2. Estimate the Allowance for Doubtful Accounts required at December 31, 2014, assuming the only receivables outstanding at December 31, 2014, arise from the transactions listed above. NGS uses the aging of accounts receivable method with the following uncollectible rates: one month, 3%; two months, 5%; three months, 20%; more than three months, 30%. Estimated Uncollectable One Month Two Months Three Months More than Three Months Total 0 3. The Allowance for Doubtful Accounts balance was S38 (credit) before the end-of-period adjusting entry is made. Prepare the journal entry to account for the Bad Debt Expense. (If no entry is required for a transaction/event, select "No Journal Entry Required" in the first account field.) a Bad Debt Expense Allowance for Doubtful Accounts