Final answer:
The net adjustment to the allowance for uncollectible accounts for Dahir Incorporated is $12,000 (credit). This figure corrects the current debit balance and aligns the allowance with the estimated future uncollectibles.
Step-by-step explanation:
To Dahir Incorporated's question about the net adjustment to the allowance for uncollectible accounts is 2) $12,000 (credit). When adjusting the allowance account, the company must ensure that the ending balance of the allowance for uncollectible accounts matches the estimated future uncollectible accounts of $15,000.
Currently, the allowance account has a debit balance of $3,000, which is the opposite of the usual credit balance expected for this type of account. To adjust the account to the estimated balance, a credit of $18,000 is needed. Here's why: the $3,000 debit balance must first be eliminated with a $3,000 credit. Then, an additional $15,000 credit is needed to reach the estimated future uncollectible accounts, resulting in a total credit of $18,000. However, since the question asks for the net adjustment, we subtract the $3,000 debit from the $18,000 credit, arriving at a net adjustment of $12,000 (credit).