diff --git a/erpnext/accounts/report/billed_items_to_be_received/test_billed_items_to_be_received.py b/erpnext/accounts/report/billed_items_to_be_received/test_billed_items_to_be_received.py
new file mode 100644
index 00000000000..1112a9f7403
--- /dev/null
+++ b/erpnext/accounts/report/billed_items_to_be_received/test_billed_items_to_be_received.py
@@ -0,0 +1,89 @@
+# Copyright (c) 2026, Frappe Technologies Pvt. Ltd. and Contributors
+# See license.txt
+
+import frappe
+from frappe.utils import today
+
+from erpnext.accounts.doctype.purchase_invoice.test_purchase_invoice import make_purchase_invoice
+from erpnext.accounts.report.billed_items_to_be_received.billed_items_to_be_received import execute
+from erpnext.tests.utils import ERPNextTestSuite
+
+
+class TestBilledItemsToBeReceived(ERPNextTestSuite):
+	def run_report(self, **extra):
+		filters = frappe._dict(
+			{
+				"company": "_Test Company",
+				"posting_date": today(),
+			}
+		)
+		filters.update(extra)
+		return execute(filters)[1]
+
+	def get_rows_for(self, data, pi_name):
+		return [row for row in data if row.get("name") == pi_name]
+
+	def test_billed_but_not_received_item_appears(self):
+		pi = make_purchase_invoice(
+			supplier="_Test Supplier",
+			item_code="_Test Item",
+			qty=5,
+			rate=200,
+			update_stock=0,
+		)
+
+		rows = self.get_rows_for(self.run_report(), pi.name)
+		self.assertEqual(len(rows), 1)
+
+		row = rows[0]
+		self.assertEqual(row.get("supplier"), "_Test Supplier")
+		self.assertEqual(row.get("company"), "_Test Company")
+		self.assertEqual(row.get("item_code"), "_Test Item")
+		self.assertEqual(row.get("qty"), 5)
+		self.assertEqual(row.get("received_qty"), 0)
+		self.assertEqual(row.get("rate"), 200)
+		self.assertEqual(row.get("amount"), 1000)
+
+	def test_stock_updating_invoice_is_excluded(self):
+		"""update_stock=1 means the item is already received; it must not appear."""
+		pi = make_purchase_invoice(
+			supplier="_Test Supplier",
+			item_code="_Test Item",
+			qty=5,
+			rate=200,
+			update_stock=1,
+		)
+
+		rows = self.get_rows_for(self.run_report(), pi.name)
+		self.assertEqual(len(rows), 0)
+
+	def test_fully_received_invoice_drops_off(self):
+		"""When per_received reaches 100 the invoice is fully received and drops off."""
+		pi = make_purchase_invoice(
+			supplier="_Test Supplier",
+			item_code="_Test Item",
+			qty=5,
+			rate=200,
+			update_stock=0,
+		)
+
+		# Present while nothing has been received.
+		self.assertEqual(len(self.get_rows_for(self.run_report(), pi.name)), 1)
+
+		frappe.db.set_value("Purchase Invoice", pi.name, "per_received", 100)
+
+		# Absent once fully received.
+		self.assertEqual(len(self.get_rows_for(self.run_report(), pi.name)), 0)
+
+	def test_posting_date_upper_bound_filter(self):
+		"""A PI posted after the filter's posting_date must be excluded."""
+		pi = make_purchase_invoice(
+			supplier="_Test Supplier",
+			item_code="_Test Item",
+			qty=5,
+			rate=200,
+			update_stock=0,
+		)
+
+		rows = self.get_rows_for(self.run_report(posting_date="2000-01-01"), pi.name)
+		self.assertEqual(len(rows), 0)