Just upload the new Tax Return Transcript from the 2025 tax year. You do not need to update the entire I-864. When you go to the "Unsolicited Documents" function on the I-485 in the portal, it asks you to tell them what type of evidence you are uploading. Use the option for I-864 evidence. This is what we did when we had our updated 2024 Tax Return Transcript available
Notify USCIS in writing at the service center address on the bottom left corner of your approval notice that you are withdrawing the petition and then find the Immigrant Visa Unit support request mechanism for the embassy where it was scheduled, give them the NVC case number and tell them that you are contacting USCIS to withdraw the petition
New policy is that they are not able to reuse biometrics for N-400 applications. All Naturalization applicants have to have a new biometrics collection
You won't get an invoice number for K-1 because there is no need for you to log in. I would do another PI and ask them to confirm that they have your correct email addresses and provide them yours and your fiancée's email addresses. This will flow down to the embassy when they send the case to them and will ensure that you both get any and all email notifications from them.
The first thing it is going to ask you to upload is the I-751 Form which you should fill out, print sign and scan into a PDF to do this upload step. Upload the signed form (signed by you and your spouse). Then you will upload evidence separately
This is fantastic advice! We brought 2 portable filers with us to our interview with just about every piece of evidence we had generated since we had met just in case.
You should make sure that the 9 digit number on the IV that you are inputting is actually the A-Number. Are you using the number that says "Registration Number?"
For Immigrant Visas they no longer issue the sealed envelope - It's all done electronically. Are you using the A Numbers that were provided on the I-130 approval notice? Are they the same as the A-Numbers on your parent's visas?