Hello,

Great question! QuickBooks Online is a great tool to manage your business finances. The program lets you add account numbers to the chart of accounts in a few easy steps. First, enable account numbers by doing so:

1.     Select the Gear icon on the Toolbar.
2.     Select Account and Settings
3.     Select Advanced
4.     In the Chart of Accounts section, select the edit (pencil) icon.
5.     Check Enable account numbers and Show account numbers. (Note: Enabling account numbers affects all users in your company. Showing account numbers only affects the user who is logged in).
6.     Select Save and then Done.

Once done, you can assign your account numbers by following these steps:

1.     Select the Gear icon on the Toolbar.
2.     Under Your Company, choose Chart of Accounts.
3.     Select the edit (pencil) icon above the Action column.
4.     In the Number column, enter the account numbers. Account numbers can be up to seven digits long.
5.     Select Save.

Here's a community article about how to enable and use account numbers in the chart of accounts: https://quickbooks.intuit.com/community/Help-Articles/How-to-enable-and-use-account-numbers/m-p/2616....

Let me know if you have any other questions.