You’ve got Two Different things confused.

1) they are Subcontracting their own business work:

“We need invoice the customer/homeowner for the full amount.  Once we receive payment, we have to pay the subcontractor their 85% of each invoice and keep the 15% as profit.”

Like this:

You invoice Your Customer in full. This is […]

Resolution for 'being paid issue: 'How to book 15% commission on every transaction in a division, but have it ‘not visible’ to customer?' available: Yes.

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

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