Estimating allowance for doubtful accounts OBJ. 4 Waddell Industries has a past history of uncollectible accounts, as follows. Estimate the allowance for doubtful accounts, based on the aging of receivables schedule you completed in Exercise 8-8.

Age Class Percent Uncollectible Not past due 3%

1–30 days past due 4 31–60 days past due 15 61–90 days past due 35 Over 90 days past due 80