From 68338abe07b52479a4235fd4bf3a81c92bba5db6 Mon Sep 17 00:00:00 2001
From: NaviN <118178330+Navin-S-R@users.noreply.github.com>
Date: Tue, 3 Feb 2026 21:03:14 +0530
Subject: [PATCH] fix: merge taxes in purchase receipt when get items from
 multiple purchase invoices (#51422)

* fix: merge taxes in purchase receipt when get items from multiple purchase invoices

* fix: make merge tax configurable

* chore: follow standard merge taxes method

* chore: follow standard merge taxes method

(cherry picked from commit 6fde0a6261475927cc75d3daf917b27c88348518)

# Conflicts:
#	erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
---
 .../purchase_invoice/purchase_invoice.py      | 21 +++++++++++++++++--
 erpnext/public/js/utils.js                    |  2 +-
 2 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
index 8be04ab67a1..c53d72f9eba 100644
--- a/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
+++ b/erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py
@@ -38,7 +38,7 @@ from erpnext.accounts.utils import get_account_currency, get_fiscal_year, update
 from erpnext.assets.doctype.asset.asset import is_cwip_accounting_enabled
 from erpnext.assets.doctype.asset_category.asset_category import get_asset_category_account
 from erpnext.buying.utils import check_on_hold_or_closed_status
-from erpnext.controllers.accounts_controller import validate_account_head
+from erpnext.controllers.accounts_controller import merge_taxes, validate_account_head
 from erpnext.controllers.buying_controller import BuyingController
 from erpnext.stock import get_warehouse_account_map
 from erpnext.stock.doctype.purchase_receipt.purchase_receipt import (
@@ -2083,6 +2083,19 @@ def make_purchase_receipt(source_name, target_doc=None, args=None):
 	if isinstance(args, str):
 		args = json.loads(args)
 
+	def post_parent_process(source_parent, target_parent):
+		remove_items_with_zero_qty(target_parent)
+		set_missing_values(source_parent, target_parent)
+
+	def remove_items_with_zero_qty(target_parent):
+		target_parent.items = [row for row in target_parent.get("items") if row.get("qty") != 0]
+
+	def set_missing_values(source_parent, target_parent):
+		target_parent.run_method("set_missing_values")
+		if args and args.get("merge_taxes"):
+			merge_taxes(source_parent, target_parent)
+		target_parent.run_method("calculate_taxes_and_totals")
+
 	def update_item(obj, target, source_parent):
 		target.qty = flt(obj.qty) - flt(obj.received_qty)
 		target.received_qty = flt(obj.qty) - flt(obj.received_qty)
@@ -2122,7 +2135,11 @@ def make_purchase_receipt(source_name, target_doc=None, args=None):
 				"postprocess": update_item,
 				"condition": lambda doc: abs(doc.received_qty) < abs(doc.qty) and select_item(doc),
 			},
-			"Purchase Taxes and Charges": {"doctype": "Purchase Taxes and Charges"},
+			"Purchase Taxes and Charges": {
+				"doctype": "Purchase Taxes and Charges",
+				"reset_value": not (args and args.get("merge_taxes")),
+				"ignore": args.get("merge_taxes") if args else 0,
+			},
 		},
 		target_doc,
 	)
diff --git a/erpnext/public/js/utils.js b/erpnext/public/js/utils.js
index 5942b34158d..59d2c90dc14 100755
--- a/erpnext/public/js/utils.js
+++ b/erpnext/public/js/utils.js
@@ -979,7 +979,7 @@ erpnext.utils.map_current_doc = function (opts) {
 
 	if (opts.source_doctype) {
 		let data_fields = [];
-		if (["Purchase Receipt", "Delivery Note"].includes(opts.source_doctype)) {
+		if (["Purchase Receipt", "Delivery Note", "Purchase Invoice"].includes(opts.source_doctype)) {
 			let target_meta = frappe.get_meta(cur_frm.doc.doctype);
 			if (target_meta.fields.find((f) => f.fieldname === "taxes")) {
 				data_fields.push({