I'm citizen of Belarus. I was Swiss resident in Sep 2010-Aug 2012 when I was paying pillar 1 & 2 pension contributions. Then moved to Belarus. I withdrew Swiss pensions: Pillar 1 (USD ~3.5k) and Pillar 2a (USD ~30k) in March (tax paid to Switzerland). In Oct 2013 moved to California and have an option to be a full year resident (H1B + first year choice). This is beneficial to me (family, 2 kids, standard deductions, lower tax brackets as married filed jointly) if I don't have to pay taxes for Swiss pension in US.
If I execute First Year Choice to be a full year resident + filing married jointly in 2013, how these pensions are taxed on federal and CA state return? (Pillar 1 is covered with US Swiss pension tax treaty, not sure about Pillar2 - paragraph 'b' is unclear to me)
Different sources say different info. Most say this is nonqualified plan and need to be taxed on contributions (employee + employer) + dividents. My current local tax adviser (probably not experienced with Swiss expats) is saying this is taxed fully as income and I can take foreign tax credit).