			}
 		})
 
-	# get available qty at warehouse
-	def get_bin_details(self, arg = ''):
-		return get_obj(dt='Purchase Common').get_bin_details(arg)
-
 	def get_schedule_dates(self):
 		for d in getlist(self.doclist, 'po_details'):
 			if d.prevdoc_detail_docname and not d.schedule_date:
@@ -185,9 +181,6 @@
 	def on_update(self):
 		pass
 		
-	def get_rate(self,arg):
-		return get_obj('Purchase Common').get_rate(arg,self)
-
 @webnotes.whitelist()
 def make_purchase_receipt(source_name, target_doclist=None):
 	from webnotes.model.mapper import get_mapped_doclist
diff --git a/controllers/accounts_controller.py b/controllers/accounts_controller.py
index 927b249..f290d4d 100644
--- a/controllers/accounts_controller.py
+++ b/controllers/accounts_controller.py
@@ -423,3 +423,7 @@
 			self._abbr = webnotes.conn.get_value("Company", self.doc.company, "abbr")
 			
 		return self._abbr
+
+@webnotes.whitelist()
+def get_tax_rate(account_head):
+	return webnotes.conn.get_value("Account", account_head, "tax_rate")
diff --git a/controllers/buying_controller.py b/controllers/buying_controller.py
index 25d76aa..3de550c 100644
--- a/controllers/buying_controller.py
+++ b/controllers/buying_controller.py
@@ -2,7 +2,7 @@
 # License: GNU General Public License v3. See license.txt
 
 from __future__ import unicode_literals
-import webnotes
+import webnotes, json
 from webnotes import _, msgprint
 from webnotes.utils import flt, _round
 
@@ -280,3 +280,6 @@
 					(", ".join((["%s"]*len(item_codes))),), item_codes)]
 
 		return self._purchase_items
+
+	def get_bin_details(self, arg):
+		return {"projected_qty": webnotes.conn.get_value("Bin", json.loads(arg), "projected_qty") or 0 }
diff --git a/public/js/controllers/accounts.js b/public/js/controllers/accounts.js
new file mode 100644
index 0000000..201c47e
--- /dev/null
+++ b/public/js/controllers/accounts.js
@@ -0,0 +1,18 @@
+
+// get tax rate
+cur_frm.cscript.account_head = function(doc, cdt, cdn) {
+	var d = locals[cdt][cdn];
+	if(!d.charge_type && d.account_head){
+		msgprint("Please select Charge Type first");
+		wn.model.set_value(cdt, cdn, "account_head", "");
+	} else if(d.account_head && d.charge_type!=="Actual") {
+		wn.call({
+			type:"GET",
+			method: "controllers.accounts_controller.get_tax_rate", 
+			args: {"account_head":d.account_head},
+			callback: function(r) {
+			  wn.model.set_value(cdt, cdn, "rate", r.message || 0);
+			}
+		})
+	}
+}
diff --git a/selling/doctype/quotation/quotation.py b/selling/doctype/quotation/quotation.py
index b6bc45d..78afb97 100644
--- a/selling/doctype/quotation/quotation.py
+++ b/selling/doctype/quotation/quotation.py
@@ -56,13 +56,7 @@
 	# --------------------------------------------------------------
 	def get_adj_percent(self, arg=''):
 		get_obj('Sales Common').get_adj_percent(self)
-	
 		
-	# Get Tax rate if account type is TAX
-	# -----------------------------------
-	def get_rate(self,arg):
-		return get_obj('Sales Common').get_rate(arg)
-	
 	# Does not allow same item code to be entered twice
 	# -------------------------------------------------
 	def validate_for_items(self):
diff --git a/selling/doctype/sales_common/sales_common.js b/selling/doctype/sales_common/sales_common.js
index c87e823..f744faa 100644
--- a/selling/doctype/sales_common/sales_common.js
+++ b/selling/doctype/sales_common/sales_common.js
@@ -10,6 +10,7 @@
 
 wn.provide("erpnext.selling");
 wn.require("app/js/transaction.js");
+wn.require("app/js/controllers/accounts.js");
 
 erpnext.selling.SellingController = erpnext.TransactionController.extend({
 	onload: function() {
diff --git a/selling/doctype/sales_common/sales_common.py b/selling/doctype/sales_common/sales_common.py
index df7f151..634ea2a 100644
--- a/selling/doctype/sales_common/sales_common.py
+++ b/selling/doctype/sales_common/sales_common.py
@@ -86,26 +86,6 @@
 	
 		if (obj.doc.price_list_currency == default_currency and flt(obj.doc.plc_conversion_rate) != 1.00) or not obj.doc.plc_conversion_rate or (obj.doc.price_list_currency != default_currency and flt(obj.doc.plc_conversion_rate) == 1.00):
 			msgprint("Please Enter Appropriate Conversion Rate for Price List Currency to Base Currency (%s --> %s)" % (obj.doc.price_list_currency, default_currency), raise_exception = 1)
-	
-
-
-	# Get Tax rate if account type is TAX
-	# =========================================================================
-	def get_rate(self, arg):
-		arg = eval(arg)
-		rate = webnotes.conn.sql("select account_type, tax_rate from `tabAccount` where name = '%s' and docstatus != 2" %(arg['account_head']), as_dict=1)
-		ret = {'rate' : 0}
-		if arg['charge_type'] == 'Actual' and rate[0]['account_type'] == 'Tax':
-			msgprint("You cannot select ACCOUNT HEAD of type TAX as your CHARGE TYPE is 'ACTUAL'")
-			ret = {
-				'account_head'	:	''
-			}
-		elif rate[0]['account_type'] in ['Tax', 'Chargeable'] and not arg['charge_type'] == 'Actual':
-			ret = {
-				'rate'	:	rate and flt(rate[0]['tax_rate']) or 0
-			}
-		return ret
-
 
 	def get_item_list(self, obj, is_stopped=0):
 		"""get item list"""
diff --git a/selling/doctype/sales_order/sales_order.py b/selling/doctype/sales_order/sales_order.py
index 0cdca58..1c22c08 100644
--- a/selling/doctype/sales_order/sales_order.py
+++ b/selling/doctype/sales_order/sales_order.py
@@ -38,9 +38,6 @@
 	def get_available_qty(self,args):
 		return get_obj('Sales Common').get_available_qty(eval(args))
 	
-	def get_rate(self,arg):
-		return get_obj('Sales Common').get_rate(arg)
-
 	def validate_mandatory(self):
 		# validate transaction date v/s delivery date
 		if self.doc.delivery_date:
diff --git a/stock/doctype/delivery_note/delivery_note.py b/stock/doctype/delivery_note/delivery_note.py
index b20e790..2819085 100644
--- a/stock/doctype/delivery_note/delivery_note.py
+++ b/stock/doctype/delivery_note/delivery_note.py
@@ -66,9 +66,6 @@
 		"""Re-calculates Basic Rate & amount based on Price List Selected"""
 		get_obj('Sales Common').get_adj_percent(self)
 
-	def get_rate(self,arg):
-		return get_obj('Sales Common').get_rate(arg)
-
 	def so_required(self):
 		"""check in manage account if sales order required or not"""
 		if webnotes.conn.get_value("Selling Settings", None, 'so_required') == 'Yes':
diff --git a/stock/doctype/material_request/material_request.py b/stock/doctype/material_request/material_request.py
index d1672ba..7aea336 100644
--- a/stock/doctype/material_request/material_request.py
+++ b/stock/doctype/material_request/material_request.py
@@ -20,10 +20,6 @@
 		self.tname = 'Material Request Item'
 		self.fname = 'indent_details'
 
-	# get available qty at warehouse
-	def get_bin_details(self, arg = ''):
-		return get_obj(dt='Purchase Common').get_bin_details(arg)
-
 	def check_if_already_pulled(self):
 		pass#if self.[d.sales_order_no for d in getlist(self.doclist, 'indent_details')]
 
diff --git a/stock/doctype/purchase_receipt/purchase_receipt.py b/stock/doctype/purchase_receipt/purchase_receipt.py
index 6169b1d..1e1f1eaf 100644
--- a/stock/doctype/purchase_receipt/purchase_receipt.py
+++ b/stock/doctype/purchase_receipt/purchase_receipt.py
@@ -38,10 +38,6 @@
 			total_qty = sum((item.qty for item in self.doclist.get({"parentfield": "purchase_receipt_details"})))
 			self.doc.fields["__billing_complete"] = billed_qty[0][0] == total_qty
 
-	# get available qty at warehouse
-	def get_bin_details(self, arg = ''):
-		return get_obj(dt='Purchase Common').get_bin_details(arg)
-
 	def validate(self):
 		super(DocType, self).validate()
 		
@@ -290,10 +286,6 @@
 				bin = webnotes.conn.sql("select actual_qty from `tabBin` where item_code = %s and warehouse = %s", (d.rm_item_code, self.doc.supplier_warehouse), as_dict = 1)
 				d.current_stock = bin and flt(bin[0]['actual_qty']) or 0
 
-
-	def get_rate(self,arg):
-		return get_obj('Purchase Common').get_rate(arg,self)
-		
 	def get_gl_entries_for_stock(self, warehouse_account=None):
 		against_stock_account = self.get_company_default("stock_received_but_not_billed")