You cannot have multiple businesses in the same QuickBooks Online account. You CAN have multiple accounts under the same login though. You would need to sign up for a separate subscription for each company,.
Resolution for 'businesses issue: 'Can I have multiple businesses on quickbooks? How?' available: Yes.
The businesses 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 businesses issue yourself by looking for a resolution described in the article. If it is a complex businesses issue or you are unable to solve the issue, you may contact us by clicking here or by using other businesses support options.
For more information about resolving issues related to businesses in Quickbooks/QBO or to get support for the issue 'Can I have multiple businesses on quickbooks? How?', click the link below: