I am posting emails that are forwarded to me on the question of treaty benefit
for people who changed status/visa from H4/F2 to F1 without going back to
China.
Please be considerate not to contact these persons for your own questions.
Email of Judy Todd from contact in IRS:
" In general, persons who change immigration status from dependent to
principal are not eligible for tax treaty benefits UNLESS the change to
principal occurs within two months from the original arrival in the
U.S. The IRS