What states do I need to submit taxes for? Independent contractor working for several companies...

[mschumpert]

We live in SC, but my wife works as an independent contractor. She has been hired by several companies in other states to do work at various locations. 

More specifically, companies based out of TX, WA, and CO have hired her for work at different locations in SC and NH

So what states do I need to file taxes in? Thx

[LinaJ2018 · Accepted solution]

She will need to file taxes in those states where she was physically working in.  Companies' locations are irrelevant. She does not need to file a tax return for those states where the company is located in.  

If New Hampshire is the only state she worked in other than South Carolina, she does not need to file any nonresident state tax returns because NH does not have the state income tax.