I lived in oklahoma. And i work at kansas. Do i need to pay taxes for both?

[pk]

Kansas and OK  do not have a reciprocity agreement -- therefore Your resident state will tax you on world income  while the Non-Resident state will tax you only on in-state sourced income.

So as a resident of OK, you prepare  your Kansas return first  ( after the federal return ).   Then you prepare  OK return. This way, OK will give you credit for taxes already paid to  Kansas.