The system won’t allow you to electronically file the Form 941 if you still have a balance due. This is to ensure that you are reporting the forms accurately in compliant with the IRS. You can refer to the article below for added information:

https://community.intuit.com/articles/1431012

Resolution for 'added information issue: 'How to trasmit a 941 to show a balance due for efiling' available: Yes.

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

For more information about resolving issues related to added information in Quickbooks/QBO or to get support for the issue 'How to trasmit a 941 to show a balance due for efiling', click the link below: