If it is asking for an Apartment number and you don't live in an apt. Try entering N/A in the Apt. number field and this should allow you to continue your tax return.
Note: Please be sure that an apt. number was not accidentally entered in the mailing address section of the federal return. Here's how to verify:
- Sign into your Online account and select Take me to my return
- Select My Info in the left side bar.
- Scroll down to Mailing Address to verify the address listed is accurate.