Section R865-9I-21 - Return By Partnership Pursuant to Utah Code Ann. Sections 59-10-507 and 59-10- 514(1) Every partnership having a nonresident partner and income derived from sources in this state shall file a return in accordance with forms and instructions provided by the Tax Commission.(2) If the partnership has income derived from or connected with sources both inside and outside Utah and if any partner was not a resident of Utah, the portion derived from or connected with sources in this state must be determined and shown on the Utah forms TC-65 Schedule K and Schedule K-1.(3) A partnership may satisfy the requirement to file a return with the commission by maintaining records that show each partner's share of income, losses, credits, and other distributive items, and making those records available for audit if:(a) all of the partnership's partners are resident individuals; and(b) the partnership is not a pass-through entity taxpayer.Utah Admin. Code R865-9I-21