Rubio recently invested $20,000 (tax basis) in purchasing a limited partnership interest. His at-risk amount is $15,000. In addition, Rubios share of the limited partnership loss for the year is $22,000, his share of income from a different limited partnership is $5,000, and he has $40,000 in wage income and $10,000 in long-term capital gains.

a. How much of Rubios $22,000 loss is allowed considering only the tax-basis loss limitations?