Estimating Allowance for Doubtful Accounts Kirchhoff Industries has a past history of uncollectible accounts, as shown below. Age Class Percent Uncollectible Not past due 2% 5 20 1-30 days past due 31-60 days past due 61-90 days past due Over 90 days past due 30 45 Estimate the allowance for doubtful accounts, based on the aging of receivables schedule below. Kirchhoff Industries Aging of Receivables Schedule Customer Balance Not Past Due 1-30 Days Past Due 31-60 Days Past Due 61-90 Days Past Due Over 90 Days Past Due Subtotals 648,900 382,900 142,800 58,400 32,400 32,400 Conover Industries 16,000 16,000 Keystone Company 16,300 16,300 Moxie Creek Inc. 8,400 8.400 Rainbow Company 10,200 10,200 Swanson Company 24,900 24,900 Totals 724,700 407,800 153,000 66,800 48,700 48,400 2% 5% Percentage uncollectible 30% 20% 45% Allowance for Doubtful Accounts