A partnership, joint venture, tenants-in-common, or joint tenants shall not be considered as a person but, notwithstanding the provisions of § 795.3, each individual or other legal entity who shares in the proceeds derived from farming by such joint operations shall be considered a separate person, except as otherwise provided in this part, and shall be listed as a producer for payment purposes on program documents. The payment shares listed on the program documents for each individual or other legal entity shall be the same as each individual or other legal entity shares in the proceeds derived from farming by such joint operation. Notwithstanding the foregoing, each individual or other legal entity who shares in the proceeds derived from farming by such joint operation shall not be considered as a separate person unless the individual or other legal entity is actively engaged in the farming operations of the partnership or other joint operation. An individual or other legal entity shall be considered as actively engaged in the farming operation only if its contribution to the joint operation is commensurate with its share in the proceeds derived from farming by such joint operation. Members of the partnership or joint venture must furnish satisfactory evidence that their contributions of land, labor, management, equipment, or capital to the joint operation are commensurate with their claimed shares of the proceeds. A capital contribution may be a direct out-of-pocket input of a specified sum or an amount borrowed by the individual. If the contribution consists substantially of capital, such capital must have been contributed directly to the joint operation by the individual or other legal entity and not acquired as a result of (a) a loan made to the joint operation, (b) a loan which was made to such individual or other legal entity by the joint operation or any of its members or related entities, or (c) a loan made to such individual or other legal entity which was guaranteed by the joint operation or any of its members or related entities.