Ex -US citizen, effective Sept 2018. All final tax arrangements completed at that time. Birth citizenship UK. Holiday home in USA(FL) -normally spend 3-4 months p.a. in USA. US B1 visas for self and wife.
FY 2020. Due to Covid 19, forced to stay in USA for almost 12 months, with visa extensions. FY 2021 may be same.
Need assistance in how to meet US tax law in above situation. Actual tax prep very simple