If I was covered by an employer plan for half of the year (old job) and then rolled over those funds to a IRA, how can I determine what to contribute to my traditional IRA to maximize my deduction? I was not in my employer plan for the last half of the year.
I know this is based on deductions (https://www.irs.gov/retirement-plans/2017-ira-deduction-limits-effect-of-modified-agi-on-deduction-i...) but would I considered my modified AGI on the first job that i contributed the 401k for (which would be enough to contribute fully) or consider it lumped (which would then be only a partial deduction). If it is a partial deduction, how could I determine what to contribute to maximize the deduction?
