Good news for you, Karen.
We allow you to electronically file federal Forms W-2 with the agency at no additional charge. E-filing is already included in your payroll subscription. As long as you're using QuickBooks Enhanced level service, you can electronically file the W-2 form.
For QuickBooks Online, you can visit here where you can learn more on how to perfectly process and file the said form using Online Payroll.
For QuickBooks Desktop, you can refer to this article to get further details on how the process should being done.
If you have other questions or need to clarify something with e-filing, just post them here. I'll be right here to help you figure them out! Take care!