Question regarding late filing of form 8854

Assume the following imagined situation:

1. The I-407 was filed on 10/30/2010 but no f8854 was filed for that year

2. In August of 2024 it was discovered that a f8854 should have been filed in 2010

3. A f8854 is in preparation to be filed on 8/20/2024

 

For this scenario the instruction for Form 8854 of 2018 is relevant.

More specifically the section “Expatriation After June 16, 2008” is relevant.

 

Below are my questions:

1. Net worth needs to be calculated on the date of expatriation. What is the date of expatriation? 

Is it the date when the I-407 was filed (10/30/2010)? Or is the date when the initial f8854 will be filed (8/20/2024)?

2. The instructions say:

Attach your initial Form 8854 to your income tax return (Form 1040 or Form 1040NR) for the year that includes your expatriation date, and file your return by the due date of your tax return (including extensions).

Again, what is the expatriation date? And to what year of tax return does the f8854 need to be attached? 2010 or 2024?

3. Also in Part V, Schedule A and B the expatriation date determines what data needs to be entered into the form 8854. Again. What is the expatriation date?

 

Please somebody explain.