I am confused about the definition of "resident" for income tax purposes. I thought you could only be a resident of one state at a time, even though I know you can move during the year and be a resident of more than one state during a particular year. However, I now believe that it is possible to be a part-year resident of two states by alternating where you spend your time. The instructions for the NY IT-201 state "You can only have one domicile." My son votes in NY, has a NY driver's license and considers NY to be his permanent place of residency, so I believe his domicile is NY. The IT-201 instructions then go on to state that if your domicile is NY you are a resident of NY unless you spent 30 days or less in NY during the taxable year. (Excluding the foreign country option.) Since he spent at least 30 days in NY for vacations and such during the year, he is a resident, or at least a part-year resident. DC seems to have a different definition for resident. There are no specific definitions for resident in the instructions for Form D-40, but Form D-40B, the Non-Resident Request for Refund states "A nonresident is anyone whose permanent home was outside DC during all of 2004 and who did not live in DC for a total of 183 days or more during 2004. Since my son did live in DC for more than 183 days then he does not meet the conditions to be a non-resident of DC. I can only conclude that he must be a part-year resident of both NY and DC, even though the time he spent in NY was just in 1 to 2 week periods spread throughout the year. Does this make sense?
-- Vic Roberts Replace xxx with vdr in e-mail address.