Tax situation - Employer in a different state and employee in a different state

[rrajaram]

Hi

I worked part of the year (1 month to be precise) with an employer who doesn't have an office in Colorado as a fully remote employee for current employer A . Do  I need to file a state tax return for that  employers (A) state in addition to my Colorado state tax where I lived the entire year, the previous employer B was based out of Colorado with whom was employed for 10 months.  Please clarify.

[CatinaT1 · Accepted solution]

You file in the state where you lived and worked, regardless of where the company is located or based.

If you physically worked in Colorado all year, all your income is Colorado source income. If you worked in another state for 1 month, the income you had for that one month would be source income from the state you worked in. You would then file a full year resident return for the state you lived in and a non-resident return for the state you worked in.