diff --git a/erpnext/buying/report/subcontract_order_summary/test_subcontract_order_summary.py b/erpnext/buying/report/subcontract_order_summary/test_subcontract_order_summary.py
new file mode 100644
index 00000000000..e6e0922eaf2
--- /dev/null
+++ b/erpnext/buying/report/subcontract_order_summary/test_subcontract_order_summary.py
@@ -0,0 +1,49 @@
+# Copyright (c) 2026, Frappe Technologies Pvt. Ltd. and Contributors
+# See license.txt
+
+import frappe
+from frappe.utils import add_days, today
+
+from erpnext.buying.report.subcontract_order_summary.subcontract_order_summary import execute
+from erpnext.controllers.tests.test_subcontracting_controller import (
+	get_subcontracting_order,
+	make_bom_for_subcontracted_items,
+	make_raw_materials,
+	make_service_items,
+	make_subcontracted_items,
+)
+from erpnext.tests.utils import ERPNextTestSuite
+
+FG_ITEM = "Subcontracted Item SA7"
+
+
+class TestSubcontractOrderSummary(ERPNextTestSuite):
+	"""The report lists Subcontracting Order finished items with their ordered and
+	received quantities within the transaction-date window."""
+
+	def setUp(self):
+		make_subcontracted_items()
+		make_raw_materials()
+		make_service_items()
+		make_bom_for_subcontracted_items()
+
+	def run_report(self, **extra):
+		filters = frappe._dict(
+			{"company": "_Test Company", "from_date": add_days(today(), -1), "to_date": add_days(today(), 1)}
+		)
+		filters.update(extra)
+		return execute(filters)[1]
+
+	def test_subcontracting_order_is_listed(self):
+		sco = get_subcontracting_order()
+
+		rows = [r for r in self.run_report(name=sco.name) if r.get("item_code") == FG_ITEM]
+		self.assertTrue(rows, "Subcontracting Order finished item missing from report")
+		self.assertEqual(rows[0]["qty"], 10)
+		self.assertEqual(rows[0]["received_qty"], 0)  # nothing received yet
+
+	def test_out_of_range_date_excludes_order(self):
+		sco = get_subcontracting_order()
+
+		data = self.run_report(name=sco.name, from_date="2019-01-01", to_date="2019-01-31")
+		self.assertEqual(data, [])