diff --git a/src/blenderbim/blenderbim/bim/helper.py b/src/blenderbim/blenderbim/bim/helper.py
index 557aca2eb9..4aa5231c1c 100644
--- a/src/blenderbim/blenderbim/bim/helper.py
+++ b/src/blenderbim/blenderbim/bim/helper.py
@@ -148,6 +148,10 @@ def get_obj_ifc_definition_id(context, obj, obj_type):
         return context.scene.BIMTaskTreeProperties.tasks[
             context.scene.BIMWorkScheduleProperties.active_task_index
         ].ifc_definition_id
+    elif obj_type == "Cost":
+        return context.scene.BIMCostProperties.cost_items[
+            context.scene.BIMCostProperties.active_cost_item_index
+        ].ifc_definition_id
     elif obj_type == "Resource":
         return context.scene.BIMResourceTreeProperties.resources[
             context.scene.BIMResourceProperties.active_resource_index
diff --git a/src/blenderbim/blenderbim/bim/module/classification/__init__.py b/src/blenderbim/blenderbim/bim/module/classification/__init__.py
index db05b1e1a8..f5fdcaaaed 100644
--- a/src/blenderbim/blenderbim/bim/module/classification/__init__.py
+++ b/src/blenderbim/blenderbim/bim/module/classification/__init__.py
@@ -39,6 +39,7 @@ classes = (
     ui.BIM_PT_classifications,
     ui.BIM_PT_classification_references,
     ui.BIM_PT_material_classifications,
+    ui.BIM_PT_cost_classifications,
     ui.BIM_UL_classifications,
 )
 
diff --git a/src/blenderbim/blenderbim/bim/module/classification/data.py b/src/blenderbim/blenderbim/bim/module/classification/data.py
index d9422109bf..6e12ecc83f 100644
--- a/src/blenderbim/blenderbim/bim/module/classification/data.py
+++ b/src/blenderbim/blenderbim/bim/module/classification/data.py
@@ -28,6 +28,7 @@ def refresh():
     ClassificationsData.is_loaded = False
     ClassificationReferencesData.is_loaded = False
     MaterialClassificationsData.is_loaded = False
+    CostClassificationsData.is_loaded = False
 
 
 class ClassificationsData:
@@ -114,3 +115,27 @@ class MaterialClassificationsData(ReferencesData):
                 del data["ReferencedSource"]
                 results.append(data)
         return results
+
+
+class CostClassificationsData(ReferencesData):
+    data = {}
+    is_loaded = False
+
+    @classmethod
+    def load(cls):
+        cls.is_loaded = True
+        cls.data["references"] = cls.references()
+        cls.data["is_available_classification_added"] = cls.is_available_classification_added()
+
+    @classmethod
+    def references(cls):
+        results = []
+        element = tool.Ifc.get().by_id(bpy.context.scene.BIMCostProperties.cost_items[
+            bpy.context.scene.BIMCostProperties.active_cost_item_index
+        ].ifc_definition_id)
+        if element:
+            for reference in ifcopenshell.util.classification.get_references(element):
+                data = reference.get_info()
+                del data["ReferencedSource"]
+                results.append(data)
+        return results
diff --git a/src/blenderbim/blenderbim/bim/module/classification/ui.py b/src/blenderbim/blenderbim/bim/module/classification/ui.py
index d54867e012..b0c3cf5d18 100644
--- a/src/blenderbim/blenderbim/bim/module/classification/ui.py
+++ b/src/blenderbim/blenderbim/bim/module/classification/ui.py
@@ -25,6 +25,7 @@ from blenderbim.bim.module.classification.data import (
     ClassificationsData,
     ClassificationReferencesData,
     MaterialClassificationsData,
+    CostClassificationsData,
 )
 
 
@@ -200,6 +201,30 @@ class BIM_PT_material_classifications(Panel, ReferenceUI):
         self.draw_ui(context)
 
 
+class BIM_PT_cost_classifications(Panel, ReferenceUI):
+    bl_label = "IFC Cost Classifications"
+    bl_idname = "BIM_PT_cost_classifications"
+    bl_options = {"DEFAULT_CLOSED"}
+    bl_space_type = "PROPERTIES"
+    bl_region_type = "WINDOW"
+    bl_context = "scene"
+    bl_parent_id = "BIM_PT_cost_schedules"
+
+    @classmethod
+    def poll(cls, context):
+        if not tool.Ifc.get():
+            return False
+        return bool(context.scene.BIMCostProperties.cost_items)
+
+    def draw(self, context):
+        if not CostClassificationsData.is_loaded:
+            CostClassificationsData.load()
+        self.data = CostClassificationsData
+        self.obj = ""
+        self.obj_type = "Cost"
+        self.draw_ui(context)
+
+
 class BIM_UL_classifications(UIList):
     def draw_item(self, context, layout, data, item, icon, active_data, active_propname):
         if item:
diff --git a/src/blenderbim/blenderbim/bim/module/cost/prop.py b/src/blenderbim/blenderbim/bim/module/cost/prop.py
index 69ac4f825f..9ed9dc65de 100644
--- a/src/blenderbim/blenderbim/bim/module/cost/prop.py
+++ b/src/blenderbim/blenderbim/bim/module/cost/prop.py
@@ -19,6 +19,7 @@
 import bpy
 import ifcopenshell.api
 from blenderbim.bim.ifc import IfcStore
+from blenderbim.bim.module.classification.data import CostClassificationsData
 from ifcopenshell.api.cost.data import Data
 from ifcopenshell.api.pset.data import Data as PsetData
 from blenderbim.bim.prop import StrProperty, Attribute
@@ -164,6 +165,7 @@ def update_active_cost_item_index(self, context):
         bpy.ops.bim.load_cost_item_types()
     else:
         bpy.ops.bim.load_cost_item_quantities()
+    CostClassificationsData.load()
 
 
 def update_cost_item_identification(self, context):
diff --git a/src/blenderbim/pytest.ini b/src/blenderbim/pytest.ini
index 7c45fa340d..dc9d7f02f6 100644
--- a/src/blenderbim/pytest.ini
+++ b/src/blenderbim/pytest.ini
@@ -6,6 +6,7 @@ markers =
     brick
     classification
     context
+    cost
     debug
     demo
     document
diff --git a/src/blenderbim/test/bim/feature/classification.feature b/src/blenderbim/test/bim/feature/classification.feature
index 16a270d987..48b5ae0dc0 100644
--- a/src/blenderbim/test/bim/feature/classification.feature
+++ b/src/blenderbim/test/bim/feature/classification.feature
@@ -216,3 +216,34 @@ Scenario: Remove classification reference - material
     And I press "bim.add_classification_reference(reference={reference}, obj='Material', obj_type='Material')"
     When I press "bim.remove_classification_reference(reference={reference}, obj='Material', obj_type='Material')"
     Then nothing happens
+
+Scenario: Add classification reference - cost
+    Given an empty IFC project
+    And I press "bim.load_classification_library(filepath='{cwd}/test/files/classification.ifc')"
+    And the variable "classification" is "{classification_ifc}.by_type('IfcClassification')[0].id()"
+    And I set "scene.BIMClassificationProperties.available_classifications" to "{classification}"
+    And I press "bim.add_classification"
+    And I press "bim.add_cost_schedule"
+    And the variable "cost_schedule" is "{ifc}.by_type('IfcCostSchedule')[0].id()"
+    And I press "bim.enable_editing_cost_items(cost_schedule={cost_schedule})"
+    And I press "bim.add_summary_cost_item(cost_schedule={cost_schedule})"
+    And I press "bim.change_classification_level(parent_id={classification})"
+    And the variable "reference" is "{classification_ifc}.by_type('IfcClassificationReference')[0].id()"
+    When I press "bim.add_classification_reference(reference={reference}, obj='', obj_type='Cost')"
+    Then nothing happens
+
+Scenario: Remove classification reference - cost
+    Given an empty IFC project
+    And I press "bim.load_classification_library(filepath='{cwd}/test/files/classification.ifc')"
+    And the variable "classification" is "{classification_ifc}.by_type('IfcClassification')[0].id()"
+    And I set "scene.BIMClassificationProperties.available_classifications" to "{classification}"
+    And I press "bim.add_classification"
+    And I press "bim.add_cost_schedule"
+    And the variable "cost_schedule" is "{ifc}.by_type('IfcCostSchedule')[0].id()"
+    And I press "bim.enable_editing_cost_items(cost_schedule={cost_schedule})"
+    And I press "bim.add_summary_cost_item(cost_schedule={cost_schedule})"
+    And I press "bim.change_classification_level(parent_id={classification})"
+    And the variable "reference" is "{classification_ifc}.by_type('IfcClassificationReference')[0].id()"
+    And I press "bim.add_classification_reference(reference={reference}, obj='', obj_type='Cost')"
+    When I press "bim.remove_classification_reference(reference={reference}, obj='', obj_type='Cost')"
+    Then nothing happens
diff --git a/src/blenderbim/test/bim/feature/cost.feature b/src/blenderbim/test/bim/feature/cost.feature
new file mode 100644
index 0000000000..c41d8157d1
--- /dev/null
+++ b/src/blenderbim/test/bim/feature/cost.feature
@@ -0,0 +1,22 @@
+@cost
+Feature: Cost
+
+Scenario: Add cost schedule
+    Given an empty IFC project
+    When I press "bim.add_cost_schedule"
+    Then nothing happens
+
+Scenario: Enable editing cost items
+    Given an empty IFC project
+    When I press "bim.add_cost_schedule"
+    And the variable "cost_schedule" is "{ifc}.by_type('IfcCostSchedule')[0].id()"
+    And I press "bim.enable_editing_cost_items(cost_schedule={cost_schedule})"
+    Then nothing happens
+
+Scenario: Add summary cost item
+    Given an empty IFC project
+    When I press "bim.add_cost_schedule"
+    And the variable "cost_schedule" is "{ifc}.by_type('IfcCostSchedule')[0].id()"
+    And I press "bim.enable_editing_cost_items(cost_schedule={cost_schedule})"
+    And I press "bim.add_summary_cost_item(cost_schedule={cost_schedule})"
+    Then nothing happens