RCW 50.24.030: Contributions erroneously paid to United States or another state.

Payments of contributions erroneously paid to an unemployment compensation fund of another state or to the United States government which should have been paid to this state and which thereafter shall be refunded by such other state or the United States government and paid by the employer to this state, shall be deemed to have been paid to this state and to have filed contribution reports thereon at the date of payment to the United States government or such other state.