QB Issue Resolution:

Yes, it’s called buying a second subscription. Because each LLC has a unique FEIN you cannot (in my opinion) get away with separation of entities by Class Tracking within a single company file. The IRS also says each company has to have separate books.

https://quickbooks.intuit.com/community/Help-Articles/Create-or-add-another-QuickBooks-Online-compan…

Create a new QuickBooks Online company

Here’s how to create a new QuickBooks Online company:

  1. Go to https://quickbooks.intuit.com/choose-country/.
  2. Choose your country to be directed to your region specific QuickBooks Online website.
  3. Select the QuickBooks Online version you need.
  4. Choose to buy now, or start a free trial. (Note: This is not a UI-specific step, the “Buy Now” and “Free Trial” buttons vary depending on country.)
  5. On the signup page, select Sign In or Add another account if you have an existing QuickBooks Online account. If you don’t, continue creating a new one.

Resolution for Issue 'Can I add another LLC on my QB account but account separately….Same owner different companies.?' available: Yes (Solved).
Source: Intuit Community forum.

Can I add another LLC on my QB account but account separately….Same owner different companies.?: this issue or error code is a known issue in Quickbooks Online (QBO) and/or Quickbooks. Support for this issue is available either by self-service or paid support options. Experts are available to resolve your Quickbooks issue to ensure minimal downtime and continue running your business. First try to resolve the issue yourself by looking for a resolution described below. If it is a complex issue or you are unable to solve the issue, you may contact us by clicking here or by using other support options.

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