So I live in and am a current resident of WV now and I am a contractor for my current employer who resides in CA. I want to move to a FTE, the only issue is that HR will only allow employees to live in CA, WA, OR, IL, and AZ. Can I just get a PO box in one of those five states and then just give HR that PO box address? =============>I am not sure I guess you need to contact the HR iif you just give them the POBox address. For an ER, having ONLY a contractor’s PO box can be a red flag. many contractors work from home and therefore use a PO box rather than giving out their home address. Other reasons include living in a rural area but needing business correspondence based in a city. A PO box is cheaper than an office that doesn't get used.However, there are many contractors that will only use a PO box so that when things go wrong they can easily disappear. Your ER wants to easily find out where you live. If you own your home you will be listed along with your address. I guess you , as a contractor, whom you have a contract with should not have a problem providing your ER with a physical business address, whether it be a business or home. Your ER may not be happy no matter what you do. They are often the ones looking to screw over the contractor before work has even begun, making the contractor the victim. If you have been in business a while you are definitely had at least a few of these.
Your ER (HR) may ask you why you use the PO box. If your ER has great reviews andthey can't find anything negative about you I'm sure there is a good reason.
Would I then have to file a state income tax return for whichever state the PO box is in? =========>>>You need to report your income to states where you earn your income as nonresidents of the states you generally claim those taxes that you pay to those sates on your state return.
Would I still have to pay WV state income tax? Would I have to change my residency from WV to whichever state the PO box is in?========>>>>>You still need to file your WV return UNLESS you are a non resident of WV. You need to contact the Dept of Revenue of WV to see if/how you qualify as a special nonresident for WV.