I think I sold my house. I’ll be moving to a rental while building my new one. I’m about to do a Form 4. How will the moving effect things? How do you change address while waiting? I may be overthinking it but the wait is a huge inconvenience.

Do you already have an NFA item or is this the first, are you using a trust?

Fill out ATF 5320.20 or form 20. Send duplicates to ATF.

As stated - just fill out a 5320.20. You can email or fax them in. The form can be submitted via facsimile to the NFA Branch at
(304) 616-4501 or may be scanned and emailed to
NFAFax@atf.gov.

Form is located here:
https://www.atf.gov/file/11361/download

Use Acrobat software and it will fill out the 2 copies for you. Since you are moving, check No in box #2.

I believe that he is wondering how to change the address on a form 1 or form 4 that he is waiting for the approval (already in the system). He wants to know how to change the address to where they send the approved form.

It sounds like you haven’t sent the form 4 to ATF yet. As long as your not moving from the state you currently live in, your move shouldn’t have any effect on the transfer. The approved form 4 will be mailed to the dealer or the current owner if your buying from an individual. Once you receive the approved form 4 you can then notify ATF of your new address.
If your planning on moving out of state during the transfer, you should probably wait until you become a resident of that state to start the process.