On January 1 of the current year, C made a gift of a 25% interest in the Mariner Partnership to his son, P. The partnerships business was bookkeeping; capital was not a material income-producing factor. P had no interest in working as a bookkeeper. C, who retained a 35% interest, and X, the other partner, performed all the work. A reasonable salary for C was $20,000 and for X was $10,000, which they received as guaranteed payments. During the year, Mariner had a profit of $130,000 before any guaranteed payments. How much income should P include in his tax return for the current year?