Utah Code § 59-2-1349: Co-owners -- Procedures for redemption.

If two or more persons own an undivided interest in property on which a tax or tax notice charge delinquency exists, any owner may redeem the owner's interest in the property upon payment of that portion of the taxes, tax notice charges, interest, penalties, and administrative costs which the owner's interest bears to the whole, as determined by the county legislative body.