If I work in one state but live in another do I file taxes for both states

Q. Do I file taxes for both states?

A. No. 

VA & WV have a reciprocal agreement, on wages. No VA taxes are withheld or due and you do not normally need to file a VA return. But WV will tax you on your other state income.

If VA taxes are mistakenly withheld, you then have to file a VA return,  to get a refund. WV will not give you a credit, for taxes mistakenly withheld by a reciprocal state. 

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<Edited>  OK now

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Be sure to file form VA-4 with the VA employer, indicating you are a resident of WV (IF you haven't already done so):

Forms | Virginia Tax

@SteamTrain --

Thanks! I knew I didn't get enough sleep last night.  I've gone back and deleted my incorrect answer.