---
title: "Creating Task-Lists or Sub-Tasks"
description: "## What is a Task-List A task list is a grouping of tasks within a project into one list. It also also called a task with sub-tasks. There is no limit in iBE.net's layers of sub-tasks, you can create task-lists…"
url: "https://www.ibe.net/docs/creating-task-lists-or-sub-tasks/"
updated: "2026-01-05"
category: "Project & Tasks / Working with Tasks"
---

# Creating Task-Lists or Sub-Tasks

## What is a Task-List

A task list is a grouping of tasks within a project into one list. It also also called a task with sub-tasks.

There is no limit in iBE.net's layers of sub-tasks, you can create task-lists within task-lists within task-lists and so on.

## How to Create a Task List

![](https://cdn.document360.io/78b546e3-7b9f-4bd7-98e5-38d651fd99e6/Images/Documentation/Screenshot%202025-03-12%20at%2012.25.51%E2%80%AFPM.png)

Within your project, select a task you want to convert to a task list and click on the "Add Sub-task" link (1). A new row will be added below your task as a sub-task (2) for you to enter sub-task description etc.

Your selected task has become a task-list and you will see an expand/collapse icon in front of it (3).

You can enter more sub-tasks by either:

- Selecting the parent task or task-list and clicking on "Add Sub-task" link again (1), or
- Selecting any of the tasks within your task-list and click on add row (4) or Add Task (5).

**Adding a task to a sub-task adds what we call a "sibling" or brother/sister task, one which shares the same parent task or task-list as the selected task.**

## What Impact does a Task-List Have?

Sub-tasks, or tasks within a task-list, must start after and end before the task-list. This is similar to how project tasks must start and end within the project dates. In addition when you create a sub-task certain properties such as phase, resources, product or service, dates or even task type. You can control what is copied from task down to sub-task in task type settings.

Progress, costs and revenues are not currently rolled up from sub-task to task or to the task-list, like how they are rolled up from task to project. You may choose to plan resources, book time or expenses and manage progress at either task-list level, sub-task level or at both levels.

**General best practice is to book revenue and cost at the same level in your task hierarchy, either recording time and planning resources, costs and revenues at task-list level (and having sub-tasks more like a to-do list) or recording time, costs, revenues and progress at sub-task level (and having task-lists behave rather like project phases as simply a way to group together tasks within a project).**