From dfdd1c6e02e74abeb3a9d67d59f33f1e0dbeab48 Mon Sep 17 00:00:00 2001
From: Ankush Menat <ankush@iwebnotes.com>
Date: Fri, 23 Jul 2021 15:50:37 +0530
Subject: [PATCH] feat: don't recompute taxes

---
 .../sales_taxes_and_charges.json                   | 14 ++++++++++++--
 erpnext/controllers/taxes_and_totals.py            |  7 ++++---
 2 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/erpnext/accounts/doctype/sales_taxes_and_charges/sales_taxes_and_charges.json b/erpnext/accounts/doctype/sales_taxes_and_charges/sales_taxes_and_charges.json
index 1b7a0fe562..cfdb167bbc 100644
--- a/erpnext/accounts/doctype/sales_taxes_and_charges/sales_taxes_and_charges.json
+++ b/erpnext/accounts/doctype/sales_taxes_and_charges/sales_taxes_and_charges.json
@@ -27,7 +27,8 @@
   "base_tax_amount",
   "base_total",
   "base_tax_amount_after_discount_amount",
-  "item_wise_tax_detail"
+  "item_wise_tax_detail",
+  "dont_recompute_tax"
  ],
  "fields": [
   {
@@ -200,13 +201,22 @@
    "fieldname": "included_in_paid_amount",
    "fieldtype": "Check",
    "label": "Considered In Paid Amount"
+  },
+  {
+   "default": "0",
+   "fieldname": "dont_recompute_tax",
+   "fieldtype": "Check",
+   "hidden": 1,
+   "label": "Dont Recompute tax",
+   "print_hide": 1,
+   "read_only": 1
   }
  ],
  "idx": 1,
  "index_web_pages_for_search": 1,
  "istable": 1,
  "links": [],
- "modified": "2021-06-14 01:44:36.899147",
+ "modified": "2021-07-27 12:40:59.051803",
  "modified_by": "Administrator",
  "module": "Accounts",
  "name": "Sales Taxes and Charges",
diff --git a/erpnext/controllers/taxes_and_totals.py b/erpnext/controllers/taxes_and_totals.py
index 56da5b71da..099c7d4346 100644
--- a/erpnext/controllers/taxes_and_totals.py
+++ b/erpnext/controllers/taxes_and_totals.py
@@ -152,7 +152,7 @@ class calculate_taxes_and_totals(object):
 				validate_taxes_and_charges(tax)
 				validate_inclusive_tax(tax, self.doc)
 
-			if not self.doc.get('is_consolidated'):
+			if not (self.doc.get('is_consolidated') or tax.get("dont_recompute_tax")):
 				tax.item_wise_tax_detail = {}
 
 			tax_fields = ["total", "tax_amount_after_discount_amount",
@@ -347,7 +347,7 @@ class calculate_taxes_and_totals(object):
 		elif tax.charge_type == "On Item Quantity":
 			current_tax_amount = tax_rate * item.qty
 
-		if not self.doc.get("is_consolidated"):
+		if not (self.doc.get("is_consolidated") or tax.get("dont_recompute_tax")):
 			self.set_item_wise_tax(item, tax, tax_rate, current_tax_amount)
 
 		return current_tax_amount
@@ -455,7 +455,8 @@ class calculate_taxes_and_totals(object):
 	def _cleanup(self):
 		if not self.doc.get('is_consolidated'):
 			for tax in self.doc.get("taxes"):
-				tax.item_wise_tax_detail = json.dumps(tax.item_wise_tax_detail, separators=(',', ':'))
+				if not tax.get("dont_recompute_tax"):
+					tax.item_wise_tax_detail = json.dumps(tax.item_wise_tax_detail, separators=(',', ':'))
 
 	def set_discount_amount(self):
 		if self.doc.additional_discount_percentage: