I am doing my mother's taxes. She had a stroke and my brother and I are her powers of attorneys. She lived in Kansas and her bank that received the RMD is in Kansas. Her mailing address was changed to Oklahoma where my brother lives, so her 1099-R has OK for the state tax withheld. I am filing her taxes in Kansas. I talked to JP Morgan who are the payer's on the 1099-R and they say to call the retirement company to get myself put on account as power of attorney, then they could file a corrected form. Would it be legal if I just filed an OK state tax also and not go through the correction?