Jerry, a cash-basis engineering consultant, wanted to defer income to next year. A client who was in Jerry's office on December 31 of the current year offered to pay his $3,000 bill immediately, but Jerry told him to pay in January. A check for $8,000 from another client arrived in the mail on December 28, and Jerry told his office manager not to deposit it until January. Jerry also told his office manager not to send a client a bill for $10,000 for services performed in the current year until January of next year. How much income from these transactions should Jerry report in the current year