Answer:
A partner's distributive share of partnership loss is allowed only to the extent of the adjusted basis of the partner's partnership interest:
Computation:
Year 4 Year 5
Mutt's share of profit(loss) at 50% ($15,000) $14,000
Basis 8,000 0
Unallowed loss (carryover) ($ 7,000) ($ 7,000)
Taxable income(loss) allowed ($ 8,000) $ 7,000