diff --git a/erpnext/assets/report/fixed_asset_register/test_fixed_asset_register.py b/erpnext/assets/report/fixed_asset_register/test_fixed_asset_register.py
new file mode 100644
index 00000000000..d419a839fee
--- /dev/null
+++ b/erpnext/assets/report/fixed_asset_register/test_fixed_asset_register.py
@@ -0,0 +1,72 @@
+# Copyright (c) 2026, Frappe Technologies Pvt. Ltd. and Contributors
+# See license.txt
+
+import frappe
+
+from erpnext.assets.doctype.asset.test_asset import create_asset, set_depreciation_settings_in_company
+from erpnext.assets.report.fixed_asset_register.fixed_asset_register import execute
+from erpnext.tests.utils import ERPNextTestSuite
+
+
+class TestFixedAssetRegister(ERPNextTestSuite):
+	def setUp(self):
+		set_depreciation_settings_in_company()
+
+	def run_report(self, **extra):
+		filters = frappe._dict(company="_Test Company", **extra)
+		return execute(filters)[1]
+
+	def test_asset_appears_with_purchase_value(self):
+		asset = create_asset(
+			item_code="Macbook Pro", net_purchase_amount=100000, purchase_amount=100000, submit=True
+		)
+
+		row = next(row for row in self.run_report() if row["asset_id"] == asset.name)
+		self.assertEqual(row["net_purchase_amount"], 100000)
+		self.assertEqual(row["asset_value"], 100000)  # no depreciation yet
+		self.assertEqual(row["asset_category"], "Computers")
+
+	def test_asset_value_reduced_by_opening_depreciation(self):
+		asset = create_asset(
+			item_code="Macbook Pro",
+			net_purchase_amount=100000,
+			purchase_amount=100000,
+			opening_accumulated_depreciation=20000,
+			opening_number_of_booked_depreciations=2,
+			submit=True,
+		)
+
+		row = next(row for row in self.run_report() if row["asset_id"] == asset.name)
+		self.assertEqual(row["opening_accumulated_depreciation"], 20000)
+		self.assertEqual(row["asset_value"], 80000)  # 100000 - 20000
+
+	def test_status_in_location_filter_shows_active_asset(self):
+		asset = create_asset(
+			item_code="Macbook Pro", net_purchase_amount=100000, purchase_amount=100000, submit=True
+		)
+
+		ids = {row["asset_id"] for row in self.run_report(status="In Location")}
+		self.assertIn(asset.name, ids)
+
+	def test_asset_category_filter(self):
+		asset = create_asset(
+			item_code="Macbook Pro", net_purchase_amount=100000, purchase_amount=100000, submit=True
+		)
+
+		ids = {row["asset_id"] for row in self.run_report(asset_category="Computers")}
+		self.assertIn(asset.name, ids)
+
+	def test_group_by_asset_category_sums_values(self):
+		create_asset(item_code="Macbook Pro", net_purchase_amount=100000, purchase_amount=100000, submit=True)
+		create_asset(
+			item_code="Macbook Pro",
+			asset_name="Macbook Pro 2",
+			net_purchase_amount=50000,
+			purchase_amount=50000,
+			submit=True,
+		)
+
+		rows = self.run_report(group_by="Asset Category")
+		computers = next(row for row in rows if row["asset_category"] == "Computers")
+		self.assertEqual(computers["net_purchase_amount"], 150000)
+		self.assertEqual(computers["asset_value"], 150000)