@sunnydoh-gmail-c , from your post I am not sure whether you are actually eligible for Foreign Earned Income Exclusion -- need the following info first :
(a) are you US person ( citizen / GreenCard / Resident for Tax purposes ) ?
(b) when did you leave US and when did you arrive at Switzerland ? You need a test period of 12 months abroad which must either start or end in the tax year and you must have been abroad 330 days in that test period -- Physical Presence Test;
(c) The pro-ration , after passing the physical presence test , is based on actual earning days in the tax year.
(d) The earnings to be considered as foreign earned income is either wages or self-employment income.
(e) any foreign income that is not eligible for exclusion and that had attracted foreign taxes , is eligible for mitigation of double taxation either by foreign tax credit or by deduction ( itemized deduction under State & Local taxes category --with SALT limitations ).
Please answer the questions above and I will circle back
