TZKA

Difficult to predict interview date, but many had their Oath Ceremony 2-3 weeks after the interview. At any rate, you can inform your interviewing officer with your travel dates, and they typically accommodate you and take your travel in consideration when scheduling the Oath Ceremony date. We had also travel plan and the interviewing officer was very understanding. Do not worry. 

Journey completed today January 21, 2020, by Oath Ceremony at Atlanta USCIS office. Appointment was at 12:25 pm, but Ceremony did not start till 2 pm lasting less than 30 minutes. After Ceremony you can register immediately to vote on the first floor, then return to Ceremony room to take pictures if you like. 
 
Had submitted N-400 on June 5th 2019 online. Interview was on November 13 2019 at local Atlanta office. 

Journey completed today January 21, 2020, by Oath Ceremony at Atlanta USCIS office. Appointment was at 12:25 pm, but Ceremony did not start till 2 pm lasting less than 30 minutes. After Ceremony you can register immediately to vote on the first floor, then return to Ceremony room to take pictures if you like. 
 
Had submitted N-400 on June 5th 2019 online. Interview was on November 13 2019 at local Atlanta office. 

Take with you all original document you uploaded online when submitting N-400. Interviewing Officers vary. Some would not look at any of them. Some like in our case looked at each and every one of them. 

In our case it took 5 months. Files June 5th. Interviewed November 13. 

Congratulations!  you finally gonna be done with process. 

Document of Oath Ceremony is now visible online. Oath Ceremony day is January 21, 2020. N-400 submitted online on June 5 2019. Interview was at Atlanta office November 13.

If your wife American citizen by birth, and is written in her passport that her birthplace is in USA, then my guess her passport is adequate proof of citizenship, otherwise if she was naturalized, they probably want to see the original Naturalization certificate.  

If you lose your Certificate of Naturalization, you may request a replacement by filing Form N-565, Application for Replacement Naturalization/Citizenship Document. The fee to file this form is $555.

I had my interview on November 5 in Honolulu. I was recommended for approval. Up to this time, my status hasn’t change. Still saying, we scheduled your interview. As I was reading some posts, there might be a longer wait time if you requested a name change, which I did in my case. Hopefully, I’ll be receiving my oath schedule soon.

For my case. My stt on my uscis account changed in the afternoon same day my interview  day. " Oath Ceremony was mailed".
07 Nov interview day
22 Nov Oath ceremony day

I think the estimated completion date is just a formality for them. It'll change after your oath ceremony. In fact, it just goes away lol. In my case, my estimated completion date was August 2020 when i applied. But my oath ceremony was last month. My last update was 'we scheduled your naturalization ceremony...' And the day after my ceremony the' estimated completion date' just disappeared from my account:-)

Congratulations! Same day as yours and please send a shout out when you get your schedule. We might end up on the same day for this oath ceremony.

Interview done as scheduled today November 13 at Atlanta USCIS office. All took about 1.5 hours. Passed. Status on old USCIS website changed immediately to states : Will schedule ceremony. 

Wow! Congrats! I remember seeing you at the 1751 forum. 
Your case finished up pretty quick for N400 . crossing my fingers that my case is that quick ; I'm also a ATL office filers .  my case has been schedule for biometric. 

congrats!

Interview done as scheduled today November 13 at Atlanta USCIS office. All took about 1.5 hours. Passed. Status on old USCIS website changed immediately to states : Will schedule ceremony. 

I think you can just take the documents with you. You need to take them anyway even if you upload them. Uploading them give the officer the chance to review them before the interview. 
They do not look at State Taxes. Only federal. 

Interview scheduled for November 13 2019 in Atlanta USCIS office

Congratulations!
Here's hoping my long wait gets cut short too.

As fas as I know as long a person spends at least 6 months a calendar year in USA he or she should be OK

Just received email that interview was scheduled. Nothing online in either USCIS sites about date. Will wait. Submitted N-400 online on June 5th.  Biometric was in early July. Time to study. 

Just received email that interview was scheduled. Nothing online in either USCIS sites about date. Will wait. Submitted N-400 online on June 5th.  Biometric was in early July. Time to study. 

It depends on your local office, and it may vary between 3 and 12 months  if you go to your account online you see an "Estimated completion time" next to it it give you an estimate (Month and year)

Biometrics done today. Took less than 10 minutes to complete. on new USCIS website, processing time listed now as 13 months (July 2020), it had been September 2020 till yeterday