diff --git a/erpnext/accounts/party.py b/erpnext/accounts/party.py
index 03cf82a..4996203 100644
--- a/erpnext/accounts/party.py
+++ b/erpnext/accounts/party.py
@@ -33,6 +33,7 @@
 from erpnext import get_company_currency
 from erpnext.accounts.utils import get_fiscal_year
 from erpnext.exceptions import InvalidAccountCurrency, PartyDisabled, PartyFrozen
+from erpnext.utilities.regional import temporary_flag
 
 PURCHASE_TRANSACTION_TYPES = {"Purchase Order", "Purchase Receipt", "Purchase Invoice"}
 SALES_TRANSACTION_TYPES = {
@@ -261,9 +262,8 @@
 	)
 
 	if doctype in TRANSACTION_TYPES:
-		# required to set correct region
-		frappe.flags.company = company
-		get_regional_address_details(party_details, doctype, company)
+		with temporary_flag("company", company):
+			get_regional_address_details(party_details, doctype, company)
 
 	return party_address, shipping_address
 
diff --git a/erpnext/controllers/accounts_controller.py b/erpnext/controllers/accounts_controller.py
index 4193b53..7940489 100644
--- a/erpnext/controllers/accounts_controller.py
+++ b/erpnext/controllers/accounts_controller.py
@@ -56,6 +56,7 @@
 	get_item_tax_map,
 	get_item_warehouse,
 )
+from erpnext.utilities.regional import temporary_flag
 from erpnext.utilities.transaction_base import TransactionBase
 
 
@@ -760,7 +761,9 @@
 			}
 		)
 
-		update_gl_dict_with_regional_fields(self, gl_dict)
+		with temporary_flag("company", self.company):
+			update_gl_dict_with_regional_fields(self, gl_dict)
+
 		accounting_dimensions = get_accounting_dimensions()
 		dimension_dict = frappe._dict()
 
diff --git a/erpnext/controllers/taxes_and_totals.py b/erpnext/controllers/taxes_and_totals.py
index 4661c5c..77006b9 100644
--- a/erpnext/controllers/taxes_and_totals.py
+++ b/erpnext/controllers/taxes_and_totals.py
@@ -18,6 +18,7 @@
 	validate_taxes_and_charges,
 )
 from erpnext.stock.get_item_details import _get_item_tax_template
+from erpnext.utilities.regional import temporary_flag
 
 
 class calculate_taxes_and_totals(object):
@@ -942,7 +943,6 @@
 def get_itemised_tax_breakup_html(doc):
 	if not doc.taxes:
 		return
-	frappe.flags.company = doc.company
 
 	# get headers
 	tax_accounts = []
@@ -952,15 +952,11 @@
 		if tax.description not in tax_accounts:
 			tax_accounts.append(tax.description)
 
-	headers = get_itemised_tax_breakup_header(doc.doctype + " Item", tax_accounts)
-
-	# get tax breakup data
-	itemised_tax, itemised_taxable_amount = get_itemised_tax_breakup_data(doc)
-
-	get_rounded_tax_amount(itemised_tax, doc.precision("tax_amount", "taxes"))
-
-	update_itemised_tax_data(doc)
-	frappe.flags.company = None
+	with temporary_flag("company", doc.company):
+		headers = get_itemised_tax_breakup_header(doc.doctype + " Item", tax_accounts)
+		itemised_tax, itemised_taxable_amount = get_itemised_tax_breakup_data(doc)
+		get_rounded_tax_amount(itemised_tax, doc.precision("tax_amount", "taxes"))
+		update_itemised_tax_data(doc)
 
 	return frappe.render_template(
 		"templates/includes/itemised_tax_breakup.html",
@@ -977,10 +973,8 @@
 @frappe.whitelist()
 def get_round_off_applicable_accounts(company, account_list):
 	# required to set correct region
-	frappe.flags.company = company
-	account_list = get_regional_round_off_accounts(company, account_list)
-
-	return account_list
+	with temporary_flag("company", company):
+		return get_regional_round_off_accounts(company, account_list)
 
 
 @erpnext.allow_regional
diff --git a/erpnext/utilities/regional.py b/erpnext/utilities/regional.py
new file mode 100644
index 0000000..858976f
--- /dev/null
+++ b/erpnext/utilities/regional.py
@@ -0,0 +1,13 @@
+from contextlib import contextmanager
+
+import frappe
+
+
+@contextmanager
+def temporary_flag(flag_name, value):
+	flags = frappe.local.flags
+	flags[flag_name] = value
+	try:
+		yield
+	finally:
+		flags.pop(flag_name, None)