I "temporarily relocated" to Colorado for work for all of 2016 but maintained my residence in Pennsylvania. Should I put my state of residence as Colorado or PA?

[stor0213]

My employer withheld CO State taxes.

[TomD8 · Accepted solution]

If you maintain your "domicile" (your permanent home) in PA and intend to return there, enter your state of residence as PA and indicate that you earned Other State Income in CO.  PA considers you a resident for tax purposes as long as you maintain your domicile in PA.  An individual can have only one domicile.

Your income is taxable by both states, but you'll be able to take at least a partial credit on your PA return for taxes paid to CO.

In TurboTax, it's critical that you complete your CO state return BEFORE you complete your PA state return, in order for the credits to flow correctly.

[stor0213]

What do I put on my Colorado return, for my residency status? Non-resident, full-time, part-time?  I lived in CO for the entire year.

[TomD8]

I would put "Full-time".  You are what's called a "statutory resident" of Colorado.  A person is a
“statutory” resident of Colorado if the person maintains a permanent place of abode in Colorado and spends, in
aggregate, more than six months of the tax year in Colorado.  So you are not a non-resident.  A part-time resident is someone who moved their domicile into or out of Colorado during the tax year.  You do not fit either of those definitions.  See this for more detail:  <a rel="nofollow" target="_blank" href="https://www.colorado.gov/pacific/sites/default/files/Income6.pdf">https://www.colorado.gov/pacific/s...>