RCW 84.69.120: Action on rejected claim—Time for commencement.

If the county treasurer rejects a claim or fails to act within six months from the date of filing of a claim for refund in whole or in part, the person who paid the taxes, the person's guardian, executor, or administrator may within one year after the date of the filing of the claim commence an action in the superior court against the county to recover the taxes which the county treasurer has refused to refund.