>>>  I started with a balance of $5000 and created a invoice for $20,000. It shows a balance of $15,000. <<<

Interesting! So, it will show the balance as negative $15K or positive $15K. Either way, there is something wrong with Item List setup on Lists menu.

You will need go back and review […]

Resolution for 'company check issue: 'My invoices appear in the company check register as a payment. Why?' available: Yes.

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

For more information about resolving issues related to company check in Quickbooks/QBO or to get support for the issue 'My invoices appear in the company check register as a payment. Why?', click the link below: