Manley operates a law practice on the accrual method and calendar year. At the beginning of the year Manley's firm had an allowance for doubtful...

Manley operates a law practice on the accrual method and calendar year. At the beginning of the year Manley's firm had an allowance for doubtful accounts with a balance of $15,000. At the end of the year, Manley recorded bad debt expense of $23,000 and the balance of doubtful accounts had increased to $18,000. What is Manley's deduction for bad debt expense this year?