In the US, each business has to have its own accounting file, file its own tax form (sch C for sole proprietors), and stand on its own financially.

So a sole proprietor might have more than one schedule C as part of his 1040 filing.

short answer is a new business should […]

Resolution for 'business templates issue: 'QBO user: How do I set up our new DBA that has the same tax id# and same location number as my current company?' available: Yes.

The business templates 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 business templates issue yourself by looking for a resolution described in the article. If it is a complex business templates issue or you are unable to solve the issue, you may contact us by clicking here or by using other business templates support options.

For more information about resolving issues related to business templates in Quickbooks/QBO or to get support for the issue 'QBO user: How do I set up our new DBA that has the same tax id# and same location number as my current company?', click the link below: