Yes, when you e-file W-2 forms, the W-3 is e-filed as well!
Thanks for posting the question, I hope this answers it for you. Please mark this as solved if it did! If not, please post more questions that I can answer for you.
Resolution for 'automatically file W3 issue: 'When I e-file W-2s, does Intuit online payroll automatically file W-3?' available: Yes.
The automatically file W3 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 automatically file W3 issue yourself by looking for a resolution described in the article. If it is a complex automatically file W3 issue or you are unable to solve the issue, you may contact us by clicking here or by using other automatically file W3 support options.
For more information about resolving issues related to automatically file W3 in Quickbooks/QBO or to get support for the issue 'When I e-file W-2s, does Intuit online payroll automatically file W-3?', click the link below: