Add Subsection to Liabilities

I'd be glad to assist you in creating a new account and tracking your intercompany transactions in QBO, PaulM.

Although we're unable to create a new main category for your liability section in QuickBooks Online, you can make and manage subcategories through the existing structure in the account and detail types.

First off, please know that every account listed in the Charts of Accounts has both an account and a detail type that help determine what category of transactions are tracked by each account type. For more details, refer to this article: Learn about account types and detail types in QuickBooks Online.

Furthermore, it appears that you've correctly set up your Intercompany Transactions account based on your screenshot. Nevertheless, you can refer to these steps to set up the account for tracking intercompany transactions:

1. In your left menu panel, go to Transactions.
2. Select Chart of Accounts. Then, click the New button.
3. Enter the Account name in the field provided. Then, select Long Term Liabilities or Other Current Liabilities from the Account type drop-down list.
4. From the Detail type, choose the option that applies.
5. Review other details. Then, hit Save.

Since this involves setting up a new account for your Chart of Accounts, I'd recommend you collaborate with your Accountant to guide you further.

Additionally, if you wish to categorize your Transactions in QuickBooks Online, you can refer to this article: Categorize online bank transactions in QuickBooks Online

If you have other concerns or questions regarding managing and tracking your accounts in QuickBooks Online, feel free to contact us. The Community is here to assist you.