diff --git a/addons/hr/models/hr_employee_base.py b/addons/hr/models/hr_employee_base.py
index b80e757d85e..6ee547f2789 100644
--- a/addons/hr/models/hr_employee_base.py
+++ b/addons/hr/models/hr_employee_base.py
@@ -31,7 +31,9 @@ class HrEmployeeBase(models.AbstractModel):
     parent_id = fields.Many2one('hr.employee', 'Manager', domain="['|', ('company_id', '=', False), ('company_id', '=', company_id)]")
     coach_id = fields.Many2one(
         'hr.employee', 'Coach', compute='_compute_coach', store=True, readonly=False,
-        domain="['|', ('company_id', '=', False), ('company_id', '=', company_id)]")
+        domain="['|', ('company_id', '=', False), ('company_id', '=', company_id)]",
+        help='Select the "Employee" who is the coach of this employee.\n'
+             'The "Coach" has no specific rights or responsibilities by default.')
     tz = fields.Selection(
         string='Timezone', related='resource_id.tz', readonly=False,
         help="This field is used in order to define in which timezone the resources will work.")
diff --git a/addons/hr_expense/models/hr_employee.py b/addons/hr_expense/models/hr_employee.py
index 1ef5997a6fe..3462ab40d7b 100644
--- a/addons/hr_expense/models/hr_employee.py
+++ b/addons/hr_expense/models/hr_employee.py
@@ -21,7 +21,8 @@ class Employee(models.Model):
         'res.users', string='Expense',
         domain=_group_hr_expense_user_domain,
         compute='_compute_expense_manager', store=True, readonly=False,
-        help="User responsible of expense approval. Should be Expense approver.")
+        help='Select the user responsible for approving "Expenses" of this employee.\n'
+             'If empty, the approval is done by an Administrator or Approver (determined in settings/users).')
 
     @api.depends('parent_id')
     def _compute_expense_manager(self):
diff --git a/addons/hr_holidays/models/hr_employee.py b/addons/hr_holidays/models/hr_employee.py
index 1e7ed2d5a89..4a2343fda12 100644
--- a/addons/hr_holidays/models/hr_employee.py
+++ b/addons/hr_holidays/models/hr_employee.py
@@ -13,7 +13,8 @@ class HrEmployeeBase(models.AbstractModel):
     leave_manager_id = fields.Many2one(
         'res.users', string='Time Off',
         compute='_compute_leave_manager', store=True, readonly=False,
-        help="User responsible of leaves approval.")
+        help='Select the user responsible for approving "Time Off" of this employee.\n'
+             'If empty, the approval is done by an Administrator or Approver (determined in settings/users).')
     remaining_leaves = fields.Float(
         compute='_compute_remaining_leaves', string='Remaining Paid Time Off',
         help='Total number of paid time off allocated to this employee, change this value to create allocation/time off request. '