Joe operates a plumbing business that uses the accrual method and reports on a calendar year. This year Joe signed a $50,000 binding contract with Brian. Under the contract Brian will provide Joe with up to 2,000 hours of vehicle repairs at $25/hour. This year Brian provided 200 hours of repair services and billed Joe for $5,000. At year end Joe had not paid Brian for the services. What amount, if any, can Joe deduct for the repair services this year? Explain your answer.