diff --git a/erpnext/accounts/doctype/payment_entry/payment_entry.js b/erpnext/accounts/doctype/payment_entry/payment_entry.js
index 0701435dfc7..b844f7419b6 100644
--- a/erpnext/accounts/doctype/payment_entry/payment_entry.js
+++ b/erpnext/accounts/doctype/payment_entry/payment_entry.js
@@ -1,10 +1,12 @@
 // Copyright (c) 2016, Frappe Technologies Pvt. Ltd. and contributors
 // For license information, please see license.txt
-{% include "erpnext/public/js/controllers/accounts.js" %}
 frappe.provide("erpnext.accounts.dimensions");
 
 cur_frm.cscript.tax_table = "Advance Taxes and Charges";
 
+erpnext.accounts.taxes.setup_tax_validations("Payment Entry");
+erpnext.accounts.taxes.setup_tax_filters("Advance Taxes and Charges");
+
 frappe.ui.form.on('Payment Entry', {
 	onload: function(frm) {
 		frm.ignore_doctypes_on_cancel_all = ['Sales Invoice', 'Purchase Invoice', "Repost Payment Ledger"];
@@ -106,12 +108,11 @@ frappe.ui.form.on('Payment Entry', {
 		});
 
 		frm.set_query("reference_doctype", "references", function() {
+			let doctypes = ["Journal Entry"];
 			if (frm.doc.party_type == "Customer") {
-				var doctypes = ["Sales Order", "Sales Invoice", "Journal Entry", "Dunning"];
+				doctypes = ["Sales Order", "Sales Invoice", "Journal Entry", "Dunning"];
 			} else if (frm.doc.party_type == "Supplier") {
-				var doctypes = ["Purchase Order", "Purchase Invoice", "Journal Entry"];
-			} else {
-				var doctypes = ["Journal Entry"];
+				doctypes = ["Purchase Order", "Purchase Invoice", "Journal Entry"];
 			}
 
 			return {
@@ -165,6 +166,7 @@ frappe.ui.form.on('Payment Entry', {
 	},
 
 	company: function(frm) {
+		frm.trigger('party');
 		frm.events.hide_unhide_fields(frm);
 		frm.events.set_dynamic_labels(frm);
 		erpnext.accounts.dimensions.update_dimension(frm, frm.doctype);
@@ -287,6 +289,13 @@ frappe.ui.form.on('Payment Entry', {
 		}
 	},
 
+	mode_of_payment: function(frm) {
+		erpnext.accounts.pos.get_payment_mode_account(frm, frm.doc.mode_of_payment, function(account){
+			let payment_account_field = frm.doc.payment_type == "Receive" ? "paid_to" : "paid_from";
+			frm.set_value(payment_account_field, account);
+		})
+	},
+
 	party_type: function(frm) {
 
 		let party_types = Object.keys(frappe.boot.party_account_types);
@@ -319,10 +328,6 @@ frappe.ui.form.on('Payment Entry', {
 		}
 	},
 
-	company: function(frm){
-		frm.trigger('party');
-	},
-
 	party: function(frm) {
 		if (frm.doc.contact_email || frm.doc.contact_person) {
 			frm.set_value("contact_email", "");
@@ -1106,7 +1111,7 @@ frappe.ui.form.on('Payment Entry', {
 							if (tax.charge_type === 'On Net Total') {
 								tax.charge_type = 'On Paid Amount';
 							}
-							me.frm.add_child("taxes", tax);
+							frm.add_child("taxes", tax);
 						}
 						frm.events.apply_taxes(frm);
 						frm.events.set_unallocated_amount(frm);
@@ -1222,7 +1227,7 @@ frappe.ui.form.on('Payment Entry', {
 				tax.grand_total_fraction_for_current_item = 1 + tax.tax_fraction_for_current_item;
 			} else {
 				tax.grand_total_fraction_for_current_item =
-					me.frm.doc["taxes"][i-1].grand_total_fraction_for_current_item +
+					frm.doc["taxes"][i-1].grand_total_fraction_for_current_item +
 					tax.tax_fraction_for_current_item;
 			}
 
@@ -1269,7 +1274,7 @@ frappe.ui.form.on('Payment Entry', {
 			}
 		});
 
-		$.each(me.frm.doc["taxes"] || [], function(i, tax) {
+		$.each(frm.doc["taxes"] || [], function(i, tax) {
 			let current_tax_amount = frm.events.get_current_tax_amount(frm, tax);
 
 			// Adjust divisional loss to the last item
diff --git a/erpnext/accounts/doctype/pos_invoice/pos_invoice.js b/erpnext/accounts/doctype/pos_invoice/pos_invoice.js
index 32e267f33c8..30c841e02bc 100644
--- a/erpnext/accounts/doctype/pos_invoice/pos_invoice.js
+++ b/erpnext/accounts/doctype/pos_invoice/pos_invoice.js
@@ -4,6 +4,7 @@
 {% include 'erpnext/selling/sales_common.js' %};
 frappe.provide("erpnext.accounts");
 
+erpnext.accounts.pos.setup("POS Invoice");
 erpnext.selling.POSInvoiceController = class POSInvoiceController extends erpnext.selling.SellingController {
 	settings = {};
 
diff --git a/erpnext/accounts/doctype/pos_profile/pos_profile.js b/erpnext/accounts/doctype/pos_profile/pos_profile.js
index 813d20dbf93..0a89aee8e9c 100755
--- a/erpnext/accounts/doctype/pos_profile/pos_profile.js
+++ b/erpnext/accounts/doctype/pos_profile/pos_profile.js
@@ -1,8 +1,6 @@
 // Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors
 // License: GNU General Public License v3. See license.txt
 
-{% include "erpnext/public/js/controllers/accounts.js" %}
-
 frappe.ui.form.on('POS Profile', {
 	setup: function(frm) {
 		frm.set_query("selling_price_list", function() {
@@ -148,4 +146,4 @@ frappe.ui.form.on('POS Profile', {
 		frm.toggle_display('expense_account',
 			erpnext.is_perpetual_inventory_enabled(frm.doc.company));
 	}
-});
+});
\ No newline at end of file
diff --git a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js
index 6a558ca606b..0f581e20da6 100644
--- a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js
+++ b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.js
@@ -4,6 +4,10 @@
 frappe.provide("erpnext.accounts");
 {% include 'erpnext/public/js/controllers/buying.js' %};
 
+erpnext.accounts.payment_triggers.setup("Purchase Invoice");
+erpnext.accounts.taxes.setup_tax_filters("Purchase Taxes and Charges");
+erpnext.accounts.taxes.setup_tax_validations("Purchase Invoice");
+
 erpnext.accounts.PurchaseInvoice = class PurchaseInvoice extends erpnext.buying.BuyingController {
 	setup(doc) {
 		this.setup_posting_date_time_check();
@@ -506,7 +510,8 @@ frappe.ui.form.on("Purchase Invoice", {
 	setup: function(frm) {
 		frm.custom_make_buttons = {
 			'Purchase Invoice': 'Return / Debit Note',
-			'Payment Entry': 'Payment'
+			'Payment Entry': 'Payment',
+			'Landed Cost Voucher': function () { frm.trigger('create_landed_cost_voucher') },
 		}
 
 		frm.set_query("additional_discount_account", function() {
@@ -544,6 +549,26 @@ frappe.ui.form.on("Purchase Invoice", {
 		frm.events.add_custom_buttons(frm);
 	},
 
+	mode_of_payment: function(frm) {
+		get_payment_mode_account(frm, frm.doc.mode_of_payment, function(account){
+			frm.set_value('cash_bank_account', account);
+		})
+	},
+
+	create_landed_cost_voucher: function (frm) {
+		let lcv = frappe.model.get_new_doc('Landed Cost Voucher');
+		lcv.company = frm.doc.company;
+
+		let lcv_receipt = frappe.model.get_new_doc('Landed Cost Purchase Invoice');
+		lcv_receipt.receipt_document_type = 'Purchase Invoice';
+		lcv_receipt.receipt_document = frm.doc.name;
+		lcv_receipt.supplier = frm.doc.supplier;
+		lcv_receipt.grand_total = frm.doc.grand_total;
+		lcv.purchase_receipts = [lcv_receipt];
+
+		frappe.set_route("Form", lcv.doctype, lcv.name);
+	},
+
 	add_custom_buttons: function(frm) {
 		if (frm.doc.docstatus == 1 && frm.doc.per_received < 100) {
 			frm.add_custom_button(__('Purchase Receipt'), () => {
diff --git a/erpnext/accounts/doctype/purchase_taxes_and_charges_template/purchase_taxes_and_charges_template.js b/erpnext/accounts/doctype/purchase_taxes_and_charges_template/purchase_taxes_and_charges_template.js
index eb0ea7fef81..78dc4bee1a6 100644
--- a/erpnext/accounts/doctype/purchase_taxes_and_charges_template/purchase_taxes_and_charges_template.js
+++ b/erpnext/accounts/doctype/purchase_taxes_and_charges_template/purchase_taxes_and_charges_template.js
@@ -1,30 +1,31 @@
 // Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors
 // License: GNU General Public License v3. See license.txt
 
-cur_frm.cscript.tax_table = "Purchase Taxes and Charges";
+erpnext.accounts.taxes.setup_tax_validations("Purchase Taxes and Charges Template");
+erpnext.accounts.taxes.setup_tax_filters("Purchase Taxes and Charges");
 
-{% include "erpnext/public/js/controllers/accounts.js" %}
+frappe.ui.form.on("Purchase Taxes and Charges", {
+	add_deduct_tax(doc, cdt, cdn) {
+		let d = locals[cdt][cdn];
 
-frappe.ui.form.on("Purchase Taxes and Charges", "add_deduct_tax", function(doc, cdt, cdn) {
-	var d = locals[cdt][cdn];
+		if(!d.category && d.add_deduct_tax) {
+			frappe.msgprint(__("Please select Category first"));
+			d.add_deduct_tax = '';
+		}
+		else if(d.category != 'Total' && d.add_deduct_tax == 'Deduct') {
+			frappe.msgprint(__("Cannot deduct when category is for 'Valuation' or 'Valuation and Total'"));
+			d.add_deduct_tax = '';
+		}
+		refresh_field('add_deduct_tax', d.name, 'taxes');
+	},
 
-	if(!d.category && d.add_deduct_tax) {
-		frappe.msgprint(__("Please select Category first"));
-		d.add_deduct_tax = '';
+	category(doc, cdt, cdn) {
+		let d = locals[cdt][cdn];
+
+		if(d.category != 'Total' && d.add_deduct_tax == 'Deduct') {
+			frappe.msgprint(__("Cannot deduct when category is for 'Valuation' or 'Valuation and Total'"));
+			d.add_deduct_tax = '';
+		}
+		refresh_field('add_deduct_tax', d.name, 'taxes');
 	}
-	else if(d.category != 'Total' && d.add_deduct_tax == 'Deduct') {
-		frappe.msgprint(__("Cannot deduct when category is for 'Valuation' or 'Valuation and Total'"));
-		d.add_deduct_tax = '';
-	}
-	refresh_field('add_deduct_tax', d.name, 'taxes');
-});
-
-frappe.ui.form.on("Purchase Taxes and Charges", "category", function(doc, cdt, cdn) {
-	var d = locals[cdt][cdn];
-
-	if (d.category != 'Total' && d.add_deduct_tax == 'Deduct') {
-		frappe.msgprint(__("Cannot deduct when category is for 'Valuation' or 'Vaulation and Total'"));
-		d.add_deduct_tax = '';
-	}
-	refresh_field('add_deduct_tax', d.name, 'taxes');
 });
diff --git a/erpnext/accounts/doctype/sales_invoice/sales_invoice.js b/erpnext/accounts/doctype/sales_invoice/sales_invoice.js
index 8753ebc3baf..389c1644b2a 100644
--- a/erpnext/accounts/doctype/sales_invoice/sales_invoice.js
+++ b/erpnext/accounts/doctype/sales_invoice/sales_invoice.js
@@ -4,6 +4,10 @@
 {% include 'erpnext/selling/sales_common.js' %};
 frappe.provide("erpnext.accounts");
 
+erpnext.accounts.taxes.setup_tax_validations("Sales Invoice");
+erpnext.accounts.payment_triggers.setup("Sales Invoice");
+erpnext.accounts.pos.setup("Sales Invoice");
+erpnext.accounts.taxes.setup_tax_filters("Sales Taxes and Charges");
 
 erpnext.accounts.SalesInvoiceController = class SalesInvoiceController extends erpnext.selling.SellingController {
 	setup(doc) {
diff --git a/erpnext/accounts/doctype/sales_taxes_and_charges_template/sales_taxes_and_charges_template.js b/erpnext/accounts/doctype/sales_taxes_and_charges_template/sales_taxes_and_charges_template.js
index 066c4eae436..00e8b621c0d 100644
--- a/erpnext/accounts/doctype/sales_taxes_and_charges_template/sales_taxes_and_charges_template.js
+++ b/erpnext/accounts/doctype/sales_taxes_and_charges_template/sales_taxes_and_charges_template.js
@@ -1,6 +1,5 @@
 // Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors
 // License: GNU General Public License v3. See license.txt
 
-cur_frm.cscript.tax_table = "Sales Taxes and Charges";
-
-{% include "erpnext/public/js/controllers/accounts.js" %}
+erpnext.accounts.taxes.setup_tax_validations("Sales Taxes and Charges Template");
+erpnext.accounts.taxes.setup_tax_filters("Sales Taxes and Charges");
\ No newline at end of file
diff --git a/erpnext/buying/doctype/purchase_order/purchase_order.js b/erpnext/buying/doctype/purchase_order/purchase_order.js
index 8fa8f305549..97b7cf874c5 100644
--- a/erpnext/buying/doctype/purchase_order/purchase_order.js
+++ b/erpnext/buying/doctype/purchase_order/purchase_order.js
@@ -5,6 +5,10 @@ frappe.provide("erpnext.buying");
 frappe.provide("erpnext.accounts.dimensions");
 {% include 'erpnext/public/js/controllers/buying.js' %};
 
+erpnext.accounts.taxes.setup_tax_filters("Purchase Taxes and Charges");
+erpnext.accounts.taxes.setup_tax_validations("Purchase Order");
+
+
 frappe.ui.form.on("Purchase Order", {
 	setup: function(frm) {
 
diff --git a/erpnext/public/js/controllers/accounts.js b/erpnext/public/js/controllers/accounts.js
index 47b88a002bc..d03a07cf035 100644
--- a/erpnext/public/js/controllers/accounts.js
+++ b/erpnext/public/js/controllers/accounts.js
@@ -3,319 +3,267 @@
 
 // get tax rate
 frappe.provide("erpnext.taxes");
-frappe.provide("erpnext.taxes.flags");
 
-frappe.ui.form.on(cur_frm.doctype, {
-	setup: function(frm) {
-		// set conditional display for rate column in taxes
-		$(frm.wrapper).on('grid-row-render', function(e, grid_row) {
-			if(in_list(['Sales Taxes and Charges', 'Purchase Taxes and Charges'], grid_row.doc.doctype)) {
-				erpnext.taxes.set_conditional_mandatory_rate_or_amount(grid_row);
+erpnext.accounts.taxes = {
+	setup_tax_validations: function(doctype) {
+		let me = this;
+		frappe.ui.form.on(doctype, {
+			setup: function(frm) {
+				// set conditional display for rate column in taxes
+				$(frm.wrapper).on('grid-row-render', function(e, grid_row) {
+					if(in_list(['Sales Taxes and Charges', 'Purchase Taxes and Charges'], grid_row.doc.doctype)) {
+						me.set_conditional_mandatory_rate_or_amount(grid_row);
+					}
+				});
+			},
+			onload: function(frm) {
+				if(frm.get_field("taxes")) {
+					frm.set_query("account_head", "taxes", function(doc) {
+						if(frm.cscript.tax_table == "Sales Taxes and Charges") {
+							var account_type = ["Tax", "Chargeable", "Expense Account"];
+						} else {
+							var account_type = ["Tax", "Chargeable", "Income Account", "Expenses Included In Valuation"];
+						}
+
+						return {
+							query: "erpnext.controllers.queries.tax_account_query",
+							filters: {
+								"account_type": account_type,
+								"company": doc.company,
+								"disabled": 0
+							}
+						}
+					});
+					frm.set_query("cost_center", "taxes", function(doc) {
+						return {
+							filters: {
+								"company": doc.company,
+								"is_group": 0
+							}
+						};
+					});
+				}
+			},
+			validate: function(frm) {
+				// neither is absolutely mandatory
+				if(frm.get_docfield("taxes")) {
+					frm.get_docfield("taxes", "rate").reqd = 0;
+					frm.get_docfield("taxes", "tax_amount").reqd = 0;
+				}
+
+			},
+			taxes_on_form_rendered: function(frm) {
+				me.set_conditional_mandatory_rate_or_amount(frm.open_grid_row());
+			},
+		});
+	},
+
+	set_conditional_mandatory_rate_or_amount: function(grid_row) {
+		if(grid_row) {
+			if(grid_row.doc.charge_type==="Actual") {
+				grid_row.toggle_editable("tax_amount", true);
+				grid_row.toggle_reqd("tax_amount", true);
+				grid_row.toggle_editable("rate", false);
+				grid_row.toggle_reqd("rate", false);
+			} else {
+				grid_row.toggle_editable("rate", true);
+				grid_row.toggle_reqd("rate", true);
+				grid_row.toggle_editable("tax_amount", false);
+				grid_row.toggle_reqd("tax_amount", false);
+			}
+		}
+	},
+
+	validate_taxes_and_charges: function(cdt, cdn) {
+		let d = locals[cdt][cdn];
+		let msg = "";
+
+		if (d.account_head && !d.description) {
+			// set description from account head
+			d.description = d.account_head.split(' - ').slice(0, -1).join(' - ');
+		}
+
+		if (!d.charge_type && (d.row_id || d.rate || d.tax_amount)) {
+			msg = __("Please select Charge Type first");
+			d.row_id = "";
+			d.rate = d.tax_amount = 0.0;
+		} else if ((d.charge_type == 'Actual' || d.charge_type == 'On Net Total' || d.charge_type == 'On Paid Amount') && d.row_id) {
+			msg = __("Can refer row only if the charge type is 'On Previous Row Amount' or 'Previous Row Total'");
+			d.row_id = "";
+		} else if ((d.charge_type == 'On Previous Row Amount' || d.charge_type == 'On Previous Row Total') && d.row_id) {
+			if (d.idx == 1) {
+				msg = __("Cannot select charge type as 'On Previous Row Amount' or 'On Previous Row Total' for first row");
+				d.charge_type = '';
+			} else if (!d.row_id) {
+				msg = __("Please specify a valid Row ID for row {0} in table {1}", [d.idx, __(d.doctype)]);
+				d.row_id = "";
+			} else if (d.row_id && d.row_id >= d.idx) {
+				msg = __("Cannot refer row number greater than or equal to current row number for this Charge type");
+				d.row_id = "";
+			}
+		}
+		if (msg) {
+			frappe.validated = false;
+			refresh_field("taxes");
+			frappe.throw(msg);
+		}
+
+	},
+
+	setup_tax_filters: function(doctype) {
+		let me = this;
+		frappe.ui.form.on(doctype, {
+			account_head: function(frm, cdt, cdn) {
+				let d = locals[cdt][cdn];
+
+				if (doc.docstatus == 1) {
+					// Should not trigger any changes on change post submit
+					return;
+				}
+
+				if(!d.charge_type && d.account_head){
+					frappe.msgprint(__("Please select Charge Type first"));
+					frappe.model.set_value(cdt, cdn, "account_head", "");
+				} else if (d.account_head) {
+					frappe.call({
+						type:"GET",
+						method: "erpnext.controllers.accounts_controller.get_tax_rate",
+						args: {"account_head":d.account_head},
+						callback: function(r) {
+							if (d.charge_type!=="Actual") {
+								frappe.model.set_value(cdt, cdn, "rate", r.message.tax_rate || 0);
+							}
+							frappe.model.set_value(cdt, cdn, "description", r.message.account_name);
+						}
+					})
+				}
+			},
+			row_id: function(frm, cdt, cdn) {
+				me.validate_taxes_and_charges(cdt, cdn);
+			},
+			rate: function(frm, cdt, cdn) {
+				me.validate_taxes_and_charges(cdt, cdn);
+			},
+			tax_amount: function(frm, cdt, cdn) {
+				me.validate_taxes_and_charges(cdt, cdn);
+			},
+			charge_type: function(frm, cdt, cdn) {
+				me.validate_taxes_and_charges(cdt, cdn);
+				let open_form = frm.open_grid_row();
+				if(open_form) {
+					me.set_conditional_mandatory_rate_or_amount(open_form);
+				} else {
+					// apply in current row
+					me.set_conditional_mandatory_rate_or_amount(frm.get_field('taxes').grid.get_row(cdn));
+				}
+			},
+			included_in_print_rate: function(frm, cdt, cdn) {
+				let tax = frappe.get_doc(cdt, cdn);
+				try {
+					me.validate_taxes_and_charges(cdt, cdn);
+					me.validate_inclusive_tax(tax);
+				} catch(e) {
+					tax.included_in_print_rate = 0;
+					refresh_field("included_in_print_rate", tax.name, tax.parentfield);
+					throw e;
+				}
 			}
 		});
 	},
-	onload: function(frm) {
-		if(frm.get_field("taxes")) {
-			frm.set_query("account_head", "taxes", function(doc) {
-				if(frm.cscript.tax_table == "Sales Taxes and Charges") {
-					var account_type = ["Tax", "Chargeable", "Expense Account"];
-				} else {
-					var account_type = ["Tax", "Chargeable", "Income Account", "Expenses Included In Valuation"];
+
+	validate_inclusive_tax: function(tax) {
+		let actual_type_error = function() {
+			var msg = __("Actual type tax cannot be included in Item rate in row {0}", [tax.idx])
+			frappe.throw(msg);
+		};
+
+		let on_previous_row_error = function(row_range) {
+			var msg = __("For row {0} in {1}. To include {2} in Item rate, rows {3} must also be included",
+				[tax.idx, __(tax.doctype), tax.charge_type, row_range])
+			frappe.throw(msg);
+		};
+
+		if(cint(tax.included_in_print_rate)) {
+			if(tax.charge_type == "Actual") {
+				// inclusive tax cannot be of type Actual
+				actual_type_error();
+			} else if(tax.charge_type == "On Previous Row Amount" &&
+				!cint(this.frm.doc["taxes"][tax.row_id - 1].included_in_print_rate)
+			) {
+				// referred row should also be an inclusive tax
+				on_previous_row_error(tax.row_id);
+			} else if(tax.charge_type == "On Previous Row Total") {
+				var taxes_not_included = $.map(this.frm.doc["taxes"].slice(0, tax.row_id),
+					function(t) { return cint(t.included_in_print_rate) ? null : t; });
+				if(taxes_not_included.length > 0) {
+					// all rows above this tax should be inclusive
+					on_previous_row_error(tax.row_id == 1 ? "1" : "1 - " + tax.row_id);
 				}
-
-				return {
-					query: "erpnext.controllers.queries.tax_account_query",
-					filters: {
-						"account_type": account_type,
-						"company": doc.company,
-						"disabled": 0
-					}
-				}
-			});
-			frm.set_query("cost_center", "taxes", function(doc) {
-				return {
-					filters: {
-						"company": doc.company,
-						"is_group": 0
-					}
-				};
-			});
-		}
-	},
-	validate: function(frm) {
-		// neither is absolutely mandatory
-		if(frm.get_docfield("taxes")) {
-			frm.get_docfield("taxes", "rate").reqd = 0;
-			frm.get_docfield("taxes", "tax_amount").reqd = 0;
-		}
-
-	},
-	taxes_on_form_rendered: function(frm) {
-		erpnext.taxes.set_conditional_mandatory_rate_or_amount(frm.open_grid_row());
-	},
-
-	allocate_advances_automatically: function(frm) {
-		frm.trigger('fetch_advances');
-	},
-
-	only_include_allocated_payments: function(frm) {
-		frm.trigger('fetch_advances');
-	},
-
-	fetch_advances: function(frm) {
-		if(frm.doc.allocate_advances_automatically) {
-			frappe.call({
-				doc: frm.doc,
-				method: "set_advances",
-				callback: function(r, rt) {
-					refresh_field("advances");
-				}
-			})
-		}
-	}
-});
-
-frappe.ui.form.on('Sales Invoice Payment', {
-	mode_of_payment: function(frm, cdt, cdn) {
-		var d = locals[cdt][cdn];
-		get_payment_mode_account(frm, d.mode_of_payment, function(account){
-			frappe.model.set_value(cdt, cdn, 'account', account)
-		})
-	}
-});
-
-frappe.ui.form.on("Sales Invoice", {
-	payment_terms_template: function() {
-		cur_frm.trigger("disable_due_date");
-	}
-});
-
-frappe.ui.form.on('Purchase Invoice', {
-	setup: (frm) => {
-		frm.make_methods = {
-			'Landed Cost Voucher': function () { frm.trigger('create_landedcost_voucher') },
-		}
-	},
-
-	mode_of_payment: function(frm) {
-		get_payment_mode_account(frm, frm.doc.mode_of_payment, function(account){
-			frm.set_value('cash_bank_account', account);
-		})
-	},
-
-	payment_terms_template: function() {
-		cur_frm.trigger("disable_due_date");
-	},
-
-	create_landedcost_voucher: function (frm) {
-		let lcv = frappe.model.get_new_doc('Landed Cost Voucher');
-		lcv.company = frm.doc.company;
-
-		let lcv_receipt = frappe.model.get_new_doc('Landed Cost Purchase Invoice');
-		lcv_receipt.receipt_document_type = 'Purchase Invoice';
-		lcv_receipt.receipt_document = frm.doc.name;
-		lcv_receipt.supplier = frm.doc.supplier;
-		lcv_receipt.grand_total = frm.doc.grand_total;
-		lcv.purchase_receipts = [lcv_receipt];
-
-		frappe.set_route("Form", lcv.doctype, lcv.name);
-	}
-});
-
-frappe.ui.form.on("Payment Schedule", {
-	payment_schedule_remove: function() {
-		cur_frm.trigger("disable_due_date");
-	},
-
-});
-
-frappe.ui.form.on('Payment Entry', {
-	mode_of_payment: function(frm) {
-		get_payment_mode_account(frm, frm.doc.mode_of_payment, function(account){
-			var payment_account_field = frm.doc.payment_type == "Receive" ? "paid_to" : "paid_from";
-			frm.set_value(payment_account_field, account);
-		})
-	}
-})
-
-frappe.ui.form.on('Salary Structure', {
-	mode_of_payment: function(frm) {
-		get_payment_mode_account(frm, frm.doc.mode_of_payment, function(account){
-			frm.set_value("payment_account", account);
-		})
-	}
-})
-
-var get_payment_mode_account = function(frm, mode_of_payment, callback) {
-	if(!frm.doc.company) {
-		frappe.throw({message:__("Please select a Company first."), title: __("Mandatory")});
-	}
-
-	if(!mode_of_payment) {
-		return;
-	}
-
-	return  frappe.call({
-		method: "erpnext.accounts.doctype.sales_invoice.sales_invoice.get_bank_cash_account",
-		args: {
-			"mode_of_payment": mode_of_payment,
-			"company": frm.doc.company
-		},
-		callback: function(r, rt) {
-			if(r.message) {
-				callback(r.message.account)
+			} else if(tax.category == "Valuation") {
+				frappe.throw(__("Valuation type charges can not marked as Inclusive"));
 			}
 		}
-	});
+	}
 }
 
-cur_frm.cscript.account_head = function(doc, cdt, cdn) {
-	var d = locals[cdt][cdn];
+erpnext.accounts.payment_triggers = {
+	setup: function(doctype) {
+		frappe.form.ui.on(doctype, {
+			allocate_advances_automatically(frm) {
+				frm.trigger('fetch_advances');
+			},
 
-	if (doc.docstatus == 1) {
-		// Should not trigger any changes on change post submit
-		return;
-	}
+			only_include_allocated_payments(frm) {
+				frm.trigger('fetch_advances');
+			},
 
-	if(!d.charge_type && d.account_head){
-		frappe.msgprint(__("Please select Charge Type first"));
-		frappe.model.set_value(cdt, cdn, "account_head", "");
-	} else if (d.account_head) {
-		frappe.call({
-			type:"GET",
-			method: "erpnext.controllers.accounts_controller.get_tax_rate",
-			args: {"account_head":d.account_head},
-			callback: function(r) {
-				if (d.charge_type!=="Actual") {
-					frappe.model.set_value(cdt, cdn, "rate", r.message.tax_rate || 0);
+			fetch_advances(frm) {
+				if(frm.doc.allocate_advances_automatically) {
+					frappe.call({
+						doc: frm.doc,
+						method: "set_advances",
+						callback: function(r, rt) {
+							refresh_field("advances");
+						}
+					})
 				}
-				frappe.model.set_value(cdt, cdn, "description", r.message.account_name);
 			}
-		})
-	}
+		});
+	},
 }
 
-cur_frm.cscript.validate_taxes_and_charges = function(cdt, cdn) {
-	var d = locals[cdt][cdn];
-	var msg = "";
-
-	if (d.account_head && !d.description) {
-		// set description from account head
-		d.description = d.account_head.split(' - ').slice(0, -1).join(' - ');
-	}
-
-	if (!d.charge_type && (d.row_id || d.rate || d.tax_amount)) {
-		msg = __("Please select Charge Type first");
-		d.row_id = "";
-		d.rate = d.tax_amount = 0.0;
-	} else if ((d.charge_type == 'Actual' || d.charge_type == 'On Net Total' || d.charge_type == 'On Paid Amount') && d.row_id) {
-		msg = __("Can refer row only if the charge type is 'On Previous Row Amount' or 'Previous Row Total'");
-		d.row_id = "";
-	} else if ((d.charge_type == 'On Previous Row Amount' || d.charge_type == 'On Previous Row Total') && d.row_id) {
-		if (d.idx == 1) {
-			msg = __("Cannot select charge type as 'On Previous Row Amount' or 'On Previous Row Total' for first row");
-			d.charge_type = '';
-		} else if (!d.row_id) {
-			msg = __("Please specify a valid Row ID for row {0} in table {1}", [d.idx, __(d.doctype)]);
-			d.row_id = "";
-		} else if (d.row_id && d.row_id >= d.idx) {
-			msg = __("Cannot refer row number greater than or equal to current row number for this Charge type");
-			d.row_id = "";
-		}
-	}
-	if (msg) {
-		frappe.validated = false;
-		refresh_field("taxes");
-		frappe.throw(msg);
-	}
-
-}
-
-cur_frm.cscript.validate_inclusive_tax = function(tax) {
-	var actual_type_error = function() {
-		var msg = __("Actual type tax cannot be included in Item rate in row {0}", [tax.idx])
-		frappe.throw(msg);
-	};
-
-	var on_previous_row_error = function(row_range) {
-		var msg = __("For row {0} in {1}. To include {2} in Item rate, rows {3} must also be included",
-			[tax.idx, __(tax.doctype), tax.charge_type, row_range])
-		frappe.throw(msg);
-	};
-
-	if(cint(tax.included_in_print_rate)) {
-		if(tax.charge_type == "Actual") {
-			// inclusive tax cannot be of type Actual
-			actual_type_error();
-		} else if(tax.charge_type == "On Previous Row Amount" &&
-			!cint(this.frm.doc["taxes"][tax.row_id - 1].included_in_print_rate)
-		) {
-			// referred row should also be an inclusive tax
-			on_previous_row_error(tax.row_id);
-		} else if(tax.charge_type == "On Previous Row Total") {
-			var taxes_not_included = $.map(this.frm.doc["taxes"].slice(0, tax.row_id),
-				function(t) { return cint(t.included_in_print_rate) ? null : t; });
-			if(taxes_not_included.length > 0) {
-				// all rows above this tax should be inclusive
-				on_previous_row_error(tax.row_id == 1 ? "1" : "1 - " + tax.row_id);
+erpnext.accounts.pos = {
+	setup: function(doctype) {
+		frappe.ui.form.on(doctype, {
+			mode_of_payment: function(frm, cdt, cdn) {
+				var d = locals[cdt][cdn];
+				get_payment_mode_account(frm, d.mode_of_payment, function(account){
+					frappe.model.set_value(cdt, cdn, 'account', account)
+				})
 			}
-		} else if(tax.category == "Valuation") {
-			frappe.throw(__("Valuation type charges can not marked as Inclusive"));
-		}
-	}
-}
-
-if(!erpnext.taxes.flags[cur_frm.cscript.tax_table]) {
-	erpnext.taxes.flags[cur_frm.cscript.tax_table] = true;
-
-	frappe.ui.form.on(cur_frm.cscript.tax_table, "row_id", function(frm, cdt, cdn) {
-		cur_frm.cscript.validate_taxes_and_charges(cdt, cdn);
-	});
-
-	frappe.ui.form.on(cur_frm.cscript.tax_table, "rate", function(frm, cdt, cdn) {
-		cur_frm.cscript.validate_taxes_and_charges(cdt, cdn);
-	});
-
-	frappe.ui.form.on(cur_frm.cscript.tax_table, "tax_amount", function(frm, cdt, cdn) {
-		cur_frm.cscript.validate_taxes_and_charges(cdt, cdn);
-	});
-
-	frappe.ui.form.on(cur_frm.cscript.tax_table, "charge_type", function(frm, cdt, cdn) {
-		frm.cscript.validate_taxes_and_charges(cdt, cdn);
-		var open_form = frm.open_grid_row();
-		if(open_form) {
-			erpnext.taxes.set_conditional_mandatory_rate_or_amount(open_form);
-		} else {
-			// apply in current row
-			erpnext.taxes.set_conditional_mandatory_rate_or_amount(frm.get_field('taxes').grid.get_row(cdn));
-		}
-	});
-
-	frappe.ui.form.on(cur_frm.cscript.tax_table, "included_in_print_rate", function(frm, cdt, cdn) {
-		var tax = frappe.get_doc(cdt, cdn);
-		try {
-			cur_frm.cscript.validate_taxes_and_charges(cdt, cdn);
-			cur_frm.cscript.validate_inclusive_tax(tax);
-		} catch(e) {
-			tax.included_in_print_rate = 0;
-			refresh_field("included_in_print_rate", tax.name, tax.parentfield);
-			throw e;
-		}
-	});
-}
-
-erpnext.taxes.set_conditional_mandatory_rate_or_amount = function(grid_row) {
-	if(grid_row) {
-		if(grid_row.doc.charge_type==="Actual") {
-			grid_row.toggle_editable("tax_amount", true);
-			grid_row.toggle_reqd("tax_amount", true);
-			grid_row.toggle_editable("rate", false);
-			grid_row.toggle_reqd("rate", false);
-		} else {
-			grid_row.toggle_editable("rate", true);
-			grid_row.toggle_reqd("rate", true);
-			grid_row.toggle_editable("tax_amount", false);
-			grid_row.toggle_reqd("tax_amount", false);
+		});
+	},
+
+	get_payment_mode_account: function(frm, mode_of_payment, callback) {
+		if(!frm.doc.company) {
+			frappe.throw({message:__("Please select a Company first."), title: __("Mandatory")});
 		}
+
+		if(!mode_of_payment) {
+			return;
+		}
+
+		return  frappe.call({
+			method: "erpnext.accounts.doctype.sales_invoice.sales_invoice.get_bank_cash_account",
+			args: {
+				"mode_of_payment": mode_of_payment,
+				"company": frm.doc.company
+			},
+			callback: function(r, rt) {
+				if(r.message) {
+					callback(r.message.account)
+				}
+			}
+		});
 	}
 }
diff --git a/erpnext/public/js/erpnext.bundle.js b/erpnext/public/js/erpnext.bundle.js
index 85a2e242dbf..0f4a65017ca 100644
--- a/erpnext/public/js/erpnext.bundle.js
+++ b/erpnext/public/js/erpnext.bundle.js
@@ -24,5 +24,6 @@ import "./bulk_transaction_processing";
 import "./utils/crm_activities";
 import "./templates/crm_activities.html";
 import "./templates/crm_notes.html";
+import "./controllers/accounts.js"
 
 // import { sum } from 'frappe/public/utils/util.js'
diff --git a/erpnext/selling/doctype/sales_order/sales_order.js b/erpnext/selling/doctype/sales_order/sales_order.js
index 5d43a07d96c..2707ded5e3a 100644
--- a/erpnext/selling/doctype/sales_order/sales_order.js
+++ b/erpnext/selling/doctype/sales_order/sales_order.js
@@ -3,6 +3,9 @@
 
 {% include 'erpnext/selling/sales_common.js' %}
 
+erpnext.accounts.taxes.setup_tax_filters("Sales Taxes and Charges");
+erpnext.accounts.taxes.setup_tax_validations("Sales Order");
+
 frappe.ui.form.on("Sales Order", {
 	setup: function(frm) {
 		frm.custom_make_buttons = {
diff --git a/erpnext/stock/doctype/delivery_note/delivery_note.js b/erpnext/stock/doctype/delivery_note/delivery_note.js
index a648195933b..1df797301e4 100644
--- a/erpnext/stock/doctype/delivery_note/delivery_note.js
+++ b/erpnext/stock/doctype/delivery_note/delivery_note.js
@@ -9,6 +9,10 @@ frappe.provide("erpnext.stock");
 frappe.provide("erpnext.stock.delivery_note");
 frappe.provide("erpnext.accounts.dimensions");
 
+erpnext.accounts.taxes.setup_tax_filters("Sales Taxes and Charges");
+erpnext.accounts.taxes.setup_tax_validations("Delivery Note");
+
+
 frappe.ui.form.on("Delivery Note", {
 	setup: function(frm) {
 		frm.custom_make_buttons = {
diff --git a/erpnext/stock/doctype/purchase_receipt/purchase_receipt.js b/erpnext/stock/doctype/purchase_receipt/purchase_receipt.js
index 35aad78c1a3..5eb7c55087b 100644
--- a/erpnext/stock/doctype/purchase_receipt/purchase_receipt.js
+++ b/erpnext/stock/doctype/purchase_receipt/purchase_receipt.js
@@ -5,6 +5,9 @@
 
 frappe.provide("erpnext.stock");
 
+erpnext.accounts.taxes.setup_tax_filters("Purchase Taxes and Charges");
+erpnext.accounts.taxes.setup_tax_validations("Purchase Receipt");
+
 frappe.ui.form.on("Purchase Receipt", {
 	setup: (frm) => {
 		frm.make_methods = {