Final answer:
The balance in the allowance for doubtful accounts after the year-end adjustment for Wellington Corp., considering an 8% estimated uncollectibility on accounts receivable and an existing $24,000 debit balance, will be (d) $504,000.
Step-by-step explanation:
To determine the adjustment for the allowance for doubtful accounts for Wellington Corp., we will calculate 8% of the outstanding accounts receivable. With accounts receivable totaling $6 million, the uncollectible portion is $6 million × 0.08, which equals $480,000. We also need to consider the existing debit balance in the allowance of $24,000. Therefore, we adjust the allowance to reflect the estimated uncollectibles plus the existing debit balance:
$480,000 (uncollectible estimate) + $24,000 (existing debit balance) = $504,000.
The correct balance in the allowance for doubtful accounts after the year-end adjustment will be $504,000.