@mengtaizhang , generally agreeing with the answer from my colleague @LenaH , just wanted to add
(a) if there is any way possible it would be tax beneficial for you to depart the USA around 31st of December of 2025. This would allow you to be a full year tax resident -- full standard deduction and no need to file as dual status taxpayer ( form 1040 for the year 2025).
(b) if you have been a tax resident for significant time ( 7-10 years ) you would be treated as a long-term resident and thus come under the need for exit/ sailing permit ( as mentioned by @LenaH ). Please consider familiarizing yourself page 73 through 76 of the IRS Pub 519 --> 2024 Publication 519 ( I am not aware of any substantial changes to this under the OBBB Act of 2025 and so the 2024 Pub is generally valid ).
Is there more I can do for you ?
