Brief Exercise 5-7 Record the adjustment for uncollectible accounts (LO5-3) At the end of the year, Dahir Incorporateds balance of Allowance for Uncollectible Accounts is $3,000 (debit) before adjustment. The company estimates future uncollectible accounts to be $15,000. What is the adjustment Dahir would record for Allowance for Uncollectible Accounts? (If no entry is required for a transaction/event, select "No journal entry required" in the first account field.)