<a rel="nofollow" target="_blank" href="
http://www.revenue.pa.gov/FormsandPublications/PAPersonalIncomeTaxGuide/Documents/pitguide_chapter_0...>
(pages 72-73)
I am not super familiar with this topic, but I do know PA and NY are among the toughest with this. Its my understanding that if you work outside of PA for a PA company by choice even if your employee wants you to, that its still PA source income and taxable.
Now, the more interesting scenario, is if there is no way you could work in PA for the PA company - i.e. there is no space at the office for your job etc. In that case, I would argue that it meets the necessity requirement that the work be performed outside the state and thus not subject to tax. I **believe** that is the interpretation of the law that PA applies also. But, PA is very big on the W2 controlling the character of the income, so the user will want to speak with HR ASAP.
