My client is a limited partner in a partnership. They have guarantee payments as well as unreimbursed mileage. When I enter the mileage and other deductions as  UPE, it does not reduce self employment taxes. I thought this was allowed against SE tax. Can someone provide insight on the rules here. They do have a positive capital basis.

Also, they have a sec 179 deduction on form K-1.  The spouse has negative farm income. Is sec 179 limited by the joint income or should I be changing something on 4562 to allow the deduction. The sec 179 deduction is less than their basis in the partnership and is less than the guarantee payment.