diff --git a/addons/sale_timesheet/models/project.py b/addons/sale_timesheet/models/project.py
index 9c128d3a53a..10521746604 100644
--- a/addons/sale_timesheet/models/project.py
+++ b/addons/sale_timesheet/models/project.py
@@ -78,9 +78,9 @@ class Project(models.Model):
                 - value = 'employee_rate': [('sale_line_employee_ids', '!=', False), ('allow_billable', '=', True)]
                 - value is False: [('allow_billable', '=', False)]
             - operator = '!=':
-                - value = 'task_rate': ['|', ('sale_line_employee_ids', '!=', False), ('sale_line_id', '!=', False), ('allow_billable', '=', True)]
-                - value = 'fixed_rate': ['|', ('sale_line_employee_ids', '!=', False), ('sale_line_id', '=', False), ('allow_billable', '=', True)]
-                - value = 'employee_rate': [('sale_line_employee_ids', '=', False), ('allow_billable', '=', True)]
+                - value = 'task_rate': ['|', '|', ('sale_line_employee_ids', '!=', False), ('sale_line_id', '!=', False), ('allow_billable', '=', False)]
+                - value = 'fixed_rate': ['|', '|', ('sale_line_employee_ids', '!=', False), ('sale_line_id', '=', False), ('allow_billable', '=', False)]
+                - value = 'employee_rate': ['|', ('sale_line_employee_ids', '=', False), ('allow_billable', '=', False)]
                 - value is False: [('allow_billable', '!=', False)]
 
             :param operator: the supported operator is either '=' or '!='.
@@ -102,13 +102,13 @@ class Project(models.Model):
         elif value == 'fixed_rate':
             domain = [sol_cond, expression.NOT_OPERATOR, mapping_cond]
         else:  # value == 'employee_rate'
-            domain = [sol_cond, mapping_cond]
+            domain = [mapping_cond]
 
+        domain = expression.AND([domain, [('allow_billable', '=', True)]])
         domain = expression.normalize_domain(domain)
         if operator != '=':
             domain.insert(0, expression.NOT_OPERATOR)
         domain = expression.distribute_not(domain)
-        domain = expression.AND([domain, [('allow_billable', '=', True)]])
         return domain
 
     @api.depends('analytic_account_id', 'timesheet_ids')
diff --git a/addons/sale_timesheet/tests/test_project_pricing_type.py b/addons/sale_timesheet/tests/test_project_pricing_type.py
index b3538f9b4d7..e50c332acca 100644
--- a/addons/sale_timesheet/tests/test_project_pricing_type.py
+++ b/addons/sale_timesheet/tests/test_project_pricing_type.py
@@ -23,6 +23,14 @@ class TestProjectPricingType(TestCommonSaleTimesheet):
         project = self.project_non_billable
         self.assertFalse(project.allow_billable, 'The allow_billable should be false if the project is non billable.')
         self.assertFalse(project.pricing_type, 'The pricing type of this project should be equal to False since it is non billable.')
+        self.assertFalse(project.filtered_domain(project._search_pricing_type('=', 'task_rate')))
+        self.assertFalse(project.filtered_domain(project._search_pricing_type('=', 'fixed_rate')))
+        self.assertFalse(project.filtered_domain(project._search_pricing_type('=', 'employee_rate')))
+        self.assertTrue(project.filtered_domain(project._search_pricing_type('=', False)))
+        self.assertTrue(project.filtered_domain(project._search_pricing_type('!=', 'task_rate')))
+        self.assertTrue(project.filtered_domain(project._search_pricing_type('!=', 'fixed_rate')))
+        self.assertTrue(project.filtered_domain(project._search_pricing_type('!=', 'employee_rate')))
+        self.assertFalse(project.filtered_domain(project._search_pricing_type('!=', False)))
 
         # 2) Set allow_billable to True and check if the pricing_type is equal to task_rate (if no SOL and no mappings)
         project.write({
@@ -34,6 +42,14 @@ class TestProjectPricingType(TestCommonSaleTimesheet):
         self.assertFalse(project.sale_line_id, 'The sales order item should be unset.')
         self.assertFalse(project.sale_line_employee_ids, 'The employee mappings should be empty.')
         self.assertEqual(project.pricing_type, 'task_rate', 'The pricing type should be equal to task_rate.')
+        self.assertTrue(project.filtered_domain(project._search_pricing_type('=', 'task_rate')))
+        self.assertFalse(project.filtered_domain(project._search_pricing_type('=', 'fixed_rate')))
+        self.assertFalse(project.filtered_domain(project._search_pricing_type('=', 'employee_rate')))
+        self.assertFalse(project.filtered_domain(project._search_pricing_type('=', False)))
+        self.assertFalse(project.filtered_domain(project._search_pricing_type('!=', 'task_rate')))
+        self.assertTrue(project.filtered_domain(project._search_pricing_type('!=', 'fixed_rate')))
+        self.assertTrue(project.filtered_domain(project._search_pricing_type('!=', 'employee_rate')))
+        self.assertTrue(project.filtered_domain(project._search_pricing_type('!=', False)))
 
         # 3) Set a customer and a SOL in the project and check if the pricing_type is equal to fixed_rate (project rate)
         project.write({
@@ -44,6 +60,14 @@ class TestProjectPricingType(TestCommonSaleTimesheet):
         self.assertEqual(project.sale_order_id, self.so, 'The sales order should be equal to the one set in the project.')
         self.assertEqual(project.sale_line_id, self.so.order_line[0], 'The sales order item should be the one chosen.')
         self.assertEqual(project.pricing_type, 'fixed_rate', 'The pricing type should be equal to fixed_rate since the project has a sales order item.')
+        self.assertFalse(project.filtered_domain(project._search_pricing_type('=', 'task_rate')))
+        self.assertTrue(project.filtered_domain(project._search_pricing_type('=', 'fixed_rate')))
+        self.assertFalse(project.filtered_domain(project._search_pricing_type('=', 'employee_rate')))
+        self.assertFalse(project.filtered_domain(project._search_pricing_type('=', False)))
+        self.assertTrue(project.filtered_domain(project._search_pricing_type('!=', 'task_rate')))
+        self.assertFalse(project.filtered_domain(project._search_pricing_type('!=', 'fixed_rate')))
+        self.assertTrue(project.filtered_domain(project._search_pricing_type('!=', 'employee_rate')))
+        self.assertTrue(project.filtered_domain(project._search_pricing_type('!=', False)))
 
         # 4) Set a employee mapping and check if the pricing_type is equal to employee_rate
         project.write({
@@ -55,6 +79,14 @@ class TestProjectPricingType(TestCommonSaleTimesheet):
 
         self.assertEqual(len(project.sale_line_employee_ids), 1, 'The project should have an employee mapping.')
         self.assertEqual(project.pricing_type, 'employee_rate', 'The pricing type should be equal to employee_rate since the project has an employee mapping.')
+        self.assertFalse(project.filtered_domain(project._search_pricing_type('=', 'task_rate')))
+        self.assertFalse(project.filtered_domain(project._search_pricing_type('=', 'fixed_rate')))
+        self.assertTrue(project.filtered_domain(project._search_pricing_type('=', 'employee_rate')))
+        self.assertFalse(project.filtered_domain(project._search_pricing_type('=', False)))
+        self.assertTrue(project.filtered_domain(project._search_pricing_type('!=', 'task_rate')))
+        self.assertTrue(project.filtered_domain(project._search_pricing_type('!=', 'fixed_rate')))
+        self.assertFalse(project.filtered_domain(project._search_pricing_type('!=', 'employee_rate')))
+        self.assertTrue(project.filtered_domain(project._search_pricing_type('!=', False)))
 
         # Even if the project has no sales order item, since it has an employee mapping, the pricing type must be equal to employee_rate.
         project.write({
@@ -63,3 +95,11 @@ class TestProjectPricingType(TestCommonSaleTimesheet):
         self.assertFalse(project.sale_order_id, 'The sales order of the project should be empty.')
         self.assertFalse(project.sale_line_id, 'The sales order item of the project should be empty.')
         self.assertEqual(project.pricing_type, 'employee_rate', 'The pricing type should always be equal to employee_rate.')
+        self.assertFalse(project.filtered_domain(project._search_pricing_type('=', 'task_rate')))
+        self.assertFalse(project.filtered_domain(project._search_pricing_type('=', 'fixed_rate')))
+        self.assertTrue(project.filtered_domain(project._search_pricing_type('=', 'employee_rate')))
+        self.assertFalse(project.filtered_domain(project._search_pricing_type('=', False)))
+        self.assertTrue(project.filtered_domain(project._search_pricing_type('!=', 'task_rate')))
+        self.assertTrue(project.filtered_domain(project._search_pricing_type('!=', 'fixed_rate')))
+        self.assertFalse(project.filtered_domain(project._search_pricing_type('!=', 'employee_rate')))
+        self.assertTrue(project.filtered_domain(project._search_pricing_type('!=', False)))